CN102454386A - Subsurface heating device - Google Patents
Subsurface heating device Download PDFInfo
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- CN102454386A CN102454386A CN2011103559911A CN201110355991A CN102454386A CN 102454386 A CN102454386 A CN 102454386A CN 2011103559911 A CN2011103559911 A CN 2011103559911A CN 201110355991 A CN201110355991 A CN 201110355991A CN 102454386 A CN102454386 A CN 102454386A
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- Prior art keywords
- burner
- burning
- fuel
- oxygen
- sheathed catheter
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- 238000010438 heat treatment Methods 0.000 title abstract description 5
- 239000000446 fuel Substances 0.000 claims abstract description 83
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000001301 oxygen Substances 0.000 claims abstract description 60
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 60
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 15
- 229930195733 hydrocarbon Natural products 0.000 claims description 32
- 150000002430 hydrocarbons Chemical class 0.000 claims description 32
- 239000004215 Carbon black (E152) Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 5
- 239000003079 shale oil Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910001026 inconel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000001997 corrosion-resisting alloy Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 239000011435 rock Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000004939 coking Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- GGYKPYDKXLHNTI-UHFFFAOYSA-N 2,6,10,14-tetramethylhexadecane Chemical compound CCC(C)CCCC(C)CCCC(C)CCCC(C)C GGYKPYDKXLHNTI-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- -1 silicilyte Chemical compound 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
Abstract
In one aspect, the present invention provides a subsurface heating device comprising: (a) a combustion conduit casing defining a combustion conduit; (b) at least two combustors disposed within the combustion conduit casing; (c) at least one fuel supply conduit; d) at least one oxygen supply conduit configured to supply oxygen to at least one combustor; and (e) a combustion product gas outlet. The at least two combustors are characterized by an inter-combustor distance of at least one thousand feet and a combustion power of at least 3.41 million BTU per hour. The at least one fuel supply conduit is configured to supply a combustible fuel to at least one combustor. Also provided in another aspect of the present invention, is a method for heating a subsurface zone.
Description
Background technology
Have the hydrocarbon reservoir that extensively distributes all over the world, it is used for the crucial energy of World Economics sustainable development in the foreseeable future representative.These reservoirs comprise the hydrocarbon mixture of viscosity-be called as " tar ", " heavy oil " or " extra heavy oil " often, and it typically has the viscosity in about 3000 to 1000000 centipoise scopes when locating to measure for about 37.5 ℃.The geological formations of many carrying hydrocarbon comprises this hydrocarbon mixture, and it does not allow the hydrocarbon content promptly to flow to pit shaft because of the high viscosity of hydrocarbon content so that exploitation.In some hydrocarbon reservoir, for example in the oil shale reservoir, the hydrocarbon composition must thermal decomposition become more low-molecular-weight compound, it is reclaimed from reservoir so that realize.In some cases, must reservoir be heated to and surpass 300 ℃ temperature, so as to realize in the hydrocarbon reservoir hydrocarbon in addition the part exploitation.
Known three kinds of dissimilar technologies are used for strengthening from subterranean hydrocarbon reservoirs carries out the hydrocarbon exploitation.These technologies can be classified as thermal process, chemical technology and miscible displacement technology usually.
A kind of well-known known thermal process relates to " original place " combustion technology, and the reservoir that wherein is used as the fuels sources of himself is lighted through injecting well, and spread towards producing well from injecting well the combustion zone.Burning can realize that the transfer mode of the needed external source oxygen of burning receives control to a certain degree through the position of injection well with in the combustion zone.Because the character of related fuel and complexity, this original place combustion technology have produced complicated various combustion product gas, it must be managed carefully, to prevent that they are discharged in the living environment uncontrollably.
In reservoir and the conduction of heat phenomenon around the reservoir can play critical effect aspect the hydrocarbon recovery rate, and this speed possibly receive the further restriction of tendency of the hydrocarbon composition experience coking of reservoir.Possibly receive the restriction of the coking temperature and the ambient temperature of the reservoir that carries hydrocarbon from the heat transfer rate of thermal source to reservoir.Thereby, the method that relates to the heat hydrocarbon reservoir must make the opposing reservoir the hydrocarbon composition coking temperature and the speed of heat being introduced reservoir with can heat be reached balance from the speed that thermal source conducts to the reservoir.
Therefore need a kind of underground heater, it utilizes the fuel of cleaning, and for example natural gas, and realization is sent to sizable heat the reservoir from this device controllably, thereby can coking be reduced to minimum, increases the efficient that hydrocarbon reclaims simultaneously to greatest extent.
Summary of the invention
In one aspect, the invention provides a kind of underground heater, it comprises: the burning sheathed catheter that (a) defines the burning conduit; (b) at least two burners that are arranged in the burning sheathed catheter; (c) at least one fuel supplying duct, it is configured in order to ignitable fuel is supplied with at least one burner; (d) at least one oxygen supplying duct, it is configured in order to oxygen is supplied with at least one burner; (e) combustion product gas outlet.The characteristic of these at least two burners is distance and the combustion powers of 3.41 hundred ten thousand British thermal units (BTU) at least per hour between at least one thousand feet burner.
On the other hand, the invention provides a kind of method of lower area heatedly that is used for, it comprises: (i) create the cavity that holds that is used for underground heater; Underground heater (ii) is installed; And (iii) operatively descend heater.This underground heater comprises that (a) defines the burning sheathed catheter of burning conduit; (b) at least two burners that are arranged in the burning sheathed catheter; (c) at least one fuel supplying duct, it is configured in order to ignitable fuel is supplied with at least one burner; (d) at least one oxygen supplying duct, it is configured in order to oxygen is supplied with at least one burner; (e) combustion product gas outlet.The characteristic of these at least two burners is distance and the combustion powers of 3.41 hundred ten thousand BTU at least per hour between at least one thousand feet burner.
Aspect another, the invention provides a kind of method that shale oil reclaims that is used for, it comprises: (i) create the cavity that holds that is used for underground heater; (ii) underground heater is installed in and holds in the cavity; And (iii) operatively descend heater.This underground heater comprises that (a) defines the burning sheathed catheter of burning conduit; (b) at least two burners that are arranged in the burning sheathed catheter; (c) at least one fuel supplying duct, it is configured in order to ignitable fuel is supplied with at least one burner; (d) at least one oxygen supplying duct, it is configured in order to oxygen is supplied with at least one burner; (e) combustion product gas outlet.The characteristic of these at least two burners is the distances between about 1000 feet burner, and wherein the thermal output of first burner is about 1.5 to about 2.5 times of thermal output of next burner of the distance between spaced apart about 1000 feet burner.
Description of drawings
When specifying below with reference to advantages, these and further feature, aspect and the advantage of the present invention understanding that will improve, wherein similar sign is represented similar parts in institute's drawings attached, wherein:
Fig. 1 is underground according to an embodiment of the invention cross-sectional side view.
Component list:
10 underground heaters;
12 burning sheathed catheters;
14 burners;
Distance between 16 burners;
18 fuel supplying ducts;
20 oxygen supplying ducts;
The outlet of 22 combustion product gas;
24 compressors;
26 pumps;
28 fuel;
30 burning conduits;
34 outlets.
The specific embodiment
In following manual and appended claim, will quote many words, they will be restricted to has following implication.
Only if make other regulation in the context clearly, singulative " ", " one " and " being somebody's turn to do " comprise a plurality of referents.
" optional " or " alternatively " means that next described incident or situation possibly take place or possibly not take place, and this description comprises situation and its situation that does not take place that incident takes place.
Will also be appreciated that the word such as " top ", " bottom ", " outwards ", " inwardly " or the like all is the word of convenience, and should not be considered to restricted word.In addition; No matter when say that special characteristic of the present invention comprises at least one and the combination in several elements in the set of pieces; Or by in several elements in the set of pieces at least one and when forming; Should understand that all this characteristic can comprise any element of this element group or form (perhaps with independent mode, perhaps combining any other element of this element group) by any element of this element group.
The approximate statement that uses among this paper can be used for modifying any amount statement in whole manual and claim, it can permit changing under the condition that does not cause relative basic function to change.Therefore, should not be limited to the exact value of defined by the value of modifying such as a word or a plurality of word of " approximately ".In some cases, approximate statement can be corresponding with the precision of the instrument that is used to measure this value.Similarly, " nothing " can combine something or other to use, and can comprise quite few quantity or trace, but still is considered to not have the things modified.
As following detailed argumentation, embodiments of the invention comprise a kind of underground heater, and it comprises: the burning sheathed catheter that (a) defines the burning conduit; (b) at least two burners that are arranged in the burning sheathed catheter; (c) at least one fuel supplying duct, it is configured in order to ignitable fuel is supplied with at least one burner; (d) at least one oxygen supplying duct, it is configured in order to oxygen is supplied with at least one burner; (e) combustion product gas outlet.The characteristic of these at least two burners is distance and the combustion powers of 3.41 hundred ten thousand BTU at least per hour between at least one thousand feet burner.
In one embodiment of the invention, as shown in Figure 1, underground heater 10 comprises burning sheathed catheter 12.Burning sheathed catheter 12 typically defines burning conduit 30.In one embodiment, burning sheathed catheter 12 is made up of at least a material, and this at least a material is selected from the material group by steel, stainless steel, inconel and highly corrosion resistant alloy composition.In another embodiment, burning sheathed catheter 12 is made up of steel pipe.
Burning sheathed catheter 12 has at least two burners 14 that are arranged in this burning sheathed catheter.Burner 14 is to be selected from electric heater, coal gas burner, the distributed burner of nonflame, natural distributed formula burner (natural distributed combustor) or hot gas to carry at least one in the conduit.In one embodiment, burner 14 is neat gas burners of low emission, those burners that for example in advanced person's gas turbine, found.In one embodiment, these at least two burners 14 are coupled in series.In another embodiment, these at least two burners 14 are parallel connections.Typically, these at least two burners 14 spaced apart one section vertical distances, and allow the covering of bigger heating surface area.Underground heater 10 comprises at least two burners, and it is arranged in the burning sheathed catheter 12, and by 16 its characteristics of expression of the distance between burner.In one embodiment, the distance 16 between the burner between these at least two burners 14 is at least one thousand feet.In another embodiment, the distance 16 between the burner between these at least two burners 14 about 1000 feet to about 3000 feet scope.In yet another embodiment, the distance 16 between the burner between these at least two burners 14 is about 2000 feet.In one embodiment, these at least two burners 14 can move with respect to burning sheathed catheter 12 independently.In another embodiment, burner is attached on the mobile platform, and for example on the guide rail, wherein mobile platform is attached on the inner surface of burning sheathed catheter 12.
Typically, burner 14 approximately per hour has at least the combustion power of 3.41 hundred ten thousand BTU.In another embodiment, burner 14 has the combustion power to the 10.23 hundred ten thousand BTU scopes approximately per hour at 3.41 hundred ten thousand BTU approximately per hour.In yet another embodiment, each in these at least two burners 14 has the approximately per hour combustion power of 3.41BTU.In one embodiment, each in these at least two burners can have similar combustion power.In an alternative, each in these at least two burners can have different combustion powers.
Typically; The fuel that is adopted for underground heater 10 is a kind of ignitable fuel, the jet fuel of the premix of natural gas, methane and air that it can be selected from natural gas, hydrocarbon (for example methane, propane or the like), forming gas (mixture that for example comprises hydrogen and carbon monoxide), mix with heavier composition (for example ethane, propane, butane or carbon monoxide), diesel oil, fuel oil, kerosene type.In one embodiment, ignitable fuel is a liquid fuel.In another embodiment, liquid fuel is a jet fuel.In certain embodiments, fuel also can comprise non-combustible gas, for example nitrogen.In certain embodiments, fuel also can comprise the product from the gasifying process of coal or heavy oil.Usually, after the mixture of fuel and oxidant took fire in burner 14, the composition of fuel possibly change, to strengthen the operational stability of burner 14.
In one embodiment, fuel supplying duct 18 offers at least one burner 14 with natural gas.In another embodiment, fuel supplying duct 18 offers at least one burner 14 with fuel oil.In one embodiment, through pump 26 fuel is introduced in the fuel supplying duct 18.Fuel supplying duct 18 can be supplied with at least one with fuel and be arranged in the burner 14 in the burning sheathed catheter 12.In some illustrative embodiment (Fig. 1), fuel supplying duct 18 can have branch, makes the branch of fuel supplying duct 18 fuel supplied with the burner 14 that is arranged in the burning sheathed catheter 12.In certain embodiments, can adopt a plurality of fuel supplying ducts, so that can under the condition that does not influence other burner, interrupt supply to the fuel of one or more burners.Typically, a plurality of fuel supplying ducts 18 also can help the amount at the fuel of adjustment supplied burner 14 during starts and when setting up the stable operation of burner.In one embodiment, fuel supplying duct 18 can be supplied with a plurality of burners 14 that are arranged in the burning sheathed catheter 12 with the fuel of equal quantities.In yet another embodiment, fuel supplying duct 18 can be supplied with a plurality of burners 14 that are arranged in the burning sheathed catheter 12 with the fuel of the amount that has nothing in common with each other.In one embodiment, the amount of fuel of supplying with the adjacent burner of these a plurality of burners 14 can be reduced to second adjacent burner or the like from first burner.In various embodiment, fuel supplying duct 18 also can comprise one or more holes (not shown), so that control selectively along the pressure loss of fuel supplying duct 18.
In one embodiment; Fuel supplying duct 18 is connected in fuel is released at least one fuel nozzle ports or fuel openings (not shown) in the burner, and oxygen supplying duct 20 is connected in the gas that comprises oxygen (the for example synthetic mixture of air, oxygen or oxygen and one or more gases) is released at least one oxygen (air) nozzle/oxygen opening (not shown) in the burner 14.In another embodiment, except adjustment flowed into the flow of fuel and oxygen in the burner 14 respectively, this at least one fuel nozzle ports or oxygen jet were adjusted burner 14 pressure inside.In one embodiment, the igniter (not shown) that the mixture of fuel and oxygen can be set in the burning sheathed catheter 12 is lighted, and for example this igniter can be little shape naked light burner, electrical heating lead or spark setting.In case lighted, flame just can be diffused in the combustion zone/conversion zone of burner 14.
In one embodiment, each burner 14 in the burner 14 can be operated independently, and promptly burner can open or close independently, and can not influence the state of other burner in the underground heater 10.Thereby; In one embodiment; During operation; First burner that is positioned along burning axis that sheathed catheter 12 limited on the reference position of called after 1 is opened (fuel nozzle ports that promptly is associated and oxygen (air) nozzle is opened, and the oxygen that therefrom occurs-fuel mixture burning), and the axis that sheathed catheter 12 limited along burning and near be positioned at first burner second burner is closed (fuel nozzle ports that promptly is associated and oxygen (air) nozzle is closed).In yet another embodiment, at any given time, the parameter of the pressure that the amount of the heat that on this at least one burner 14, is produced can be through changing pressure such as ignitable fuel, oxygen or change oxygen and change independently with the ratio of ignitable fuel.In one embodiment, the thermal output of first burner is about 1 to about 5 times of thermal output of next burner.In another embodiment, the thermal output of first burner is about 1.5 to about 2.5 times of thermal output of next burner.
In various embodiment, this at least one fuel nozzle ports is controlled with oxygen (air) nozzle that is associated, and makes it open, partly open or close as required.Traditional control system may be utilized.In one embodiment; The mechanical component of burner (for example fuel nozzle ports, oxygen (air) nozzle and the burner igniter that are associated) and one group of operation sensor (flame ON/OFF sensor, valve ON/OFF sensor, temperature pick up, pressure sensor, igniter ON/OFF sensor) are connected on the controller through the control cables of insulation, and control cables is along the axis of burning sheathed catheter 12 and in burning sheathed catheter 12, arrange.In one embodiment, underground heater 10 also can comprise a plurality of sensor (not shown)s.In one embodiment, sensor is a temperature pick up.In one embodiment, temperature pick up can be arranged in the underground heater 10.In another embodiment, temperature pick up can be arranged on outside the external surface of burning sheathed catheter 12 of underground heater 10.In another embodiment, temperature pick up is configured in order to data are offered the control system.
In one embodiment, burner 14 can comprise three regional (not shown)s, and it comprises Mixed Zone, ignition zone and conversion zone.Conversion zone also can be called as the combustion zone, because burning occurs in the conversion zone.In another embodiment, three zones that are present in the burner 14 can easily distinguish.In one embodiment, oxygen and fuel get in the Mixed Zone of burner 14.The flammable mixture of fuel and oxygen is sent to the flame region that comprises igniter from the Mixed Zone, and the reaction of igniter starting fluid and oxygen is to provide heat and combustion product gas.Typically, thus the combustion product gas that produces can flow through burning conduit 30.In another embodiment shown in Figure 1, owing to the combustion product gas that the reaction in the burner 14 forms is removed from burning conduit 30 through outlet 34.In one embodiment, combustion product gas can provide heat when its length along burning sheathed catheter 12 flows.The heat that in burner 14, is produced, can increase through the shell of heat transmission the amount that passes to the heat of rock stratum from burning sheathed catheter 12 along the length of burning sheathed catheter 12 and by the heat that combustion product gas provided.In one embodiment, burning sheathed catheter 12 is configured to hold heat transfer material, for example organic heat transfer fluid body or fused salt, and they are used for the heat that burner 14 is produced is passed to this rock stratum more equably.In various embodiments, combustion product gas 34 is directed to air processing unit through the outlet of the combustion product gas in the outlet 34 22 after in burning sheathed catheter 12, carrying out interchange of heat.In another embodiment, combustion product gas outlet 22 is configured to send gas analyser in order to the sample with combustion product gas 34.The nonrestrictive example of gas analyser comprises gas chromatograph and metal oxide sensor.In yet another embodiment, combustion product gas outlet 22 is configured on the direction that is parallel to the sheathed catheter 12 that burns, return at least a portion of combustion product gas 34.
Those skilled in the art will understand; Fuel and air duct (be fuel supplying duct 18 with oxygen supplying duct 20) can closely closely descend the combustion zone of heater 10, and the heat existence flows to the center of underground heater 10 and from underground heater 10 to extraradial tendency.Because respectively from the fuel of fuel supplying duct 18 and oxygen supplying duct 20 and outwards flowing of the gas that comprises oxygen, so can the temperature in each conduit be remained on relatively low temperature in the operating period of underground heater 10.The lower flow velocity and the lower pressure loss are in fuel and the result who comprises the relatively lower temp of leading (prevailing) in the gas supplying duct of oxygen.
Another aspect of the present invention provides a kind of method of lower area heatedly that is used for, and it comprises: (a) create the cavity that holds that is used for underground heater 10; (b) underground heater 10 is installed; (c) operatively descend heater 10.
In one embodiment, can in the hydrocarbon reservoir, create and hold cavity.Word used herein " hydrocarbon " is restricted to a kind of compound that comprises carbon and hydrogen.Yet the reservoir that comprises hydrocarbon possibly comprise many compositions, comprises the element that is different from carbon and hydrogen, for example halogen family, nitrogen, oxygen, metal, sulphur and selenium.The non-limiting example that can be present in the composition in the hydrocarbon reservoir comprises straight chain and branched-chain hydrocarbons, for example larane (C
20Straight-chain hydrocarbons) and phytane (C
20Branched-chain hydrocarbons), pitch, tar, mineral, natural rock asphalt, oil bearing rock.The hydrocarbon reservoir typically is included in the geology matrix, for example sedimentary rock, oil-bearing sand, silicilyte, carbonate, kieselguhr.In one embodiment, the hydrocarbon reservoir is a kind of petroliferous bed of underground viscosity.In one embodiment, the hydrocarbon reservoir is included in the heavy oil Tar sands rock stratum.In another embodiment, the hydrocarbon reservoir is included in the shale oil rock stratum.In one embodiment, it can be underground holding cavity, is positioned under the tundra seabed or be under the oil well in base with the inland.Method provided by the invention can combine various widely hydrocarbon recovery technologies to put into practice, and comprises that vertical recovery, the gravity that level reclaims and steam is auxiliary flow (SAGD) technology.In another embodiment, can in zone near the ground, create and hold cavity.The example in zone near the ground applicatory including, but not limited to construction activity zone, to hold aqua region, water transportation zone (for example municipal administration send water and waste water to remove) and water treatment regional, for example municipal water treatment plant.
In one embodiment, underground heater 10 can be operated in pressurized environment.In another embodiment, it can be at the enterprising line operate of several thousand feet length under fuel that changes and oxygen pressure.In one embodiment, underground heater 10 mode that can be parallel to the face of land is reduced to and holds in the cavity.In certain embodiments, underground heater 10 relatively the mode of telogenesis angle be reduced to and hold in the cavity.In another embodiment, underground heater 10 relatively the face of land mode that is in vertical position be reduced to and hold in the cavity.
Aspect another, the invention provides a kind of method that shale oil reclaims that is used for, it comprises: (i) create the cavity that holds that is used for underground heater; (ii) underground heater is installed in and holds in the cavity; And (iii) operatively descend heater.This underground heater comprises that (a) defines the burning sheathed catheter of burning conduit; (b) at least two burners that are arranged in the burning sheathed catheter; (c) at least one fuel supplying duct, it is configured in order to ignitable fuel is supplied with at least one burner; (d) at least one oxygen supplying duct, it is configured in order to oxygen is supplied with at least one burner; (e) combustion product gas outlet.These at least two burners be characterized as the distance between about 1000 feet burner, and wherein, the thermal output of first burner is about 1.5 to about 2.5 times of thermal output of next burner of the distance between spaced apart about 1000 feet burner.
This written description usage example comes open the present invention, comprises optimal mode, and makes any technician in this area can put into practice the present invention, comprises manufacturing and utilizes any device or system, and carry out any method that combines.The scope that patents protection of the present invention is defined by the claims, and can comprise other example that those of skill in the art expect.If it not is the structural member that is different from the claim literal language that these other examples have; If perhaps they comprise the structural member that does not have the equivalence of essence difference with the claim literal language, these other examples all are intended to be in the scope of claim so.
Claims (10)
1. a underground heater (10) comprising:
(a) burning sheathed catheter (12), it defines burning conduit (30);
(b) at least two burners (14), it is arranged in the said burning sheathed catheter (12), and characteristic is distance (16) and the combustion power of 3.14 hundred ten thousand BTU at least per hour between at least one thousand feet burner;
(c) at least one fuel supplying duct (18), it is configured in order to ignitable fuel is supplied with at least one burner (14);
(d) at least one oxygen supplying duct (20), it is configured in order to oxygen is supplied with at least one burner (14); With
(e) combustion product gas outlet (22).
2. underground heater according to claim 1 (10) is characterized in that, said burning conduit (30) is as said oxygen supplying duct.
3. underground heater according to claim 1 (10) is characterized in that, said burner (14) can move with respect to said burning sheathed catheter (12) independently.
4. underground heater according to claim 1 (10) is characterized in that, also comprises at least one sensor, and it is configured in order to data are offered remote controllers.
5. underground heater according to claim 1 (10) is characterized in that, said burning sheathed catheter (12) is made up of at least a material that is selected from the group of being made up of steel pipe, stainless steel, inconel and corrosion resisting alloy.
6. underground heater according to claim 1 (10) is characterized in that, said combustion product gas outlet (22) is configured on the direction that is parallel to said burning sheathed catheter (30), return at least a portion of said combustion product gas (34).
7. one kind is used for the method for lower area heatedly, comprising:
(i) create the cavity that holds that is used for underground heater (10); Said underground heater (10) comprises (a) burning sheathed catheter (12), and it defines burning conduit (30); (b) at least two burners (14), it is arranged in the said burning sheathed catheter (12), and is characterized as distance (16) and the combustion power of 3.14 hundred ten thousand BTU at least per hour between at least one thousand feet burner; (c) at least one fuel supplying duct (18), it is configured in order to ignitable fuel is supplied with at least one burner (14); (d) at least one oxygen supplying duct (20), it is configured in order to oxygen is supplied with at least one burner (14); (e) combustion product gas outlet (22);
(ii) said underground heater (10) is installed in said holding in the cavity; And
(iii) operate said underground heater (10).
8. method according to claim 7 is characterized in that, in the hydrocarbon reservoir, creates the said cavity that holds.
9. method according to claim 7 is characterized in that, the thermal output of first burner is about 1.5 to about 2.5 times of thermal output of next burner.
10. one kind is used for the method that shale oil reclaims, and comprising:
(i) create the cavity that holds that is used for underground heater (10); Said underground heater (10) comprises (a) burning sheathed catheter (12), and it defines burning conduit (30); (b) at least two burners (14); It is arranged in the said burning sheathed catheter (12); And characteristic is the distance (16) between about 1000 feet burner; And wherein, the thermal output of first burner be the distance (16) between spaced apart about 1000 feet burner next burner thermal output 1.5-2.5 doubly; (c) at least one fuel supplying duct (18), it is configured in order to at least one burner of combustible liquid fuel supply (14); (d) at least one oxygen supplying duct (20), it is configured in order to oxygen is supplied with at least one burner (14); (e) combustion product gas outlet (22);
(ii) said underground heater (10) is installed in said holding in the cavity; And
(iii) operate said underground heater (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/915,530 US20120103604A1 (en) | 2010-10-29 | 2010-10-29 | Subsurface heating device |
| US12/915530 | 2010-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454386A true CN102454386A (en) | 2012-05-16 |
Family
ID=45955486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103559911A Pending CN102454386A (en) | 2010-10-29 | 2011-10-27 | Subsurface heating device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120103604A1 (en) |
| CN (1) | CN102454386A (en) |
| AR (1) | AR083540A1 (en) |
| BR (1) | BRPI1104237A2 (en) |
| CA (1) | CA2755755A1 (en) |
| IT (1) | ITMI20111884A1 (en) |
| RU (1) | RU2571120C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8881799B2 (en) * | 2012-08-03 | 2014-11-11 | K2 Technologies, LLC | Downhole gas generator with multiple combustion chambers |
| US9353611B2 (en) * | 2012-11-02 | 2016-05-31 | Trimeteor Oil & Gas Corp. | Method and apparatus for the downhole injection of superheated steam |
| US9382785B2 (en) | 2013-06-17 | 2016-07-05 | Baker Hughes Incorporated | Shaped memory devices and method for using same in wellbores |
| US9531020B2 (en) | 2013-11-15 | 2016-12-27 | Delphi Technologies, Inc. | Method of operating a heater |
| RU2652909C1 (en) * | 2017-08-28 | 2018-05-03 | Общество с ограниченной ответственностью "Научно-техническая и торгово-промышленная фирма "ТЕХНОПОДЗЕМЭНЕРГО" (ООО "Техноподземэнерго") | Well gas-turbine-nuclear oil-and-gas producing complex (plant) |
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| SU791951A1 (en) * | 1977-06-06 | 1980-12-30 | Казанский Филиал Татарского Государственного Научно-Исследовательского И Проектного Института Нефтяной Промышленности | Heating device |
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- 2010-10-29 US US12/915,530 patent/US20120103604A1/en not_active Abandoned
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2011
- 2011-10-17 IT IT001884A patent/ITMI20111884A1/en unknown
- 2011-10-20 CA CA2755755A patent/CA2755755A1/en not_active Abandoned
- 2011-10-20 BR BRPI1104237-0A patent/BRPI1104237A2/en not_active IP Right Cessation
- 2011-10-24 AR ARP110103925A patent/AR083540A1/en unknown
- 2011-10-27 CN CN2011103559911A patent/CN102454386A/en active Pending
- 2011-10-27 RU RU2011143400/03A patent/RU2571120C2/en not_active IP Right Cessation
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| US4479540A (en) * | 1981-06-05 | 1984-10-30 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Gasification of coal |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120103604A1 (en) | 2012-05-03 |
| RU2011143400A (en) | 2013-05-10 |
| ITMI20111884A1 (en) | 2012-04-30 |
| AR083540A1 (en) | 2013-03-06 |
| RU2571120C2 (en) | 2015-12-20 |
| BRPI1104237A2 (en) | 2013-02-26 |
| CA2755755A1 (en) | 2012-04-29 |
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