WO2006021079A1 - Pump jack apparatus and pumping method - Google Patents
Pump jack apparatus and pumping method Download PDFInfo
- Publication number
- WO2006021079A1 WO2006021079A1 PCT/CA2005/001271 CA2005001271W WO2006021079A1 WO 2006021079 A1 WO2006021079 A1 WO 2006021079A1 CA 2005001271 W CA2005001271 W CA 2005001271W WO 2006021079 A1 WO2006021079 A1 WO 2006021079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well
- pump
- set forth
- ram
- electromagnetic ram
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005086 pumping Methods 0.000 title claims description 23
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000003129 oil well Substances 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
- F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
Abstract
An electromagnetic ram for use in artificially lifting fluid from a well and in particular an oil well. The disclosure also teaches a method and system employing the ram. The use obviates existing systems used today in terms of cost, environmental concerns, optimized mechanical efficiencies and maximizing overall production of wells on a case by case basis.
Description
Pump Jack Apparatus and Pumping Method
TECHNICAL FIELD
The present invention relates to an efficiency pumping jack system, particularly, the present invention relates to a well vertical pump jack system for efficiency pumping incorporating an electromagnetic ram.
BACKGROUND ART
As is known in the art, various styles of pump jacks have been used in combination with oil wells for many years and as one possibility employ fluid power operated piston and cylinder assemblies for operating the pump jack. The fluid assemblies assist in operating the reciprocating down hole pump, sucker rod and polish rods. Perhaps the most common and oldest pump-jack system known today incorporates a walking beam type which utilizes counterweights, a gear box and a prime-mover such as a rotary electric motor or an internal combustion motor which will run on various fuel sources. These units are typically costly to purchase, large and heavy to transport, time consuming to set up, mechanically inefficient and draw a significant amount of power. They also have a heavy foot-print which is unacceptable in environmentally sensitive areas.
As is well recognized in the art, the hydraulic pump jack systems are conventionally used on low to medium production wells and unfortunately have low efficiency
(approximately 30 percent) and require extensive power. A further limitation is realized in the environmental unfriendliness of such arrangements, namely, oil leaks and misting inter alia.
Another example of a surface pumping system is referred to as a progressive cavity type pump. Such pumps are employed for use in medium to high volume wells and are particularly useful on wells with heavy sand concentrations or those which are used to produce heavy oil. It has been realized that progressive cavity pumps are not as useful in wells with high, hydrogen sulfide concentration or wells containing high concentrations of carbon dioxide. Accordingly, these pumping systems are limited in durability. Another form of a pump jack is a Roto-Flex system. These arrangements have good power efficiency of between 40 and 50 percent and are used in medium to high volume wells and provide for. a long stroke capability. Although useful, the Roto-Flex units are not particularly environmentally friendly.
Yet another variation on the pumping arrangements used in fluid extraction includes the electric submersible type pumping units which are particularly useful for large volume wells with no gas. These arrangements are useful in some situations, but are quite limited in environments where wells contain gas in fluid. They also suffer from significant power consumption and poor performance in heavy oil.
In terms of hydraulic/pneumatic pump jack systems which are generally surface based, these have the advantage of being relatively inexpensive to setup and can be customized by the user. Such arrangements are only useful for low to medium volume wells and produce medium efficiency. However, although there are advantages to such arrangements these types of pump jacks perform poorly in very hot weather, very cold weather and are environmentally unfriendly.
A further variation on a pumping system is the conventional "gas lift" system used for removing fluid from a well. These devices require no power and are relatively inexpensive to install and are useful in low volume marginal wells using well gas as the prime mover.
One arrangement known in the art is shown in United States Patent No. 4,201,115, issued May 6, 1980 to Ogles. The system is an oil well pump jack with dual hydraulic operating cylinders. The arrangement incorporates the cylinders for pivoting the walking beam of the jack and includes a unique control arrangement for controlling operating of the piston and cylinders. The control system also permits operation of the hydraulic piston and cylinder assemblies in a double action mode or a single action mode.
Saruwatari, in United States Patent No. 4,114,375, issued September 19, 1978, discloses a pump jack device having a double acting piston and cylinder motor with the piston rod of the motor .adapted for connection to the polished rod projecting upwardly from the well head.
In United States Patent No. 4,463,828, issued to Anderson, August 7, 1984, a pu'mp jack is disclosed having a spring handle for cranking the pump jack down and provides a safety lock against accidental unwinding of a helical rod holding the jack on the pole.
Although the devices previously proposed in the art have merit, it is clear that many of the systems employ hydraulically operated cylinders or gear boxes and motors for actuating the reciprocating pump and other critical components in the well. It would be more desirable to have a high efficiency arrangement which did not suffer from the limitations inherent in these systems. The present
invention is directed to alleviating the previous limitations in the art.
The present invention discussed in greater detail hereinafter virtually eliminates all the problems with prior art conventional crank and hydraulic surface drive and various other pumping systems. This invention results in a surface drive mechanism that is efficient, both in energy used and oil pumped and also limits the stresses on all the surface and downhole mechanical components. The unit requires very little site preparation, is light weight, easy to move, and simple to install. Conveniently, operation is fully computerized and will act as a "smart" pump jack aiding in the optimization of each specific given well.
DISCLOSURE OF THE INVENTION
One object of the present invention is to provide an improved oil well pump jack having high efficiency.
Advantageously, having a system which limits the energy used will reduce and limit peak energy substantially resulting in lower energy costs for the end user. This is particularly important considering the practice of the electricity suppliers to bill the entire year based on the peak energy used, even if the peak is only for a few hours.
A further object of one embodiment of the present invention is to provide use of an electromagnetic ram for pumping oil from an oil well with a linear pump jack apparatus.
Significant advantages have been realized via making use of the electromagnetic ram. One of the most advantageous features is the fact that the system is
electronic and therefore does not have the limitation of friction loss, atomized leak, cooling, or other significant problems inherent in hydraulic systems. Additionally, the electromagnetic ram arrangement provides for excellent power efficiency in motion and simply does not use any electrical power when the system is static. As a further advantage, the ram can and will act on the down stroke as a power generator returning power to the supply system. This is not possible with hydraulic or any other pump jack systems and represents a distinct advantage over existing prior art pump jacks.
A further object of one embodiment of the present invention is to provide a pump jack suitable for use on an oil well for pumping fluid from an oil well, comprising: a well head; a support structure connected to the well head; an electromagnetic ram connected to the support structure; a polish rod connected to the electromagnetic ram; pump means connected to the polish rod and rod string for pumping the fluid from the well; and conduit means for transporting recovered fluid pumped from the well.
By incorporating the electromagnetic ram, the system has been able to achieve greater than 90% efficiency with very desirable properties including a smooth precise response, no mechanical backlash and zero hystersis. The arrangement has only one moving part and provides dual action.
A still further object of one embodiment of the present invention is to provide a method of pumping from a well containing fluid, comprising: providing a pump jack apparatus having a well head positioned over a well, a reciprocating pump disposed within the well and a support structure for supporting the pump and the well head;
providing an electromagnetic ram connected to the pump; actuating the electromagnetic ram; and pumping fluid from within the well.
Any electromagnetic ram may be incorporated in the system, an example of which is that which is depicted in United States Patent No. 5,440,183, issued August 8, 1995, to Denne.
This device provides utility in the combination set forth herein and assists in providing a very efficient oil pump jack.
Particularly convenient is the fact that the arrangement can be employed in any type of fluid well, such as a water well, coal bed methane well, oil well, etc.
Having thus generally described the invention, reference will now be made to the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a schematic illustration of the overall system according to one embodiment of the present invention.
INDUSTRIAL APPLICABILITY
The technology has applicability in the oil pumping art.
BEST MODE FOR CARRYING OUT THE INVENTION
Figure 1 schematically illustrates one embodiment of the linear electro-magnetic ram artificial lift pump jack system, as well as the downhole components. The conventional wellhead 8 shows the polish rod 7 which passes
through a wellhead stuffing box 21, and connects to a sucker rod 12. The sucker rod 12 passes down the inside of tubing string 14 to the reciprocating pump 15. The linear electro-magnetic ram 3 connects to the polish rod 7 by the polish rod clamp 6. The linear electro-magnetic ram 3 is connected to the support structure 5 by a structure link 1. The top portion of the structure sits on two weight sensors 2 which measure the weight of the moving pump assembly against the fixed support structure 5.
The electrical/pneumatic piping 4 connects the linear electro-magnetic ram ■ 3, and weight sensors 2 to the controller unit housing 16. The controller unit housing 16 consists of a sealed weather tight cabinet with controller electronics 9 and the pneumatic controller system 10 inside. The controller unit housing 16 is mounted on a steel mounting post 17, fixed to the ground 11.
The linear electro-magnetic ram 3 works like a rotary stepping motor but instead of rotating, the ram moves in a jacking motion and extends and retracts linearly. The controller 9 and 10 can step the motor a- fraction of an inch for each step. With this fractional movement and by varying the stepping rate, the motor can move to precise positions at various speeds. Adjusting the power applied for each step, the force of the movement can be controlled in minute steps. By controlling the stepping rate and the power applied, a smooth movement can be applied to the downhole reciprocating pump with controlled acceleration and deceleration to keep stresses on the sucker rod string
12 to a minimum.
The weight sensors 2 are monitored by the control electronics 9 during the movement of the linear electro¬ magnetic ram 3. If the stress on the pump increases close to the programmed limits, the control electronics 9 will reduce the power applied to the linear electro-magnetic ram 3 protecting all components on/in the well l and attached pipeline infrastructure. If a fault causes excessive mechanical stresses, the control electronics 9 will stop the linear electro-magnetic ram 3 to wait for an operator to assess the problem. The flow from the well is monitored by a flow meter 18. This meter can be any conventional meter such as a turbine or paddle wheel meter which outputs a signal proportional to the flow through the pipeline 19.
The controller software (not shown) can be programmed to optimize flow by varying downhole reciprocating pump stroke speed and length. The control software can vary stroke speed/length. Limits can easily' be placed on all pump jack parameters as required. For poor producing wells, the control software will see the flow dropping off after a time and reduce either/or the downhole pump speed or length of stroke. The software can also be programmed to give a poor flowing well or "gas locked" reciprocating down hole pump more recovery time by stopping the stroke for a period of time until the formation recovers or until the pump hydrostatically fills with fluid and expels the gas lock.
In summary, a number of convenient features result from the arrangement, namely:
a) flow optimization by monitoring fluid flow through a flow meter and controlling the downhole reciprocating pump stroke parameters;
b) protect the sucker rod and downhole pump from excessive mechanical forces by monitoring the weight of the pump assembly;
c) detection of common pumping problems;
d) shutdown if 'a fault is detected in the downhole pump ass.embly such as an increase in pump assembly weight;
e) shutdown if a fault is detected in a reduction in pump assembly weight;
f) monitor electrical energy use and slow the motor speed if the motor is reaching the maximum configured energy limit; and
g) control the acceleration and deceleration of the downhole pump assembly to keep stress to a minimum;
h) Controller could be programmed to provide a dynamometer card to enhance well optimization.
i) Up to the minute production will be flow tested to ensure downhole reciprocating pump remains free of any cavitation and eliminate what is known in the art as "fluid pounding" or "fluid hammer".
Although embodiments of the invention have been described above, it is not limited thereto and it will be apparent to those skilled in the art that numerous modifications form part of the present invention insofar as they do not depart from the spirit, nature and scope of the claimed and described invention.
Claims
1. An apparatus for pumping fluid from an oil well, characterized in that said apparatus comprises:
a pump jack apparatus having a well head positioned over a well, a pump disposed within said well and a support structure for supporting said pump and said well head;
an electromagnetic ram connected to said pump and said support structure for controlling movement of said pump; and
control means for controlling said electromagnetic ram during pumping of oil from within said well.
2. The apparatus as set forth in claim 1, characterized in that said electromagnetic ram is actuated electrically.
3. The apparatus as set forth in claim 1, characterized in that said electromagnetic ram is actuated pneumatically.
4. The apparatus as set forth in claim 1, characterized in that said support structure includes sensor means for sensing movement of said electromagnetic ram.
5. The apparatus as set forth in claim 4, characterized in that said sensor means includes said control means.
6. The apparatus as set forth in claim 1, characterized in that said apparatus further includes a flow meter for monitoring flow of oil from said well.
7. An apparatus suitable for use in an oil well for pumping fluid from an oil well, characterized in that said apparatus comprises :
a well head;
a support structure connected to said well head;
an electromagnetic ram connected to said support structure;
a polish rod connected to said electromagnetic ram;
pump means connected to said polish rod for pumping said fluid from said well; and
conduit means for transporting recovered fluid pumped from said well .
8. The apparatus as set forth in claim 7, characterized in that said ram is a pneumatic/electromagnetic ram.
9. The apparatus as set forth in claim 7, characterized in that said pump jack further includes actuation means for actuating said electromagnetic ram.
10. The apparatus as set forth in claim 9, characterized in that said actuation means for actuating said electromagnetic ram comprises an electrical power system.
11. The apparatus as set forth in claim 9, characterized in that said actuation means for actuating said electromagnetic ram comprises a pneumatic system.
12. A method of pumping fluid from an oil well containing fluid, where said well includes:
a well head positioned over a well;
a pump disposed within said well; and
a support structure for supporting said pump and said well ήead, characterized in that said method comprises:
providing an electromagnetic ram connected to said pump;
actuating said electromagnetic ram; and
pumping fluid from within said well.
13. The method as set forth in claim 12, characterized in that said method further includes the step of controlling the movement of said pump by movement of said electromagnetic ram with controller means.
14. The method as set forth in claim 12, characterized in that said ram is actuated electrically.
15. The method as set forth in claim 12, characterized in that said method further includes sensing stress at said pump.
16. The method as set forth in claim 15, characterized in that said method further includes controlling movement of said electromagnetic ram in response to said stress at said pump.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2007002252A MX2007002252A (en) | 2004-08-24 | 2005-08-22 | Pump jack apparatus and pumping method. |
| GB0703303A GB2431970B (en) | 2004-08-24 | 2007-02-21 | Pump jack apparatus and pumping method |
| HK07112230.8A HK1105444A1 (en) | 2004-08-24 | 2007-11-09 | Pump jack apparatus and pumping method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60356304P | 2004-08-24 | 2004-08-24 | |
| US60/603,563 | 2004-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006021079A1 true WO2006021079A1 (en) | 2006-03-02 |
Family
ID=35874848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CA2005/001271 WO2006021079A1 (en) | 2004-08-24 | 2005-08-22 | Pump jack apparatus and pumping method |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7373971B2 (en) |
| CN (1) | CN101010512A (en) |
| CA (1) | CA2516810C (en) |
| GB (1) | GB2431970B (en) |
| HK (1) | HK1105444A1 (en) |
| MX (1) | MX2007002252A (en) |
| RU (1) | RU2007110806A (en) |
| WO (1) | WO2006021079A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8619443B2 (en) | 2010-09-29 | 2013-12-31 | The Powerwise Group, Inc. | System and method to boost voltage |
| US8698446B2 (en) | 2009-09-08 | 2014-04-15 | The Powerwise Group, Inc. | Method to save energy for devices with rotating or reciprocating masses |
| US8698447B2 (en) | 2007-09-14 | 2014-04-15 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
| US8723488B2 (en) | 2007-08-13 | 2014-05-13 | The Powerwise Group, Inc. | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation |
| US8823314B2 (en) | 2007-09-14 | 2014-09-02 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080010020A1 (en) * | 2006-07-10 | 2008-01-10 | Daniel Measurement And Control, Inc. | Method and System of Diagnosing Production Changes |
| US20100310385A1 (en) * | 2007-09-25 | 2010-12-09 | Crostek Management Corp a corporation | Artificial Lift Mechanisms |
| GB2459082B (en) * | 2008-02-19 | 2010-04-21 | Phillip Raymond Michael Denne | Improvements in artificial lift mechanisms |
| US8176975B2 (en) * | 2008-04-07 | 2012-05-15 | Baker Hughes Incorporated | Tubing pressure insensitive actuator system and method |
| US8662187B2 (en) * | 2009-08-13 | 2014-03-04 | Baker Hughes Incorporated | Permanent magnet linear motor actuated safety valve and method |
| US8398050B2 (en) * | 2009-08-13 | 2013-03-19 | Baker Hughes Incorporated | Hold open configuration for safety valve and method |
| CA2675497A1 (en) * | 2009-08-18 | 2011-02-18 | Tcb Welding And Construction Ltd. | Switching assembly for a hydraulic pump jack |
| US8267167B2 (en) * | 2009-11-23 | 2012-09-18 | Baker Hughes Incorporated | Subsurface safety valve and method of actuation |
| US8393386B2 (en) * | 2009-11-23 | 2013-03-12 | Baker Hughes Incorporated | Subsurface safety valve and method of actuation |
| US8844626B1 (en) | 2010-09-28 | 2014-09-30 | Rodmax Oil & Gas, Inc. | Method and apparatus for autonomous oil and gas well down-hole pump leakage testing |
| BR112014010986B1 (en) | 2011-11-08 | 2021-05-25 | Lufkin Industries, Inc | device for actuating a rod and method of pumping a fluid |
| CA2843321C (en) | 2014-02-21 | 2015-02-17 | Fluica Inc. | Method and apparatus for pumping fluid |
| US9745975B2 (en) | 2014-04-07 | 2017-08-29 | Tundra Process Solutions Ltd. | Method for controlling an artificial lifting system and an artificial lifting system employing same |
| CN105178917A (en) * | 2014-06-06 | 2015-12-23 | 程丹秀 | Hydraulic reciprocating single-cylinder pumping unit |
| US9677390B2 (en) * | 2014-12-04 | 2017-06-13 | Amik Oilfield Equipment And Rentals Ltd. | Reciprocating pump drive assembly |
| US10196883B2 (en) | 2015-01-09 | 2019-02-05 | Weatherford Technology Holdings, Llc | Long-stroke pumping unit |
| US10246976B2 (en) * | 2015-01-27 | 2019-04-02 | Conocophillips Company | Linear induction motor plunger lift |
| CA3154207C (en) | 2015-01-29 | 2024-01-23 | Weatherford Technology Holdings, Llc | Long stroke pumping unit |
| WO2016137986A2 (en) | 2015-02-23 | 2016-09-01 | Weatherford Technology Holdings, Llc | Long-stroke pumping unit |
| US10626683B2 (en) | 2015-08-11 | 2020-04-21 | Weatherford Technology Holdings, Llc | Tool identification |
| US10465457B2 (en) | 2015-08-11 | 2019-11-05 | Weatherford Technology Holdings, Llc | Tool detection and alignment for tool installation |
| US10197050B2 (en) | 2016-01-14 | 2019-02-05 | Weatherford Technology Holdings, Llc | Reciprocating rod pumping unit |
| US10544631B2 (en) | 2017-06-19 | 2020-01-28 | Weatherford Technology Holdings, Llc | Combined multi-coupler for top drive |
| US10527104B2 (en) | 2017-07-21 | 2020-01-07 | Weatherford Technology Holdings, Llc | Combined multi-coupler for top drive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5196770A (en) * | 1988-12-12 | 1993-03-23 | Marine And Petroleum Equipment | Vertically reciprocating constant power drive unit for raising a load step by step |
| CA2250739A1 (en) * | 1996-03-29 | 1997-10-09 | Davor Jack Raos | Sucker rod pump actuating device |
| US5960875A (en) * | 1996-03-29 | 1999-10-05 | Elf Exploration Production | Electric pump having a linear motor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3405605A (en) * | 1966-06-14 | 1968-10-15 | Milburn M. Ross | Hydraulic pump jack means |
| US4114375A (en) | 1976-04-09 | 1978-09-19 | Canadian Foremost Ltd. | Pump jack device |
| US4102394A (en) * | 1977-06-10 | 1978-07-25 | Energy 76, Inc. | Control unit for oil wells |
| US4201115A (en) | 1978-07-11 | 1980-05-06 | Ogles Ethridge F | Oil well pump jack with dual hydraulic operating cylinders |
| US4438628A (en) * | 1980-12-19 | 1984-03-27 | Creamer Reginald D | Pump jack drive apparatus |
| US4463828A (en) | 1981-12-18 | 1984-08-07 | Carl Anderson | Pump jack |
| US4501119A (en) * | 1983-02-28 | 1985-02-26 | Nujack Oil Pump Company | Pump jack |
| US4687054A (en) * | 1985-03-21 | 1987-08-18 | Russell George W | Linear electric motor for downhole use |
| US4768595A (en) * | 1986-04-07 | 1988-09-06 | Marathon Oil Company | Oil recovery apparatus using an electromagnetic pump drive |
| CA2222459A1 (en) * | 1997-11-25 | 1999-05-25 | Dennis Lehar | The hydrostatic oil well pump jack |
| US6280000B1 (en) * | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
-
2005
- 2005-08-22 MX MX2007002252A patent/MX2007002252A/en active IP Right Grant
- 2005-08-22 CA CA2516810A patent/CA2516810C/en not_active Expired - Fee Related
- 2005-08-22 WO PCT/CA2005/001271 patent/WO2006021079A1/en active Application Filing
- 2005-08-22 RU RU2007110806/06A patent/RU2007110806A/en not_active Application Discontinuation
- 2005-08-22 CN CNA2005800284252A patent/CN101010512A/en active Pending
- 2005-08-23 US US11/208,646 patent/US7373971B2/en not_active Expired - Fee Related
-
2007
- 2007-02-21 GB GB0703303A patent/GB2431970B/en not_active Expired - Fee Related
- 2007-11-09 HK HK07112230.8A patent/HK1105444A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5196770A (en) * | 1988-12-12 | 1993-03-23 | Marine And Petroleum Equipment | Vertically reciprocating constant power drive unit for raising a load step by step |
| CA2250739A1 (en) * | 1996-03-29 | 1997-10-09 | Davor Jack Raos | Sucker rod pump actuating device |
| US5960875A (en) * | 1996-03-29 | 1999-10-05 | Elf Exploration Production | Electric pump having a linear motor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8723488B2 (en) | 2007-08-13 | 2014-05-13 | The Powerwise Group, Inc. | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation |
| US9716431B2 (en) | 2007-08-13 | 2017-07-25 | The Powerwise Group, Inc. | IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation |
| US8698447B2 (en) | 2007-09-14 | 2014-04-15 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
| US8823314B2 (en) | 2007-09-14 | 2014-09-02 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
| US9628015B2 (en) | 2007-09-14 | 2017-04-18 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
| US9716449B2 (en) | 2007-09-14 | 2017-07-25 | The Powerwise Group, Inc. | Energy saving system and method for devices with rotating or reciprocating masses |
| US8698446B2 (en) | 2009-09-08 | 2014-04-15 | The Powerwise Group, Inc. | Method to save energy for devices with rotating or reciprocating masses |
| US9240745B2 (en) | 2009-09-08 | 2016-01-19 | The Powerwise Group, Inc. | System and method for saving energy when driving masses having periodic load variations |
| US8619443B2 (en) | 2010-09-29 | 2013-12-31 | The Powerwise Group, Inc. | System and method to boost voltage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101010512A (en) | 2007-08-01 |
| US7373971B2 (en) | 2008-05-20 |
| GB2431970A (en) | 2007-05-09 |
| GB0703303D0 (en) | 2007-03-28 |
| HK1105444A1 (en) | 2008-02-15 |
| CA2516810A1 (en) | 2006-02-24 |
| CA2516810C (en) | 2010-08-10 |
| GB2431970B (en) | 2010-03-17 |
| US20060045769A1 (en) | 2006-03-02 |
| MX2007002252A (en) | 2007-04-20 |
| RU2007110806A (en) | 2008-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7373971B2 (en) | Pump jack and method of use | |
| US8851860B1 (en) | Adaptive control of an oil or gas well surface-mounted hydraulic pumping system and method | |
| US8152492B2 (en) | Linear rod pump apparatus and method | |
| EP2209994B1 (en) | Cranked rod pump apparatus and method | |
| CA2697984C (en) | Artificial lift mechanisms | |
| US10788029B2 (en) | Method and system for energy recovery from a rod pump | |
| CN204436373U (en) | A kind of underground high-power is powered mud signal generator | |
| CN108798612B (en) | Intelligent control method of rodless oil well lifting system | |
| US20150078926A1 (en) | Regenerative hydraulic lift system | |
| CN105156059A (en) | Automatic screwing device of oil pumping machine packing and with remote monitoring function | |
| US5827051A (en) | Regenerative hydraulic power transmission for down-hole pump | |
| WO2014174266A2 (en) | Data communications system | |
| CN102168541A (en) | Linear driving device for oil and gas production | |
| CN100410535C (en) | Fishable linear motor reciprocating pump | |
| CN201528297U (en) | Motor starting device of oil extractor | |
| CN101702602B (en) | Motor starting device of oil extractor | |
| EP2035702B1 (en) | Linear rod pump apparatus and method | |
| CN1673534A (en) | Well dynamic direct-driven plunger oil-well pump | |
| CN201255097Y (en) | Electric submersible screw pump oil production installation | |
| RU20137U1 (en) | INSTALLATION FOR LIFTING WATER FROM THE ARTESIAN WELL | |
| CN2773345Y (en) | Plunger-type oil-well pump with direct underground dynamic drive | |
| CN205478156U (en) | Aboveground hydraulic pump | |
| Chen et al. | Review of electrical machine in downhole applications and the advantages | |
| CN102094797A (en) | Rodless electric submersible hydraulic propulsion plunger type deep-well defueling pump | |
| CN2526554Y (en) | Electric oil submersible screw pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
| ENP | Entry into the national phase |
Ref document number: 2007 200700127 Country of ref document: RO Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 263/MUMNP/2007 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 0703303 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20050822 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 0703303.8 Country of ref document: GB |
|
| WWE | Wipo information: entry into national phase |
Ref document number: MX/a/2007/002252 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 200580028425.2 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2007110806 Country of ref document: RU Kind code of ref document: A |
|
| 122 | Ep: pct application non-entry in european phase |