US2548360A - Electric oil well heater - Google Patents

Electric oil well heater Download PDF

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US2548360A
US2548360A US17675A US1767548A US2548360A US 2548360 A US2548360 A US 2548360A US 17675 A US17675 A US 17675A US 1767548 A US1767548 A US 1767548A US 2548360 A US2548360 A US 2548360A
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elements
heater
cable
oil
well
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Stanley A Germain
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B36/00Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/04Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters

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  • This invention comprehends the provision of an improved heater for oil wells for the same purpose of that shown in my pending application for patent filed May 6, 1939, Serial No. 272,203, issued March 17, 1942, as Patent No. 2,276,833, and contemplates the provision of an electric heater adapted to be lowered into the casing of a well and submerged in the oil in such a manner and to such eiTect that heavy gravity oil which is ordinarily incapable of being pumped from the well in its natural state, at least in sufiicient volume to render a well profitable or efiicient, may be heated and thereby thinned to a constituency capable of being pumped in full and profitable volume.
  • An object is to provide a mechanical pump structure which is particularly arranged to receive and support a special and novel form of electrical heating apparatus embodying a plurality of heating elements of special form and characteristics which, when connected with a source of electricity will not influence or disturb the operation of one or more of the elements in the event that another or others are broken or im paired, and, at the same time will permit of variations in any of the elements without affecting the others.
  • Another object is to provide an electric circuit including a multiple conductor cable, the conductors of which are surrounded by a conductor at ground potential for controlling the current supplied to the elements at a point common to all of the conductors of the cable.
  • a still further object is to provide in a heater of the character mentioned, means for insulating the heating elements of the system so as to divide the voltage applied to them and between them, and a common ground through the use of terminals encased in protective shields.
  • Another object is to provide means for individually varying the fiow of current in any of the heating elements fed by their respective conductors in order that the temperature of any one of the elements may be continuous and inherently adjusted for its individual indicated temperature condition without interference with the temperature effects of the remaining elements.
  • Fig. 1 is a sectional elevation of an oil well with my improved apparatus operatively installed therein;
  • Fig. 2 is a sectional elevation of the uppermost unit of the apparatus as shown in Fig. 1 by means of which a multiple conductor cable from a point above the ground surface is operatively connected with the heater;
  • Fig. 3 shows a sectional elevation of the upper portion of the heater
  • Fig. 5 is a cross sectional view of the structure on line 5-5 of Fig. 2;
  • Fig. 6 is a cross sectional view of the same on line 65 of Fig. 3;
  • Fig. '7 is a cross sectional view on line 'l! of Fig. 3;
  • Fig. 8 is a cross sectional view on line 88 of Fig. 4.
  • Fig. 9 is a circuit diagram of the heater and associated elements.
  • a cable connecting unit A is suspended within the well casing B outwardly of the pump casing C and is formed of a plurality of axially alined and connected sections A1, A2, and A3.
  • a cable D depending from the surface carriers a plurality of independently insulated conductors D1, D2, and D3 which are embedded in a thermoplastic body D4 covered exteriorly by means of a metal armor D5. That portion of the cable D which extends into the upper portion of section A1 of unit A, as at D6, is wiped or soldered with metal so as to provide a uniformly smooth periphery for the cable in order that its entrance to the section A1 may be suitably packed against leakage of water or oil.
  • a conventional stumng box structure is provided at the upper end of section A1 and includes a compressible packing ring D1 seated in a bore D8 formed in the upper end of section A1 and a plug D9 threaded into the open end of section A1 and'adapted to compress the packing ring D1 around the portion D5 of the cable and between the end of plug D9 and bottom of bore D8 of section A1.
  • Sections A1 and A2 are detachably secured together by means of a nipple A3 threaded into the lower end of section A1 so that adjacent ends of sections A1 and A2 will compress a copper and asbestos gasket A4 therebetween.
  • a stufiing box including a compressible packing ring A5 held in a bore As of section A2 adapted to b'e'compressed around a portion D10 of cable D by means of an adjustable plug A7 threaded into the nipple A3.
  • Portion D10 of the cable is stripped of its armor from a point slightly below the packing ring D7 to its lower end as shown in Fig. 2.
  • Sections A2 and A3 are detachably connected, as shown in Fig. ,2, by means of a nipple A8 threaded into the upper end of section As, and this joint is r'endere'dleakproof by means of a copper and asbestos gasket A9, a packing ring A10 and a plug A11, arranged 111 a manner similar to the elements of the joint between sections A1 and A2, theportion D10 f the cable being extended through the ring A10 and plug A11.
  • section A3 I provide a dielectric block E in which the conductors D1, D2, and D3 are inserted 'and held in tubular contacts E1 as by means of set screws E2, and in which contacts insulated wires F1, F2, and F3, 'are similarly held by means 'o'i set screws F4.
  • the lower end of section As is closed by'in'ea'ns of a closure A12 which has a flangeAn overlying a copper and asbestos 1 washer A14 held against 'a shoulder A15.
  • Closure A12 is threaded so to receive a nut A16 below the'lowr end of s'ection Asso that when the nut is tightened the lower "end of the section A3 will be leakproof.
  • Wires F1, F2, and F3 are enclosed in steam conduit whichi'swelded at G1 and G2, respectively, to the upper and lower ends of the plug Ac. Wires F1, F2, and F3 are insulated apart and from the conduit G.
  • conduit G is screwed into a nipple H and is welded at Hz to the upper end of said nipple.
  • the lower end of said nipple is screwed into a projection H3 of a fiirture H and'li'as'a gasket Hi interposed between said nipple and said projection to render the joint leakproof.
  • rirm'ren has a bottom Hrand a circular wall He, together with a passage H affording communication between the interior of the fixture and the portion H3 whereby wires F1, F2, and F3 may be ledinto the interior of the fixture for connection with terminals J1, J2 and J3, respectively, mounted on bottom H; of member H for connection with heating elements to be hereinafter described.
  • Closure K2 and the fixture H are detachably associated with the sleeve K for the purpose of assembly and disassembly of the parts, the slot K1 being open at the upper end of the sleeve so that said fixture may be readily moved into and from operative position in the sleeve, and the nipple and closure are also removable from the sleeve when the screws K3 are loosened.
  • the upper end of the sleeve K has a plurality of recesses Ks which are adapted to be engaged by pins K7 for properly alining the nipple C1 and sleeve K.
  • Fixture H has a separate closure H7 which is threaded into the upper open end of a chamber H8 against a gasket H9 and may be provided with peripheral bores H10 preferably arranged with their axes on a diainetrical line so as to receive a spanner wrench by means of which the closure may be tightened so as to provide a leakproof joint.
  • chamber H6 is in constant communication with chamber H8 the closures H1 and 1-11 for said chambers, respectively, completely seal the chamber H3 against the entrance of air or moisture except such as may result from condensation of the latent air in conduit G.
  • terminals J1, J2, and J3 are insulated apart as well as from the bottom H4 of member H Within chamber Ha it is important that there should be no possibility of the presence of moisture in the vicinity of the exposed ends of the terminals. Hence, the moisture absorber is an extra though not always, a necessary precaution.
  • the pump casing C is connected with the perforated inlet nipple C1 by means of a coupling C2 and, as shown in Fig. 1, said nipple is substantially below the level of oil in the well inorder that the oil whichi heated at points below the pump will be readily induced into the nipple for expulsion at a point above the surface.
  • the heaterproper includes a plurality (three in the form shown herein) of heating elements which are chosen because of certain characteristics whereby theyare subject to a variation of their inherent resistance to the flow of electric current therethroughin accordance with created temperatures. For instance, I have determined that a heater for the purpose of my invention should b ecap'able of normally and consistently maintaining atemperature of about 340 or more degrees Fahrenheit when submerged in oil of a well, and thatlower or higher temperatures will, respectively,decrease the eificiency of the heater and deteriorate theelements.
  • thermostatic efiect a modification of a certain element now inuse has what may be termed a thermostatic efiect and that asthe temperature thereof is approaching a predetermined point, depending upon the peculiar characteristics of the element in different cases,the resistance will vary to a sufiicient extent with temperature changes, so as to prevent an excessive temperature or rapidly reduce a prevailing temperature to a normal point.
  • Figs. 3 and 4 have shown in Figs. 3 and 4, three of such elements connected in agrounded electrical circuit with a source of power from above the surface and suitably encased in a protective shell or housing. Said elements are indicated at L1, L2, and L3 and are connected at their upper ends, respectively, with the terminals, J1, J2, and J3.
  • a perforated cas'ing or housing L4 encloses the elementsandyet by'means of the perforations L5 therein affords direct contact between the 011 of the well and the elements for heating purposes.
  • the upper end of easing Li extends substantially into the bottom of sleeve K and preferably against the bottom H4 of fixture H.
  • the casing is welded at L6 to sleeve K so as to remove possibility of leakage of oil from the casing into chamber H8 and thereby causing short circuiting of the terminals J1, J2, and J3.
  • Casing L4 is of substantial length and is connected at its lower end to a coupling L7 which, in turn, is connected with the upper end of a relatively short tubular section usually known in the art as a bull plug L8.
  • Said member L8 is open at its bottom and is perforated throughout its length and serves to enclose the lower end of the heating elements L1, L2, and L3, as shown in Fig. 4.
  • a fixture L9 is loosely mounted within member L8 and has a cylindrical wall L10, a closed top web L11 and a detachable bottom closure L12 which is screwed into the lower end of the Wall L against a gasket L13 for the purpose of sealing a terminal chamber L14 within fixture L9 against the entrance of oil from the well.
  • Closure L12 is similar to closure H7 in that it is provided with wrench receiving bores L15.
  • the lower ends of the heating elements L1, L2, and L; are attached to but insulated from the bottom L11 of fixture L9 and are connected with terminals M1, M2, and 1%, respectively, within chamber L14.
  • the lower ends of the terminals support a contact plate L15 which is continuously in electrical contact with all of the elements of the system and also with a ground contact L16 attached to one of the heating element terminals and engaging the upper side of closure L12, for affording a common ground to all of the elements through the plate L15.
  • the parts of the heater unit illustrated in Fig. 4 are so formed that the assembly and disassembly thereof may be readily accomplished, particularly with respect to the outside diameter of fixture L9 and the inside diameter of protective casing L4, so that the heater unit when completely assembled may be inserted through casing L4 and into the lower member L8.
  • connection of three or more elements of an electrical circuit in such a manner that they may be supplied with current by means of a multiple conductor cable and at the same time surrounded by a conductor at ground potential for controlling the current supplied to the elements at a point common to all;
  • resistance elements the inherent characteristics of which adapt them to high variations in resistance in accordance with temperature changes and in which the resistance characteristics vary with temperature changes, thereby lowering the current flowing through the elements by reason of the increase of resistance in accordance With the temperature of the elements.
  • the temperatures of the several elements being abled to indicate at the surface of the earth the prevailing temperature of any element Without the use of pilot wires, potential leads or other auxiliary circuits as well as a consequent interruption of the power circuit supplying the elements.
  • the heater assembly In operation the heater assembly is lowered into the well as shown in Fig. 1 to a point below the level of the oil in the well.
  • the heat generated in the heat penetrating structure by the heating elements becomes effective for thinning the oil of the well the oil is caused to flow and is exhausted from the well by means of the pump C in far greater volume and to greater profit than when a heater is not employed.
  • the well production is more than doubled and generally always substantially increased over production without a heater
  • a structure comprising: an elongated tubular member detachably secured to the lower end of the pump screen and provided with a longitudinally extending slot through the wall thereof and opening into the upper end thereof; a hollow member mounted within said tubular member and having a laterally projecting hollow part extending through the slot in said tubular member, whereby said hollow member may be readily mounted in the tubular member before the latter is connected to the screen, the upper terminals of the elongated electrical resistance heating elements being mounted fluid tight in the lower wall of said hollow member and projecting into the interior of said member; a detachable fluid tight cover for said hollow member; a fluid tight electrical conductor-enclosing conduit secured at its lower end to the laterally projecting part of said hollow member and projecting upwardly therefrom; insulated electrical conductors extending through said conduit and each secured to one of said heating unit terminals within the hollow member;
  • a structure as set forth in claim 1 and in Which the means for sealing the u er end of the conduit about the cable comprises a threaded closure Welded to the upper end of the conduit and provided with a peripheral flange; a nut mounted on the threaded portion of said closure, a cable-connecting conduit having an inturned flange at its lower end clamped against the flange of said closure member by the nut; a length of armored cable extending into the upper end of said cable-connecting conduit, a connector mounted 'within said cable-connecting conduit connecting the conductors of said armored cable to the conductors secured to the electrical resistance heating units; and 'a packing gland arranged at the upper end of said cable-connecting conduit sealing the upper end thereof against the "armored cable.

Description

April 10, 1951 s. A. GERMAIN 2,548,360
ELECTRIC OIL WELL HEATER Original Filed May 8, 1942 I5 Sheets-Sheet 1 STANLEYA. GEE/MA/N,
INVENTOR ATTORNEY April 10, 1951 s. A. GERMAIN 2,548,360
ELECTRIC OIL WELL HEATER Original Filed May 8, 1942 3 Sheets-Sheet 2 6 M1 L 7% 7% W 6 l A A 7 A //& 7 m Wm W [E R W llllll o M & v H k r L7\ .M m m IY I L April 1951 s. A. GERMAIN 2, 8,360
ELECTRIC OIL WELL HEATER Original Filed May 8, 1942 3 Sheets-Sheet 3 STANLEYA. Gee/441 INVENTOR Patented Apr. 10, 1951 UNITED STATES PATENT OFFICE Substituted for abandoned application Serial No. 442,175, May 8, 1942. Thi application March 29, 1948, Serial No. 17,675
3 Claims.
Ihe present application is filed to take the place of abandoned application S. N. 442,175, filed May 8, 1942.
This invention comprehends the provision of an improved heater for oil wells for the same purpose of that shown in my pending application for patent filed May 6, 1939, Serial No. 272,203, issued March 17, 1942, as Patent No. 2,276,833, and contemplates the provision of an electric heater adapted to be lowered into the casing of a well and submerged in the oil in such a manner and to such eiTect that heavy gravity oil which is ordinarily incapable of being pumped from the well in its natural state, at least in sufiicient volume to render a well profitable or efiicient, may be heated and thereby thinned to a constituency capable of being pumped in full and profitable volume.
An object is to provide a mechanical pump structure which is particularly arranged to receive and support a special and novel form of electrical heating apparatus embodying a plurality of heating elements of special form and characteristics which, when connected with a source of electricity will not influence or disturb the operation of one or more of the elements in the event that another or others are broken or im paired, and, at the same time will permit of variations in any of the elements without affecting the others.
Another object is to provide an electric circuit including a multiple conductor cable, the conductors of which are surrounded by a conductor at ground potential for controlling the current supplied to the elements at a point common to all of the conductors of the cable.
It is an object also to provide an oil well heater embodying an electrical circuit in which the resistance characteristic is variable in such a manner as to provide greatly increasing resistance to the flow of current depending upon the temperature of the heating elements, together with means for varying the resistance in accordance with its temperature so as to avoid excessive temperatures in the elements by lowering the current flow by reason of the increased resistance corresponding to the higher temperatures. Also, in such case, the resistance characteristic is so established that it will prevent destructive temperatures in the elements.
A still further object is to provide in a heater of the character mentioned, means for insulating the heating elements of the system so as to divide the voltage applied to them and between them, and a common ground through the use of terminals encased in protective shields.
Another object is to provide means for individually varying the fiow of current in any of the heating elements fed by their respective conductors in order that the temperature of any one of the elements may be continuous and inherently adjusted for its individual indicated temperature condition without interference with the temperature effects of the remaining elements.
Other objects include: provision of means for varying the voltage applied to each of the heating elements independently of the variations in the external circuit; means for indicating the temperatures of resistance elements far below the surface of the earth by the employment of current indicating devices previously calibrated to the resistance of the heating elements and their resistance temperature characteristics while under normal load conditions.
Other objects will appear as the description of my invention progresses.
I have shown in the accompanying drawings a preferred form of oil well heater particularly adapted to carry out the purposes of my invention, subject to modification, within the scope of the appended claims, without departing from the spirit of my invention.
In said drawings:
Fig. 1 is a sectional elevation of an oil well with my improved apparatus operatively installed therein;
Fig. 2 is a sectional elevation of the uppermost unit of the apparatus as shown in Fig. 1 by means of which a multiple conductor cable from a point above the ground surface is operatively connected with the heater;
Fig. 3 shows a sectional elevation of the upper portion of the heater;
Fig. 4 is a sectional elevation of the lower portion of the heater;
Fig. 5 is a cross sectional view of the structure on line 5-5 of Fig. 2;
Fig. 6 is a cross sectional view of the same on line 65 of Fig. 3;
Fig. '7 is a cross sectional view on line 'l! of Fig. 3;
Fig. 8 is a cross sectional view on line 88 of Fig. 4; and
Fig. 9 is a circuit diagram of the heater and associated elements.
As shown in Figs. 1 and 2 a cable connecting unit A is suspended within the well casing B outwardly of the pump casing C and is formed of a plurality of axially alined and connected sections A1, A2, and A3. A cable D depending from the surface carriers a plurality of independently insulated conductors D1, D2, and D3 which are embedded in a thermoplastic body D4 covered exteriorly by means of a metal armor D5. That portion of the cable D which extends into the upper portion of section A1 of unit A, as at D6, is wiped or soldered with metal so as to provide a uniformly smooth periphery for the cable in order that its entrance to the section A1 may be suitably packed against leakage of water or oil. To
this end a conventional stumng box structure is provided at the upper end of section A1 and includes a compressible packing ring D1 seated in a bore D8 formed in the upper end of section A1 and a plug D9 threaded into the open end of section A1 and'adapted to compress the packing ring D1 around the portion D5 of the cable and between the end of plug D9 and bottom of bore D8 of section A1. I 7
Sections A1 and A2 are detachably secured together by means of a nipple A3 threaded into the lower end of section A1 so that adjacent ends of sections A1 and A2 will compress a copper and asbestos gasket A4 therebetween. Also at the joint between intermediate sections A1 and A2 I provide a stufiing box including a compressible packing ring A5 held in a bore As of section A2 adapted to b'e'compressed around a portion D10 of cable D by means of an adjustable plug A7 threaded into the nipple A3. Portion D10 of the cable is stripped of its armor from a point slightly below the packing ring D7 to its lower end as shown in Fig. 2. I Sections A2 and A3 are detachably connected, as shown in Fig. ,2, by means of a nipple A8 threaded into the upper end of section As, and this joint is r'endere'dleakproof by means of a copper and asbestos gasket A9, a packing ring A10 and a plug A11, arranged 111 a manner similar to the elements of the joint between sections A1 and A2, theportion D10 f the cable being extended through the ring A10 and plug A11.
Withinthe section A3 I provide a dielectric block E in which the conductors D1, D2, and D3 are inserted 'and held in tubular contacts E1 as by means of set screws E2, and in which contacts insulated wires F1, F2, and F3, 'are similarly held by means 'o'i set screws F4. The lower end of section As is closed by'in'ea'ns of a closure A12 which has a flangeAn overlying a copper and asbestos 1 washer A14 held against 'a shoulder A15. Closure A12 is threaded so to receive a nut A16 below the'lowr end of s'ection Asso that when the nut is tightened the lower "end of the section A3 will be leakproof. Wires F1, F2, and F3 are enclosed in steam conduit whichi'swelded at G1 and G2, respectively, to the upper and lower ends of the plug Ac. Wires F1, F2, and F3 are insulated apart and from the conduit G.
As shown in Fig. 3 the lower of conduit G is screwed into a nipple H and is welded at Hz to the upper end of said nipple. The lower end of said nipple is screwed into a projection H3 of a fiirture H and'li'as'a gasket Hi interposed between said nipple and said projection to render the joint leakproof. rirm'ren has a bottom Hrand a circular wall He, together with a passage H affording communication between the interior of the fixture and the portion H3 whereby wires F1, F2, and F3 may be ledinto the interior of the fixture for connection with terminals J1, J2 and J3, respectively, mounted on bottom H; of member H for connection with heating elements to be hereinafter described.
Member H is enclosed in an elongated sleeve K2 and the lateral projection H3 to which the conduit G is attached extends through an elongated peripheral slot K1. The upper end of sleeve K is closed by means of a coupling K2 which telescopes into thesleeve and is securely held by means of a plurality of screws K3. The upper end of closure K2 is reduced and extended into a pump nipple C1 while the lower end of said nipple is welded at K5 to said closure, as shown in Fig. 5. Closure K2 and the fixture H are detachably associated with the sleeve K for the purpose of assembly and disassembly of the parts, the slot K1 being open at the upper end of the sleeve so that said fixture may be readily moved into and from operative position in the sleeve, and the nipple and closure are also removable from the sleeve when the screws K3 are loosened. it will be noted that the upper end of the sleeve K has a plurality of recesses Ks which are adapted to be engaged by pins K7 for properly alining the nipple C1 and sleeve K.
Fixture H has a separate closure H7 which is threaded into the upper open end of a chamber H8 against a gasket H9 and may be provided with peripheral bores H10 preferably arranged with their axes on a diainetrical line so as to receive a spanner wrench by means of which the closure may be tightened so as to provide a leakproof joint. Inasmuch as chamber H6 is in constant communication with chamber H8 the closures H1 and 1-11 for said chambers, respectively, completely seal the chamber H3 against the entrance of air or moisture except such as may result from condensation of the latent air in conduit G.
It must be understood that while the terminals J1, J2, and J3 are insulated apart as well as from the bottom H4 of member H Within chamber Ha it is important that there should be no possibility of the presence of moisture in the vicinity of the exposed ends of the terminals. Hence, the moisture absorber is an extra though not always, a necessary precaution.
h The pump casing C is connected with the perforated inlet nipple C1 by means of a coupling C2 and, as shown in Fig. 1, said nipple is substantially below the level of oil in the well inorder that the oil whichi heated at points below the pump will be readily induced into the nipple for expulsion at a point above the surface.
The heaterproper includes a plurality (three in the form shown herein) of heating elements which are chosen because of certain characteristics whereby theyare subject to a variation of their inherent resistance to the flow of electric current therethroughin accordance with created temperatures. For instance, I have determined that a heater for the purpose of my invention should b ecap'able of normally and consistently maintaining atemperature of about 340 or more degrees Fahrenheit when submerged in oil of a well, and thatlower or higher temperatures will, respectively,decrease the eificiency of the heater and deteriorate theelements. Hence, I have ascertained that a modification of a certain element now inuse has what may be termed a thermostatic efiect and that asthe temperature thereof is approaching a predetermined point, depending upon the peculiar characteristics of the element in different cases,the resistance will vary to a sufiicient extent with temperature changes, so as to prevent an excessive temperature or rapidly reduce a prevailing temperature to a normal point.
have shown in Figs. 3 and 4, three of such elements connected in agrounded electrical circuit with a source of power from above the surface and suitably encased in a protective shell or housing. Said elements are indicated at L1, L2, and L3 and are connected at their upper ends, respectively, with the terminals, J1, J2, and J3. A perforated cas'ing or housing L4 encloses the elementsandyet by'means of the perforations L5 therein affords direct contact between the 011 of the well and the elements for heating purposes. The upper end of easing Li extends substantially into the bottom of sleeve K and preferably against the bottom H4 of fixture H. The casing is welded at L6 to sleeve K so as to remove possibility of leakage of oil from the casing into chamber H8 and thereby causing short circuiting of the terminals J1, J2, and J3.
Casing L4 is of substantial length and is connected at its lower end to a coupling L7 which, in turn, is connected with the upper end of a relatively short tubular section usually known in the art as a bull plug L8. Said member L8 is open at its bottom and is perforated throughout its length and serves to enclose the lower end of the heating elements L1, L2, and L3, as shown in Fig. 4.
A fixture L9 is loosely mounted within member L8 and has a cylindrical wall L10, a closed top web L11 and a detachable bottom closure L12 which is screwed into the lower end of the Wall L against a gasket L13 for the purpose of sealing a terminal chamber L14 within fixture L9 against the entrance of oil from the well.
Closure L12 is similar to closure H7 in that it is provided with wrench receiving bores L15. The lower ends of the heating elements L1, L2, and L; are attached to but insulated from the bottom L11 of fixture L9 and are connected with terminals M1, M2, and 1%, respectively, within chamber L14. The lower ends of the terminals support a contact plate L15 which is continuously in electrical contact with all of the elements of the system and also with a ground contact L16 attached to one of the heating element terminals and engaging the upper side of closure L12, for affording a common ground to all of the elements through the plate L15.
The parts of the heater unit illustrated in Fig. 4 are so formed that the assembly and disassembly thereof may be readily accomplished, particularly with respect to the outside diameter of fixture L9 and the inside diameter of protective casing L4, so that the heater unit when completely assembled may be inserted through casing L4 and into the lower member L8.
The oil well heater herein shown and described has peculiar characteristics and functions which have not in my knowledge been employed and Which are briefly defined as follows:
The employment of three separately controlled electrical circuits with but three single conductors and a ground connection, thereby permitting variations in any of the elements without disturbing the balance of the elements;
The connection of three or more elements of an electrical circuit in such a manner that they may be supplied with current by means of a multiple conductor cable and at the same time surrounded by a conductor at ground potential for controlling the current supplied to the elements at a point common to all;
The employment of resistance elements, the inherent characteristics of which adapt them to high variations in resistance in accordance with temperature changes and in which the resistance characteristics vary with temperature changes, thereby lowering the current flowing through the elements by reason of the increase of resistance in accordance With the temperature of the elements.
By means of the structure and electrical connections shown and described I am enabled to insulate the elements of the circuits so as to regulate and divide the voltage applied to the heating elements through the use of shielded and encased terminals.
The temperatures of the several elements being abled to indicate at the surface of the earth the prevailing temperature of any element Without the use of pilot wires, potential leads or other auxiliary circuits as well as a consequent interruption of the power circuit supplying the elements.
It will be apparent that all of the above effects and others result from the use of my heating apparatus, and especially when the heater is submerged in the oil of a well a particular feature consists in the arrangement and connections of the several heating elements with a source of current supply so that in the event any of the elements should become impaired the other elements would remain unaffected.
Now, with regard to the mechanical structure of my apparatus it may be mentioned that all of the units for operatively connecting the heater with a pump are separately assembled and the final assembly of all of said units is therefore accomplished with facility. All joints between parts of the units are sealed where necessary against possibility of leakage and other joints are formed so that certain parts may be readily assembled and disassembled. There is no possibility of short circuiting any of the lead in wires or elements because of the individual and group insulation of such wires and elements.
In operation the heater assembly is lowered into the well as shown in Fig. 1 to a point below the level of the oil in the well. When the heat generated in the heat penetrating structure by the heating elements becomes effective for thinning the oil of the well the oil is caused to flow and is exhausted from the well by means of the pump C in far greater volume and to greater profit than when a heater is not employed. Usually, it has been ascertained, the well production is more than doubled and generally always substantially increased over production without a heater,
I claim:
1. In oil well heaters incorporating elongated metal sheathed electrical resistance heating elements and supported from and below the screen tube of a submerged oil well pump, a structure comprising: an elongated tubular member detachably secured to the lower end of the pump screen and provided with a longitudinally extending slot through the wall thereof and opening into the upper end thereof; a hollow member mounted within said tubular member and having a laterally projecting hollow part extending through the slot in said tubular member, whereby said hollow member may be readily mounted in the tubular member before the latter is connected to the screen, the upper terminals of the elongated electrical resistance heating elements being mounted fluid tight in the lower wall of said hollow member and projecting into the interior of said member; a detachable fluid tight cover for said hollow member; a fluid tight electrical conductor-enclosing conduit secured at its lower end to the laterally projecting part of said hollow member and projecting upwardly therefrom; insulated electrical conductors extending through said conduit and each secured to one of said heating unit terminals within the hollow member; a cable leading electrical current to said conductors; and means effective to seal the upper end of 76 said conduit about the cable.
A structure as set forth in claim 1 and in Which the means for sealing the u er end of the conduit about the cable comprises a threaded closure Welded to the upper end of the conduit and provided with a peripheral flange; a nut mounted on the threaded portion of said closure, a cable-connecting conduit having an inturned flange at its lower end clamped against the flange of said closure member by the nut; a length of armored cable extending into the upper end of said cable-connecting conduit, a connector mounted 'within said cable-connecting conduit connecting the conductors of said armored cable to the conductors secured to the electrical resistance heating units; and 'a packing gland arranged at the upper end of said cable-connecting conduit sealing the upper end thereof against the "armored cable.
3. A structure as set forth in claim 1 and in addition comprising a fluid tight casing arranged within the end of said tubular member said end being perforated to allow circulation of oil therethrough and around the heating elements, the
8 lower ends of the metal sheathed resistance heating elements being secured in fluid tight relation in the upper Wall of said casing with the ends 'of the resistance e1ements projecting into said casing; a removable plug of conductive material closing the lower end of said casing; and spring finger means grounding the resistance elements to said casing and thereby to the pump casing.
STANLEY -A. GERMAIN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,535,776 Hollister Apr. 28, 1925 1,646,599 Schaefer Oct, 25, 1 927 1,864,960 Ta'y1or June 28, 1-932 2,134,610 Hogg Oct. "25, 1938 2,233,890 l-Ioo'ver Mar. 4, 1 941 2,276,833 Germain Mar. 1'7, 1942
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Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632836A (en) * 1949-11-08 1953-03-24 Thermactor Company Oil well heater
US2647196A (en) * 1950-11-06 1953-07-28 Union Oil Co Apparatus for heating oil wells
US2703621A (en) * 1953-05-04 1955-03-08 George W Ford Oil well bottom hole flow increasing unit
US2738409A (en) * 1953-08-26 1956-03-13 Hyman D Bowman Heating apparatus
US2750487A (en) * 1952-08-12 1956-06-12 Turbine Equipment Company Electric heater
US2881301A (en) * 1957-11-07 1959-04-07 Hyman D Bowman Fluid heater
US3026940A (en) * 1958-05-19 1962-03-27 Electronic Oil Well Heater Inc Oil well temperature indicator and control
US3101116A (en) * 1961-04-04 1963-08-20 Electronic Oil Well Heater Inc Bottom hole jet heater
US3341688A (en) * 1964-05-12 1967-09-12 American Thermoelectric Corp Oil well heating apparatus
US6269876B1 (en) * 1998-03-06 2001-08-07 Shell Oil Company Electrical heater
WO2001081722A1 (en) 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. A method for treating a hydrocarbon-containing formation
WO2001083940A1 (en) 2000-04-24 2001-11-08 Shell Internationale Research Maatschappij B.V. Electrical well heating system and method
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030098605A1 (en) * 2001-04-24 2003-05-29 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US20030196810A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. Treatment of a hydrocarbon containing formation after heating
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US20040144541A1 (en) * 2002-10-24 2004-07-29 Picha Mark Gregory Forming wellbores using acoustic methods
US20050051341A1 (en) * 2003-08-05 2005-03-10 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
WO2005106195A1 (en) 2004-04-23 2005-11-10 Shell Internationale Research Maatschappij B.V. Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US20060051080A1 (en) * 2002-07-22 2006-03-09 Michael Ray Carr Oilfield tool annulus heater
US7011154B2 (en) 2000-04-24 2006-03-14 Shell Oil Company In situ recovery from a kerogen and liquid hydrocarbon containing formation
US7090013B2 (en) 2001-10-24 2006-08-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7104319B2 (en) 2001-10-24 2006-09-12 Shell Oil Company In situ thermal processing of a heavy oil diatomite formation
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
WO2006116078A1 (en) 2005-04-22 2006-11-02 Shell Internationale Research Maatschappij B.V. Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US20070045267A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Subsurface connection methods for subsurface heaters
US20070095536A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Cogeneration systems and processes for treating hydrocarbon containing formations
US20070199698A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Steam Injection of Oil Sand Formations
US20070199702A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By In Situ Combustion of Oil Sand Formations
US20070199712A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by steam injection of oil sand formations
US20070199699A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Vaporizing Solvents in Oil Sand Formations
US20070199701A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Ehanced hydrocarbon recovery by in situ combustion of oil sand formations
US20070199700A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by in situ combustion of oil sand formations
US20070199707A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Convective Heating of Oil Sand Formations
US20070199704A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments
US20070199697A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by steam injection of oil sand formations
US20070199708A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments
US20070199710A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by convective heating of oil sand formations
US20070199711A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
US20070199695A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments
US20070199706A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by convective heating of oil sand formations
US20070199713A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
US20070199705A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
US20080035705A1 (en) * 2006-04-21 2008-02-14 Menotti James L Welding shield for coupling heaters
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US20090101347A1 (en) * 2006-02-27 2009-04-23 Schultz Roger L Thermal recovery of shallow bitumen through increased permeability inclusions
US7552762B2 (en) 2003-08-05 2009-06-30 Stream-Flo Industries Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20100089584A1 (en) * 2008-10-13 2010-04-15 David Booth Burns Double insulated heaters for treating subsurface formations
US20100252261A1 (en) * 2007-12-28 2010-10-07 Halliburton Energy Services, Inc. Casing deformation and control for inclusion propagation
US20100258309A1 (en) * 2009-04-10 2010-10-14 Oluropo Rufus Ayodele Heater assisted fluid treatment of a subsurface formation
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US8955585B2 (en) 2011-09-27 2015-02-17 Halliburton Energy Services, Inc. Forming inclusions in selected azimuthal orientations from a casing section
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation
US10125589B2 (en) 2016-05-27 2018-11-13 Board Of Regents Of The University Of Texas System Downhole induction heater and coupling system for oil and gas wells
US10370949B2 (en) 2015-09-23 2019-08-06 Conocophillips Company Thermal conditioning of fishbone well configurations
US11655697B2 (en) 2014-01-31 2023-05-23 Green Chemistry Energy Llc Method and system for subsurface resource production
US11927076B2 (en) 2022-07-19 2024-03-12 Salamander Ip Holdings Llc Gas condensate removal heating system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535776A (en) * 1922-07-13 1925-04-28 James B Pauley Oil-well heater
US1646599A (en) * 1925-04-30 1927-10-25 George A Schaefer Apparatus for removing fluid from wells
US1864960A (en) * 1928-01-28 1932-06-28 Horace R Allen Oil well heater
US2134610A (en) * 1937-04-26 1938-10-25 Coy C Hogg Oil-bearing sand heater
US2233890A (en) * 1937-12-08 1941-03-04 Byron Jackson Co Eccentric suspension and cable connection for submersible motor pumps
US2276833A (en) * 1939-05-06 1942-03-17 Stanley A Germain Electric heater for oil wells

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535776A (en) * 1922-07-13 1925-04-28 James B Pauley Oil-well heater
US1646599A (en) * 1925-04-30 1927-10-25 George A Schaefer Apparatus for removing fluid from wells
US1864960A (en) * 1928-01-28 1932-06-28 Horace R Allen Oil well heater
US2134610A (en) * 1937-04-26 1938-10-25 Coy C Hogg Oil-bearing sand heater
US2233890A (en) * 1937-12-08 1941-03-04 Byron Jackson Co Eccentric suspension and cable connection for submersible motor pumps
US2276833A (en) * 1939-05-06 1942-03-17 Stanley A Germain Electric heater for oil wells

Cited By (492)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632836A (en) * 1949-11-08 1953-03-24 Thermactor Company Oil well heater
US2647196A (en) * 1950-11-06 1953-07-28 Union Oil Co Apparatus for heating oil wells
US2750487A (en) * 1952-08-12 1956-06-12 Turbine Equipment Company Electric heater
US2703621A (en) * 1953-05-04 1955-03-08 George W Ford Oil well bottom hole flow increasing unit
US2738409A (en) * 1953-08-26 1956-03-13 Hyman D Bowman Heating apparatus
US2881301A (en) * 1957-11-07 1959-04-07 Hyman D Bowman Fluid heater
US3026940A (en) * 1958-05-19 1962-03-27 Electronic Oil Well Heater Inc Oil well temperature indicator and control
US3101116A (en) * 1961-04-04 1963-08-20 Electronic Oil Well Heater Inc Bottom hole jet heater
US3341688A (en) * 1964-05-12 1967-09-12 American Thermoelectric Corp Oil well heating apparatus
US6269876B1 (en) * 1998-03-06 2001-08-07 Shell Oil Company Electrical heater
US6789625B2 (en) 2000-04-24 2004-09-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources
WO2001081722A1 (en) 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. A method for treating a hydrocarbon-containing formation
WO2001081720A1 (en) 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery of hydrocarbons from a kerogen-containing formation
WO2001083940A1 (en) 2000-04-24 2001-11-08 Shell Internationale Research Maatschappij B.V. Electrical well heating system and method
US20020040778A1 (en) * 2000-04-24 2002-04-11 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US20020046883A1 (en) * 2000-04-24 2002-04-25 Wellington Scott Lee In situ thermal processing of a coal formation using pressure and/or temperature control
US20020076212A1 (en) * 2000-04-24 2002-06-20 Etuan Zhang In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons
US20090101346A1 (en) * 2000-04-24 2009-04-23 Shell Oil Company, Inc. In situ recovery from a hydrocarbon containing formation
US7798221B2 (en) 2000-04-24 2010-09-21 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7096941B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
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US7086468B2 (en) 2000-04-24 2006-08-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US7036583B2 (en) 2000-04-24 2006-05-02 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US7017661B2 (en) 2000-04-24 2006-03-28 Shell Oil Company Production of synthesis gas from a coal formation
US7011154B2 (en) 2000-04-24 2006-03-14 Shell Oil Company In situ recovery from a kerogen and liquid hydrocarbon containing formation
US6997255B2 (en) 2000-04-24 2006-02-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation in a reducing environment
US6581684B2 (en) 2000-04-24 2003-06-24 Shell Oil Company In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US6994168B2 (en) 2000-04-24 2006-02-07 Scott Lee Wellington In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6994161B2 (en) 2000-04-24 2006-02-07 Kevin Albert Maher In situ thermal processing of a coal formation with a selected moisture content
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US6763886B2 (en) 2000-04-24 2004-07-20 Shell Oil Company In situ thermal processing of a coal formation with carbon dioxide sequestration
US6805195B2 (en) 2000-04-24 2004-10-19 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas
US6769483B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
US6769485B2 (en) 2000-04-24 2004-08-03 Shell Oil Company In situ production of synthesis gas from a coal formation through a heat source wellbore
US20040211554A1 (en) * 2001-04-24 2004-10-28 Vinegar Harold J. Heat sources with conductive material for in situ thermal processing of an oil shale formation
US20030131996A1 (en) * 2001-04-24 2003-07-17 Vinegar Harold J. In situ thermal processing of an oil shale formation having permeable and impermeable sections
US20040211557A1 (en) * 2001-04-24 2004-10-28 Cole Anthony Thomas Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US7225866B2 (en) 2001-04-24 2007-06-05 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030209348A1 (en) * 2001-04-24 2003-11-13 Ward John Michael In situ thermal processing and remediation of an oil shale formation
US7735935B2 (en) 2001-04-24 2010-06-15 Shell Oil Company In situ thermal processing of an oil shale formation containing carbonate minerals
US6877555B2 (en) 2001-04-24 2005-04-12 Shell Oil Company In situ thermal processing of an oil shale formation while inhibiting coking
US20030098605A1 (en) * 2001-04-24 2003-05-29 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation
US6880633B2 (en) 2001-04-24 2005-04-19 Shell Oil Company In situ thermal processing of an oil shale formation to produce a desired product
US20030098149A1 (en) * 2001-04-24 2003-05-29 Wellington Scott Lee In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US20030100451A1 (en) * 2001-04-24 2003-05-29 Messier Margaret Ann In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US7096942B1 (en) 2001-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a relatively permeable formation while controlling pressure
US20030102126A1 (en) * 2001-04-24 2003-06-05 Sumnu-Dindoruk Meliha Deniz In situ thermal recovery from a relatively permeable formation with controlled production rate
US20030173078A1 (en) * 2001-04-24 2003-09-18 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a condensate
US7066254B2 (en) 2001-04-24 2006-06-27 Shell Oil Company In situ thermal processing of a tar sands formation
US20030164239A1 (en) * 2001-04-24 2003-09-04 Wellington Scott Lee In situ thermal processing of an oil shale formation in a reducing environment
US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
US6915850B2 (en) 2001-04-24 2005-07-12 Shell Oil Company In situ thermal processing of an oil shale formation having permeable and impermeable sections
US6918443B2 (en) 2001-04-24 2005-07-19 Shell Oil Company In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US6918442B2 (en) 2001-04-24 2005-07-19 Shell Oil Company In situ thermal processing of an oil shale formation in a reducing environment
US20030146002A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. Removable heat sources for in situ thermal processing of an oil shale formation
US6923257B2 (en) 2001-04-24 2005-08-02 Shell Oil Company In situ thermal processing of an oil shale formation to produce a condensate
US6929067B2 (en) 2001-04-24 2005-08-16 Shell Oil Company Heat sources with conductive material for in situ thermal processing of an oil shale formation
US7055600B2 (en) 2001-04-24 2006-06-06 Shell Oil Company In situ thermal recovery from a relatively permeable formation with controlled production rate
US6948562B2 (en) 2001-04-24 2005-09-27 Shell Oil Company Production of a blending agent using an in situ thermal process in a relatively permeable formation
US20030148894A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. In situ thermal processing of an oil shale formation using a natural distributed combustor
US6951247B2 (en) 2001-04-24 2005-10-04 Shell Oil Company In situ thermal processing of an oil shale formation using horizontal heat sources
US20030141068A1 (en) * 2001-04-24 2003-07-31 Pierre De Rouffignac Eric In situ thermal processing through an open wellbore in an oil shale formation
US20030142964A1 (en) * 2001-04-24 2003-07-31 Wellington Scott Lee In situ thermal processing of an oil shale formation using a controlled heating rate
US20030141066A1 (en) * 2001-04-24 2003-07-31 Karanikas John Michael In situ thermal processing of an oil shale formation while inhibiting coking
US6964300B2 (en) 2001-04-24 2005-11-15 Shell Oil Company In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030141067A1 (en) * 2001-04-24 2003-07-31 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation to increase permeability of the formation
US6966374B2 (en) 2001-04-24 2005-11-22 Shell Oil Company In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US7051807B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal recovery from a relatively permeable formation with quality control
US7051811B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal processing through an open wellbore in an oil shale formation
US7040398B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively permeable formation in a reducing environment
US20030136558A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a desired product
US7040399B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of an oil shale formation using a controlled heating rate
US20030136559A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing while controlling pressure in an oil shale formation
US7040400B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively impermeable formation using an open wellbore
US7040397B2 (en) 2001-04-24 2006-05-09 Shell Oil Company Thermal processing of an oil shale formation to increase permeability of the formation
US20030102125A1 (en) * 2001-04-24 2003-06-05 Wellington Scott Lee In situ thermal processing of a relatively permeable formation in a reducing environment
US20030131994A1 (en) * 2001-04-24 2003-07-17 Vinegar Harold J. In situ thermal processing and solution mining of an oil shale formation
US7032660B2 (en) 2001-04-24 2006-04-25 Shell Oil Company In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030131993A1 (en) * 2001-04-24 2003-07-17 Etuan Zhang In situ thermal processing of an oil shale formation with a selected property
US6981548B2 (en) 2001-04-24 2006-01-03 Shell Oil Company In situ thermal recovery from a relatively permeable formation
US20100270015A1 (en) * 2001-04-24 2010-10-28 Shell Oil Company In situ thermal processing of an oil shale formation
US6991032B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030131995A1 (en) * 2001-04-24 2003-07-17 De Rouffignac Eric Pierre In situ thermal processing of a relatively impermeable formation to increase permeability of the formation
US6991036B2 (en) 2001-04-24 2006-01-31 Shell Oil Company Thermal processing of a relatively permeable formation
US6991033B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing while controlling pressure in an oil shale formation
US20030102124A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal processing of a blending agent from a relatively permeable formation
US7013972B2 (en) 2001-04-24 2006-03-21 Shell Oil Company In situ thermal processing of an oil shale formation using a natural distributed combustor
US6994169B2 (en) 2001-04-24 2006-02-07 Shell Oil Company In situ thermal processing of an oil shale formation with a selected property
US20030130136A1 (en) * 2001-04-24 2003-07-10 Rouffignac Eric Pierre De In situ thermal processing of a relatively impermeable formation using an open wellbore
US20030116315A1 (en) * 2001-04-24 2003-06-26 Wellington Scott Lee In situ thermal processing of a relatively permeable formation
US20030111223A1 (en) * 2001-04-24 2003-06-19 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation using horizontal heat sources
US6997518B2 (en) 2001-04-24 2006-02-14 Shell Oil Company In situ thermal processing and solution mining of an oil shale formation
US7004251B2 (en) 2001-04-24 2006-02-28 Shell Oil Company In situ thermal processing and remediation of an oil shale formation
US7004247B2 (en) 2001-04-24 2006-02-28 Shell Oil Company Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US20030102130A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation with quality control
US20030196810A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. Treatment of a hydrocarbon containing formation after heating
US7156176B2 (en) 2001-10-24 2007-01-02 Shell Oil Company Installation and use of removable heaters in a hydrocarbon containing formation
US6991045B2 (en) 2001-10-24 2006-01-31 Shell Oil Company Forming openings in a hydrocarbon containing formation using magnetic tracking
US20070209799A1 (en) * 2001-10-24 2007-09-13 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20050092483A1 (en) * 2001-10-24 2005-05-05 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US20040040715A1 (en) * 2001-10-24 2004-03-04 Wellington Scott Lee In situ production of a blending agent from a hydrocarbon containing formation
US7461691B2 (en) 2001-10-24 2008-12-09 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US20030205378A1 (en) * 2001-10-24 2003-11-06 Wellington Scott Lee In situ recovery from lean and rich zones in a hydrocarbon containing formation
US7051808B1 (en) 2001-10-24 2006-05-30 Shell Oil Company Seismic monitoring of in situ conversion in a hydrocarbon containing formation
US8627887B2 (en) 2001-10-24 2014-01-14 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US6969123B2 (en) 2001-10-24 2005-11-29 Shell Oil Company Upgrading and mining of coal
US6932155B2 (en) 2001-10-24 2005-08-23 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US7063145B2 (en) 2001-10-24 2006-06-20 Shell Oil Company Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US7066257B2 (en) 2001-10-24 2006-06-27 Shell Oil Company In situ recovery from lean and rich zones in a hydrocarbon containing formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US20030201098A1 (en) * 2001-10-24 2003-10-30 Karanikas John Michael In situ recovery from a hydrocarbon containing formation using one or more simulations
US20030196801A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US7077198B2 (en) * 2001-10-24 2006-07-18 Shell Oil Company In situ recovery from a hydrocarbon containing formation using barriers
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US7086465B2 (en) 2001-10-24 2006-08-08 Shell Oil Company In situ production of a blending agent from a hydrocarbon containing formation
US7090013B2 (en) 2001-10-24 2006-08-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US7128153B2 (en) 2001-10-24 2006-10-31 Shell Oil Company Treatment of a hydrocarbon containing formation after heating
US7114566B2 (en) 2001-10-24 2006-10-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US7077199B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ thermal processing of an oil reservoir formation
US7100994B2 (en) 2001-10-24 2006-09-05 Shell Oil Company Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
US7104319B2 (en) 2001-10-24 2006-09-12 Shell Oil Company In situ thermal processing of a heavy oil diatomite formation
US20060051080A1 (en) * 2002-07-22 2006-03-09 Michael Ray Carr Oilfield tool annulus heater
US7073578B2 (en) 2002-10-24 2006-07-11 Shell Oil Company Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US7121341B2 (en) 2002-10-24 2006-10-17 Shell Oil Company Conductor-in-conduit temperature limited heaters
US8238730B2 (en) 2002-10-24 2012-08-07 Shell Oil Company High voltage temperature limited heaters
US7219734B2 (en) 2002-10-24 2007-05-22 Shell Oil Company Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US8224164B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Insulated conductor temperature limited heaters
US8224163B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Variable frequency temperature limited heaters
US20040144541A1 (en) * 2002-10-24 2004-07-29 Picha Mark Gregory Forming wellbores using acoustic methods
US8579031B2 (en) 2003-04-24 2013-11-12 Shell Oil Company Thermal processes for subsurface formations
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
US7640980B2 (en) 2003-04-24 2010-01-05 Shell Oil Company Thermal processes for subsurface formations
US7360588B2 (en) 2003-04-24 2008-04-22 Shell Oil Company Thermal processes for subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US7918271B2 (en) 2003-08-05 2011-04-05 Stream-Flo Industries Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20050051341A1 (en) * 2003-08-05 2005-03-10 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US7410002B2 (en) 2003-08-05 2008-08-12 Stream-Flo Industries, Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US20090260833A1 (en) * 2003-08-05 2009-10-22 Stream-Flo Industries, Ltd. Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device
US7552762B2 (en) 2003-08-05 2009-06-30 Stream-Flo Industries Ltd. Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
US7353872B2 (en) 2004-04-23 2008-04-08 Shell Oil Company Start-up of temperature limited heaters using direct current (DC)
US20050269094A1 (en) * 2004-04-23 2005-12-08 Harris Christopher K Triaxial temperature limited heater
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US20050269091A1 (en) * 2004-04-23 2005-12-08 Guillermo Pastor-Sanz Reducing viscosity of oil for production from a hydrocarbon containing formation
US20050269090A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7424915B2 (en) 2004-04-23 2008-09-16 Shell Oil Company Vacuum pumping of conductor-in-conduit heaters
US20050269093A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Variable frequency temperature limited heaters
US20060005968A1 (en) * 2004-04-23 2006-01-12 Vinegar Harold J Temperature limited heaters with relatively constant current
WO2005106195A1 (en) 2004-04-23 2005-11-10 Shell Internationale Research Maatschappij B.V. Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7431076B2 (en) 2004-04-23 2008-10-07 Shell Oil Company Temperature limited heaters using modulated DC power
US7383877B2 (en) 2004-04-23 2008-06-10 Shell Oil Company Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US20050269089A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Temperature limited heaters using modulated DC power
US7370704B2 (en) 2004-04-23 2008-05-13 Shell Oil Company Triaxial temperature limited heater
US20050269095A1 (en) * 2004-04-23 2005-12-08 Fairbanks Michael D Inhibiting reflux in a heated well of an in situ conversion system
US20050269077A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Start-up of temperature limited heaters using direct current (DC)
US7357180B2 (en) 2004-04-23 2008-04-15 Shell Oil Company Inhibiting effects of sloughing in wellbores
US20060289536A1 (en) * 2004-04-23 2006-12-28 Vinegar Harold J Subsurface electrical heaters using nitride insulation
US20050269092A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Vacuum pumping of conductor-in-conduit heaters
US7481274B2 (en) 2004-04-23 2009-01-27 Shell Oil Company Temperature limited heaters with relatively constant current
US20050269088A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Inhibiting effects of sloughing in wellbores
US20050269313A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with high power factors
US7490665B2 (en) 2004-04-23 2009-02-17 Shell Oil Company Variable frequency temperature limited heaters
US7320364B2 (en) 2004-04-23 2008-01-22 Shell Oil Company Inhibiting reflux in a heated well of an in situ conversion system
US7510000B2 (en) 2004-04-23 2009-03-31 Shell Oil Company Reducing viscosity of oil for production from a hydrocarbon containing formation
US7831134B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Grouped exposed metal heaters
US20070108201A1 (en) * 2005-04-22 2007-05-17 Vinegar Harold J Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US8027571B2 (en) 2005-04-22 2011-09-27 Shell Oil Company In situ conversion process systems utilizing wellbores in at least two regions of a formation
US8070840B2 (en) 2005-04-22 2011-12-06 Shell Oil Company Treatment of gas from an in situ conversion process
US20070045265A1 (en) * 2005-04-22 2007-03-01 Mckinzie Billy J Ii Low temperature barriers with heat interceptor wells for in situ processes
US20070119098A1 (en) * 2005-04-22 2007-05-31 Zaida Diaz Treatment of gas from an in situ conversion process
US7500528B2 (en) 2005-04-22 2009-03-10 Shell Oil Company Low temperature barrier wellbores formed using water flushing
US7527094B2 (en) 2005-04-22 2009-05-05 Shell Oil Company Double barrier system for an in situ conversion process
US7942197B2 (en) 2005-04-22 2011-05-17 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US7546873B2 (en) 2005-04-22 2009-06-16 Shell Oil Company Low temperature barriers for use with in situ processes
US20070045266A1 (en) * 2005-04-22 2007-03-01 Sandberg Chester L In situ conversion process utilizing a closed loop heating system
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US20070045268A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Varying properties along lengths of temperature limited heaters
US20070108200A1 (en) * 2005-04-22 2007-05-17 Mckinzie Billy J Ii Low temperature barrier wellbores formed using water flushing
US7860377B2 (en) 2005-04-22 2010-12-28 Shell Oil Company Subsurface connection methods for subsurface heaters
US7986869B2 (en) 2005-04-22 2011-07-26 Shell Oil Company Varying properties along lengths of temperature limited heaters
US7831133B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US20070144732A1 (en) * 2005-04-22 2007-06-28 Kim Dong S Low temperature barriers for use with in situ processes
US20070137856A1 (en) * 2005-04-22 2007-06-21 Mckinzie Billy J Double barrier system for an in situ conversion process
US7435037B2 (en) 2005-04-22 2008-10-14 Shell Oil Company Low temperature barriers with heat interceptor wells for in situ processes
US20070133961A1 (en) * 2005-04-22 2007-06-14 Fairbanks Michael D Methods and systems for producing fluid from an in situ conversion process
US20070133960A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J In situ conversion process systems utilizing wellbores in at least two regions of a formation
US20070133959A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J Grouped exposed metal heaters
US7575053B2 (en) 2005-04-22 2009-08-18 Shell Oil Company Low temperature monitoring system for subsurface barriers
US7575052B2 (en) 2005-04-22 2009-08-18 Shell Oil Company In situ conversion process utilizing a closed loop heating system
WO2006116078A1 (en) 2005-04-22 2006-11-02 Shell Internationale Research Maatschappij B.V. Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US8230927B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US20080217321A1 (en) * 2005-04-22 2008-09-11 Vinegar Harold J Temperature limited heater utilizing non-ferromagnetic conductor
US8233782B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Grouped exposed metal heaters
US20070045267A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Subsurface connection methods for subsurface heaters
WO2006116097A1 (en) 2005-04-22 2006-11-02 Shell Internationale Research Maatschappij B.V. Temperature limited heater utilizing non-ferromagnetic conductor
US7562706B2 (en) 2005-10-24 2009-07-21 Shell Oil Company Systems and methods for producing hydrocarbons from tar sands formations
US20110168394A1 (en) * 2005-10-24 2011-07-14 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070095536A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Cogeneration systems and processes for treating hydrocarbon containing formations
US7635025B2 (en) 2005-10-24 2009-12-22 Shell Oil Company Cogeneration systems and processes for treating hydrocarbon containing formations
US20070127897A1 (en) * 2005-10-24 2007-06-07 John Randy C Subsurface heaters with low sulfidation rates
US20090301724A1 (en) * 2005-10-24 2009-12-10 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070125533A1 (en) * 2005-10-24 2007-06-07 Minderhoud Johannes K Methods of hydrotreating a liquid stream to remove clogging compounds
US20070131428A1 (en) * 2005-10-24 2007-06-14 Willem Cornelis Den Boestert J Methods of filtering a liquid stream produced from an in situ heat treatment process
US8606091B2 (en) 2005-10-24 2013-12-10 Shell Oil Company Subsurface heaters with low sulfidation rates
US20070131420A1 (en) * 2005-10-24 2007-06-14 Weijian Mo Methods of cracking a crude product to produce additional crude products
US7591310B2 (en) 2005-10-24 2009-09-22 Shell Oil Company Methods of hydrotreating a liquid stream to remove clogging compounds
US7584789B2 (en) 2005-10-24 2009-09-08 Shell Oil Company Methods of cracking a crude product to produce additional crude products
US20080107577A1 (en) * 2005-10-24 2008-05-08 Vinegar Harold J Varying heating in dawsonite zones in hydrocarbon containing formations
US7581589B2 (en) 2005-10-24 2009-09-01 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070131427A1 (en) * 2005-10-24 2007-06-14 Ruijian Li Systems and methods for producing hydrocarbons from tar sands formations
US20070131419A1 (en) * 2005-10-24 2007-06-14 Maria Roes Augustinus W Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070131415A1 (en) * 2005-10-24 2007-06-14 Vinegar Harold J Solution mining and heating by oxidation for treating hydrocarbon containing formations
US7559368B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Solution mining systems and methods for treating hydrocarbon containing formations
US20070221377A1 (en) * 2005-10-24 2007-09-27 Vinegar Harold J Solution mining systems and methods for treating hydrocarbon containing formations
US7559367B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Temperature limited heater with a conduit substantially electrically isolated from the formation
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
US7556096B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Varying heating in dawsonite zones in hydrocarbon containing formations
US7556095B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
US7549470B2 (en) 2005-10-24 2009-06-23 Shell Oil Company Solution mining and heating by oxidation for treating hydrocarbon containing formations
US20070199705A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
US20070199702A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By In Situ Combustion of Oil Sand Formations
US20070199695A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments
US20070199713A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
US20070199711A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
US7520325B2 (en) 2006-02-27 2009-04-21 Geosierra Llc Enhanced hydrocarbon recovery by in situ combustion of oil sand formations
US20070199710A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by convective heating of oil sand formations
US20090101347A1 (en) * 2006-02-27 2009-04-23 Schultz Roger L Thermal recovery of shallow bitumen through increased permeability inclusions
US20070199708A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments
US20070199697A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by steam injection of oil sand formations
US7748458B2 (en) 2006-02-27 2010-07-06 Geosierra Llc Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
US20070199704A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments
US20070199707A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Convective Heating of Oil Sand Formations
US20090145606A1 (en) * 2006-02-27 2009-06-11 Grant Hocking Enhanced Hydrocarbon Recovery By Steam Injection of Oil Sand FOrmations
US20070199700A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by in situ combustion of oil sand formations
US7604054B2 (en) 2006-02-27 2009-10-20 Geosierra Llc Enhanced hydrocarbon recovery by convective heating of oil sand formations
US20070199701A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Ehanced hydrocarbon recovery by in situ combustion of oil sand formations
US8151874B2 (en) 2006-02-27 2012-04-10 Halliburton Energy Services, Inc. Thermal recovery of shallow bitumen through increased permeability inclusions
US7404441B2 (en) 2006-02-27 2008-07-29 Geosierra, Llc Hydraulic feature initiation and propagation control in unconsolidated and weakly cemented sediments
US8863840B2 (en) 2006-02-27 2014-10-21 Halliburton Energy Services, Inc. Thermal recovery of shallow bitumen through increased permeability inclusions
US7591306B2 (en) 2006-02-27 2009-09-22 Geosierra Llc Enhanced hydrocarbon recovery by steam injection of oil sand formations
US20070199699A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Vaporizing Solvents in Oil Sand Formations
US20100276147A9 (en) * 2006-02-27 2010-11-04 Grant Hocking Enhanced Hydrocarbon Recovery By Steam Injection of Oil Sand FOrmations
US7870904B2 (en) 2006-02-27 2011-01-18 Geosierra Llc Enhanced hydrocarbon recovery by steam injection of oil sand formations
US7866395B2 (en) 2006-02-27 2011-01-11 Geosierra Llc Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments
US20070199698A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced Hydrocarbon Recovery By Steam Injection of Oil Sand Formations
US20070199712A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by steam injection of oil sand formations
US20070199706A1 (en) * 2006-02-27 2007-08-30 Grant Hocking Enhanced hydrocarbon recovery by convective heating of oil sand formations
US7604052B2 (en) 2006-04-21 2009-10-20 Shell Oil Company Compositions produced using an in situ heat treatment process
US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US7866385B2 (en) 2006-04-21 2011-01-11 Shell Oil Company Power systems utilizing the heat of produced formation fluid
US20080038144A1 (en) * 2006-04-21 2008-02-14 Maziasz Phillip J High strength alloys
US20080035346A1 (en) * 2006-04-21 2008-02-14 Vijay Nair Methods of producing transportation fuel
US20080035347A1 (en) * 2006-04-21 2008-02-14 Brady Michael P Adjusting alloy compositions for selected properties in temperature limited heaters
US20080035348A1 (en) * 2006-04-21 2008-02-14 Vitek John M Temperature limited heaters using phase transformation of ferromagnetic material
WO2008060668A2 (en) 2006-04-21 2008-05-22 Shell Oil Company Temperature limited heaters using phase transformation of ferromagnetic material
US20080035705A1 (en) * 2006-04-21 2008-02-14 Menotti James L Welding shield for coupling heaters
US8192682B2 (en) 2006-04-21 2012-06-05 Shell Oil Company High strength alloys
US7597147B2 (en) 2006-04-21 2009-10-06 Shell Oil Company Temperature limited heaters using phase transformation of ferromagnetic material
US8083813B2 (en) 2006-04-21 2011-12-27 Shell Oil Company Methods of producing transportation fuel
US20100272595A1 (en) * 2006-04-21 2010-10-28 Shell Oil Company High strength alloys
US7912358B2 (en) 2006-04-21 2011-03-22 Shell Oil Company Alternate energy source usage for in situ heat treatment processes
US20080173449A1 (en) * 2006-04-21 2008-07-24 Thomas David Fowler Sour gas injection for use with in situ heat treatment
US7793722B2 (en) 2006-04-21 2010-09-14 Shell Oil Company Non-ferromagnetic overburden casing
US7610962B2 (en) 2006-04-21 2009-11-03 Shell Oil Company Sour gas injection for use with in situ heat treatment
US7785427B2 (en) 2006-04-21 2010-08-31 Shell Oil Company High strength alloys
US7533719B2 (en) 2006-04-21 2009-05-19 Shell Oil Company Wellhead with non-ferromagnetic materials
US20080173442A1 (en) * 2006-04-21 2008-07-24 Vinegar Harold J Sulfur barrier for use with in situ processes for treating formations
US20080173444A1 (en) * 2006-04-21 2008-07-24 Francis Marion Stone Alternate energy source usage for in situ heat treatment processes
US20080174115A1 (en) * 2006-04-21 2008-07-24 Gene Richard Lambirth Power systems utilizing the heat of produced formation fluid
US7631689B2 (en) 2006-04-21 2009-12-15 Shell Oil Company Sulfur barrier for use with in situ processes for treating formations
US7635023B2 (en) 2006-04-21 2009-12-22 Shell Oil Company Time sequenced heating of multiple layers in a hydrocarbon containing formation
US7683296B2 (en) 2006-04-21 2010-03-23 Shell Oil Company Adjusting alloy compositions for selected properties in temperature limited heaters
US20080173450A1 (en) * 2006-04-21 2008-07-24 Bernard Goldberg Time sequenced heating of multiple layers in a hydrocarbon containing formation
US8857506B2 (en) 2006-04-21 2014-10-14 Shell Oil Company Alternate energy source usage methods for in situ heat treatment processes
US7681647B2 (en) 2006-10-20 2010-03-23 Shell Oil Company Method of producing drive fluid in situ in tar sands formations
US20100276141A1 (en) * 2006-10-20 2010-11-04 Shell Oil Company Creating fluid injectivity in tar sands formations
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US7673681B2 (en) 2006-10-20 2010-03-09 Shell Oil Company Treating tar sands formations with karsted zones
US7677310B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Creating and maintaining a gas cap in tar sands formations
US7677314B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Method of condensing vaporized water in situ to treat tar sands formations
US7635024B2 (en) 2006-10-20 2009-12-22 Shell Oil Company Heating tar sands formations to visbreaking temperatures
US7631690B2 (en) 2006-10-20 2009-12-15 Shell Oil Company Heating hydrocarbon containing formations in a spiral startup staged sequence
US20080135253A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J Treating tar sands formations with karsted zones
US20080135244A1 (en) * 2006-10-20 2008-06-12 David Scott Miller Heating hydrocarbon containing formations in a line drive staged process
US20080135254A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J In situ heat treatment process utilizing a closed loop heating system
US20080142216A1 (en) * 2006-10-20 2008-06-19 Vinegar Harold J Treating tar sands formations with dolomite
US7703513B2 (en) 2006-10-20 2010-04-27 Shell Oil Company Wax barrier for use with in situ processes for treating formations
US20080142217A1 (en) * 2006-10-20 2008-06-19 Roelof Pieterson Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US8555971B2 (en) 2006-10-20 2013-10-15 Shell Oil Company Treating tar sands formations with dolomite
US20080185147A1 (en) * 2006-10-20 2008-08-07 Vinegar Harold J Wax barrier for use with in situ processes for treating formations
US20080217016A1 (en) * 2006-10-20 2008-09-11 George Leo Stegemeier Creating fluid injectivity in tar sands formations
US20080217003A1 (en) * 2006-10-20 2008-09-11 Myron Ira Kuhlman Gas injection to inhibit migration during an in situ heat treatment process
US7717171B2 (en) 2006-10-20 2010-05-18 Shell Oil Company Moving hydrocarbons through portions of tar sands formations with a fluid
US7730946B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Treating tar sands formations with dolomite
US7730945B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US7730947B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Creating fluid injectivity in tar sands formations
US20080217015A1 (en) * 2006-10-20 2008-09-11 Vinegar Harold J Heating hydrocarbon containing formations in a spiral startup staged sequence
US20080217004A1 (en) * 2006-10-20 2008-09-11 De Rouffignac Eric Pierre Heating hydrocarbon containing formations in a checkerboard pattern staged process
US20080277113A1 (en) * 2006-10-20 2008-11-13 George Leo Stegemeier Heating tar sands formations while controlling pressure
US20080283246A1 (en) * 2006-10-20 2008-11-20 John Michael Karanikas Heating tar sands formations to visbreaking temperatures
US20090014181A1 (en) * 2006-10-20 2009-01-15 Vinegar Harold J Creating and maintaining a gas cap in tar sands formations
US20090014180A1 (en) * 2006-10-20 2009-01-15 George Leo Stegemeier Moving hydrocarbons through portions of tar sands formations with a fluid
US8191630B2 (en) 2006-10-20 2012-06-05 Shell Oil Company Creating fluid injectivity in tar sands formations
US7644765B2 (en) 2006-10-20 2010-01-12 Shell Oil Company Heating tar sands formations while controlling pressure
US7540324B2 (en) 2006-10-20 2009-06-02 Shell Oil Company Heating hydrocarbon containing formations in a checkerboard pattern staged process
US7562707B2 (en) 2006-10-20 2009-07-21 Shell Oil Company Heating hydrocarbon containing formations in a line drive staged process
US7845411B2 (en) 2006-10-20 2010-12-07 Shell Oil Company In situ heat treatment process utilizing a closed loop heating system
US7841401B2 (en) 2006-10-20 2010-11-30 Shell Oil Company Gas injection to inhibit migration during an in situ heat treatment process
US20090078461A1 (en) * 2007-04-20 2009-03-26 Arthur James Mansure Drilling subsurface wellbores with cutting structures
US20090090509A1 (en) * 2007-04-20 2009-04-09 Vinegar Harold J In situ recovery from residually heated sections in a hydrocarbon containing formation
US9181780B2 (en) 2007-04-20 2015-11-10 Shell Oil Company Controlling and assessing pressure conditions during treatment of tar sands formations
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US8327681B2 (en) * 2007-04-20 2012-12-11 Shell Oil Company Wellbore manufacturing processes for in situ heat treatment processes
US8381815B2 (en) 2007-04-20 2013-02-26 Shell Oil Company Production from multiple zones of a tar sands formation
US20090321075A1 (en) * 2007-04-20 2009-12-31 Christopher Kelvin Harris Parallel heater system for subsurface formations
US20090084547A1 (en) * 2007-04-20 2009-04-02 Walter Farman Farmayan Downhole burner systems and methods for heating subsurface formations
US8459359B2 (en) 2007-04-20 2013-06-11 Shell Oil Company Treating nahcolite containing formations and saline zones
US7832484B2 (en) 2007-04-20 2010-11-16 Shell Oil Company Molten salt as a heat transfer fluid for heating a subsurface formation
US7841425B2 (en) 2007-04-20 2010-11-30 Shell Oil Company Drilling subsurface wellbores with cutting structures
US7841408B2 (en) 2007-04-20 2010-11-30 Shell Oil Company In situ heat treatment from multiple layers of a tar sands formation
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US20090120646A1 (en) * 2007-04-20 2009-05-14 Dong Sub Kim Electrically isolating insulated conductor heater
US7849922B2 (en) 2007-04-20 2010-12-14 Shell Oil Company In situ recovery from residually heated sections in a hydrocarbon containing formation
US20090095480A1 (en) * 2007-04-20 2009-04-16 Vinegar Harold J In situ heat treatment of a tar sands formation after drive process treatment
US8042610B2 (en) 2007-04-20 2011-10-25 Shell Oil Company Parallel heater system for subsurface formations
US20090095478A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US20090095476A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Molten salt as a heat transfer fluid for heating a subsurface formation
US20090095477A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Heating systems for heating subsurface formations
US7950453B2 (en) 2007-04-20 2011-05-31 Shell Oil Company Downhole burner systems and methods for heating subsurface formations
US8662175B2 (en) 2007-04-20 2014-03-04 Shell Oil Company Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US20090095479A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Production from multiple zones of a tar sands formation
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US20090126929A1 (en) * 2007-04-20 2009-05-21 Vinegar Harold J Treating nahcolite containing formations and saline zones
US7931086B2 (en) 2007-04-20 2011-04-26 Shell Oil Company Heating systems for heating subsurface formations
US8113272B2 (en) 2007-10-19 2012-02-14 Shell Oil Company Three-phase heaters with common overburden sections for heating subsurface formations
US8196658B2 (en) 2007-10-19 2012-06-12 Shell Oil Company Irregular spacing of heat sources for treating hydrocarbon containing formations
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US20090200025A1 (en) * 2007-10-19 2009-08-13 Jose Luis Bravo High temperature methods for forming oxidizer fuel
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US20090194524A1 (en) * 2007-10-19 2009-08-06 Dong Sub Kim Methods for forming long subsurface heaters
US8011451B2 (en) 2007-10-19 2011-09-06 Shell Oil Company Ranging methods for developing wellbores in subsurface formations
US7866388B2 (en) 2007-10-19 2011-01-11 Shell Oil Company High temperature methods for forming oxidizer fuel
US20090194282A1 (en) * 2007-10-19 2009-08-06 Gary Lee Beer In situ oxidation of subsurface formations
US20090194333A1 (en) * 2007-10-19 2009-08-06 Macdonald Duncan Ranging methods for developing wellbores in subsurface formations
US8240774B2 (en) 2007-10-19 2012-08-14 Shell Oil Company Solution mining and in situ treatment of nahcolite beds
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US8146669B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Multi-step heater deployment in a subsurface formation
US8146661B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Cryogenic treatment of gas
US20090194269A1 (en) * 2007-10-19 2009-08-06 Vinegar Harold J Three-phase heaters with common overburden sections for heating subsurface formations
US20090194329A1 (en) * 2007-10-19 2009-08-06 Rosalvina Ramona Guimerans Methods for forming wellbores in heated formations
US20090200854A1 (en) * 2007-10-19 2009-08-13 Vinegar Harold J Solution mining and in situ treatment of nahcolite beds
US20090200031A1 (en) * 2007-10-19 2009-08-13 David Scott Miller Irregular spacing of heat sources for treating hydrocarbon containing formations
US8162059B2 (en) 2007-10-19 2012-04-24 Shell Oil Company Induction heaters used to heat subsurface formations
US8276661B2 (en) 2007-10-19 2012-10-02 Shell Oil Company Heating subsurface formations by oxidizing fuel on a fuel carrier
US8272455B2 (en) 2007-10-19 2012-09-25 Shell Oil Company Methods for forming wellbores in heated formations
US20100252261A1 (en) * 2007-12-28 2010-10-07 Halliburton Energy Services, Inc. Casing deformation and control for inclusion propagation
US7950456B2 (en) 2007-12-28 2011-05-31 Halliburton Energy Services, Inc. Casing deformation and control for inclusion propagation
US20090272578A1 (en) * 2008-04-18 2009-11-05 Macdonald Duncan Charles Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8177305B2 (en) 2008-04-18 2012-05-15 Shell Oil Company Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US20090272535A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Using tunnels for treating subsurface hydrocarbon containing formations
US20100071904A1 (en) * 2008-04-18 2010-03-25 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20090272533A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US8636323B2 (en) 2008-04-18 2014-01-28 Shell Oil Company Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8562078B2 (en) 2008-04-18 2013-10-22 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US9528322B2 (en) 2008-04-18 2016-12-27 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8151907B2 (en) 2008-04-18 2012-04-10 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8752904B2 (en) 2008-04-18 2014-06-17 Shell Oil Company Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US20090260823A1 (en) * 2008-04-18 2009-10-22 Robert George Prince-Wright Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8162405B2 (en) 2008-04-18 2012-04-24 Shell Oil Company Using tunnels for treating subsurface hydrocarbon containing formations
US8172335B2 (en) 2008-04-18 2012-05-08 Shell Oil Company Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US20100101784A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8281861B2 (en) 2008-10-13 2012-10-09 Shell Oil Company Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US9129728B2 (en) 2008-10-13 2015-09-08 Shell Oil Company Systems and methods of forming subsurface wellbores
US8267185B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Circulated heated transfer fluid systems used to treat a subsurface formation
US20100108379A1 (en) * 2008-10-13 2010-05-06 David Alston Edbury Systems and methods of forming subsurface wellbores
US8353347B2 (en) 2008-10-13 2013-01-15 Shell Oil Company Deployment of insulated conductors for treating subsurface formations
US8261832B2 (en) 2008-10-13 2012-09-11 Shell Oil Company Heating subsurface formations with fluids
US9051829B2 (en) 2008-10-13 2015-06-09 Shell Oil Company Perforated electrical conductors for treating subsurface formations
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US20100224368A1 (en) * 2008-10-13 2010-09-09 Stanley Leroy Mason Deployment of insulated conductors for treating subsurface formations
US8267170B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Offset barrier wells in subsurface formations
US20100108310A1 (en) * 2008-10-13 2010-05-06 Thomas David Fowler Offset barrier wells in subsurface formations
US20100101783A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Using self-regulating nuclear reactors in treating a subsurface formation
US20100147521A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Perforated electrical conductors for treating subsurface formations
US20100101794A1 (en) * 2008-10-13 2010-04-29 Robert Charles Ryan Heating subsurface formations with fluids
US20100096137A1 (en) * 2008-10-13 2010-04-22 Scott Vinh Nguyen Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US20100089586A1 (en) * 2008-10-13 2010-04-15 John Andrew Stanecki Movable heaters for treating subsurface hydrocarbon containing formations
US8881806B2 (en) 2008-10-13 2014-11-11 Shell Oil Company Systems and methods for treating a subsurface formation with electrical conductors
US20100147522A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Systems and methods for treating a subsurface formation with electrical conductors
US8220539B2 (en) 2008-10-13 2012-07-17 Shell Oil Company Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US20100206570A1 (en) * 2008-10-13 2010-08-19 Ernesto Rafael Fonseca Ocampos Circulated heated transfer fluid systems used to treat a subsurface formation
US20100089584A1 (en) * 2008-10-13 2010-04-15 David Booth Burns Double insulated heaters for treating subsurface formations
US20110042084A1 (en) * 2009-04-10 2011-02-24 Robert Bos Irregular pattern treatment of a subsurface formation
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
US20100258291A1 (en) * 2009-04-10 2010-10-14 Everett De St Remey Edward Heated liners for treating subsurface hydrocarbon containing formations
US20100258309A1 (en) * 2009-04-10 2010-10-14 Oluropo Rufus Ayodele Heater assisted fluid treatment of a subsurface formation
US20100258290A1 (en) * 2009-04-10 2010-10-14 Ronald Marshall Bass Non-conducting heater casings
US8327932B2 (en) 2009-04-10 2012-12-11 Shell Oil Company Recovering energy from a subsurface formation
US8851170B2 (en) 2009-04-10 2014-10-07 Shell Oil Company Heater assisted fluid treatment of a subsurface formation
US8434555B2 (en) 2009-04-10 2013-05-07 Shell Oil Company Irregular pattern treatment of a subsurface formation
US20100258265A1 (en) * 2009-04-10 2010-10-14 John Michael Karanikas Recovering energy from a subsurface formation
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
US9399905B2 (en) 2010-04-09 2016-07-26 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9022109B2 (en) 2010-04-09 2015-05-05 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8875788B2 (en) 2010-04-09 2014-11-04 Shell Oil Company Low temperature inductive heating of subsurface formations
US8739874B2 (en) 2010-04-09 2014-06-03 Shell Oil Company Methods for heating with slots in hydrocarbon formations
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US9127523B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Barrier methods for use in subsurface hydrocarbon formations
US9127538B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Methodologies for treatment of hydrocarbon formations using staged pyrolyzation
US8833453B2 (en) 2010-04-09 2014-09-16 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US8955585B2 (en) 2011-09-27 2015-02-17 Halliburton Energy Services, Inc. Forming inclusions in selected azimuthal orientations from a casing section
US10119356B2 (en) 2011-09-27 2018-11-06 Halliburton Energy Services, Inc. Forming inclusions in selected azimuthal orientations from a casing section
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation
US11655697B2 (en) 2014-01-31 2023-05-23 Green Chemistry Energy Llc Method and system for subsurface resource production
US10370949B2 (en) 2015-09-23 2019-08-06 Conocophillips Company Thermal conditioning of fishbone well configurations
US10125589B2 (en) 2016-05-27 2018-11-13 Board Of Regents Of The University Of Texas System Downhole induction heater and coupling system for oil and gas wells
US11927076B2 (en) 2022-07-19 2024-03-12 Salamander Ip Holdings Llc Gas condensate removal heating system

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