CN2467821Y - Beam-pumping unit driven by linear motor - Google Patents

Beam-pumping unit driven by linear motor Download PDF

Info

Publication number
CN2467821Y
CN2467821Y CN01204055U CN01204055U CN2467821Y CN 2467821 Y CN2467821 Y CN 2467821Y CN 01204055 U CN01204055 U CN 01204055U CN 01204055 U CN01204055 U CN 01204055U CN 2467821 Y CN2467821 Y CN 2467821Y
Authority
CN
China
Prior art keywords
chain
mover
sprocket wheel
oil
pumping unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN01204055U
Other languages
Chinese (zh)
Inventor
周小稀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN01204055U priority Critical patent/CN2467821Y/en
Application granted granted Critical
Publication of CN2467821Y publication Critical patent/CN2467821Y/en
Priority to PCT/US2002/006151 priority patent/WO2002068788A2/en
Priority to PCT/CN2002/000111 priority patent/WO2002075105A1/en
Priority to US10/469,070 priority patent/US7001157B2/en
Priority to AU2002303108A priority patent/AU2002303108A1/en
Priority to US10/469,112 priority patent/US20060233650A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/14Counterbalancing
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • E21B43/126Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042Pumps 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/02Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Linear Motors (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

The utility model relates to an oil well pumping machine with a linear motor as the motive power, which is composed of a guide rail supporting frame (11), a mover (8), a stator (9), a chain, a chain wheel, and a balance weight. The utility model is characterized in that the stator (9) is fixed on the guide rail supporting frame (11), and the mover (8) slides in the guide rail supporting frame (11); the top of the guide rail supporting frame (11) is provided with the chain wheel (4), one end of the chain (3) is connected with the upper part of the mover (8), and the other end is connected with an oil pumping polished rod (2); the lower end of the mover (8) is connected with the balance weight the chain (6); the balance weight chain (6) is connected with a balancing weight (7) through the chain wheel (10) on the bottom of the supporting frame and the balance weight chain wheel (5) on the top of the supporting frame (11). Installed beside a well head, the oil pumping machine made by adopting the technology can has the advantages that convenience is brought to the well head work, accidents are decreased, and the present status of the oil producing well head is not changed.

Description

The pumping unit of linear motor driving
The utility model belongs to technical field of petroleum extraction, is that a kind of what be arranged on ground is the pumping unit of well of power with linear electric motor.
Now, what the pumping unit overwhelming majority in oil well ground adopted is that electric rotating machine is a power, by retarder and rotation motion to linear device, drives oil pumping polish rod and sucker rod and pumps, and drive the purpose that the down-hole oil production pump reaches oil recovery.The pumping unit that with the electric rotating machine is power is bulky, complex structure, and consumed power is many.Chinese patent application number is 96217638.9 utility model patent, discloses a kind of " adopting the pumping unit of linear motor driving ".What this technological scheme adopted is that linear electric motor connect and driving sucker rod and oil extraction pump, has reduced retarder and rotation motion to linear device, and the pumping unit that has overcome existing electric rotating machine drive is bulky, complex structure, shortcomings such as big energy-consuming.This technology adopts linear motor driving, is a reasonable technological scheme.The feature of this technological scheme is: be made up of down-hole oil production pump, sucker rod and power plant, derrick, several parts of balancing weight.Power plant adopt linear electric motor, and linear motor stator electric is fixed on the wellhead assembly together with the longitudinal spacing post, and the mover upper and lower end is fixed with positioning block, leans against slidably on the edge-on limited post, is fixed with damping spring on wellhead assembly and the limited post respectively.Linear motor rotor is a hollow structure, and the center is by there being sucker rod.Sucker rod is fixed on the mover of linear electric motor together with deck.Derrick is provided with the weight balance device pulley.The wire rope two ends connect deck and balancing weight respectively by pulley.This technological scheme, linear motor stator electric is fixed on the wellhead assembly together with limited post, and a lot of inevitably shortcomings are arranged.When 1, the mover of linear electric motor pumped, the inevitable generation vibrated, and makes the linear motor driving pumping unit vibrate simultaneously.Stator and limited post are fixed on the wellhead assembly, drive the wellhead assembly vibration during mover motion, cause wellhead assembly to leak crude oil and rock gas.Even be not because vibration produces the wellhead assembly leakage, in mechanical oil pumping process, wellhead assembly produces oil, gas leakage is recurrent.If generation natural gas leaking, linear electric motor are fixed on the wellhead assembly, rock gas can directly diffuse into linear electric motor, can produce unsafe hidden danger.2, linear electric motor are fixed on the wellhead assembly, occupy pithead position, cause many difficulties can for the oil well shaft mouth operation.As change shaft mouth operations such as packing box, packing.3, linear electric motor are fixed on the wellhead assembly, and motor produces vibration, and wellhead assembly connects underground bushing, makes underground bushing be vibrated, and cause stratum vibration casing deformation.4, linear electric motor are fixed on the wellhead assembly, and wellhead assembly can not bear extraneous big pressure.If linear electric motor are fixed on the well head, match with regard to needing to redesign, make the wellhead assembly that can bear big pressure, increase oil production equipment cost input.
The purpose of this utility model is: linear electric motor are removed from wellhead assembly, can be produced hidden danger when solving the well head natural gas leaking; Solve linear electric motor and be fixed on the wellhead assembly, occupy pithead position, cause many difficult problems for the oil well shaft mouth operation; Solve the shortcoming that motor oscillating drives the underground bushing vibration; Do not change on-the-spot wellhead assembly, solve the wellhead assembly problem that bears immense pressure.With the rail brackets of linear electric motor, replace derrick.
The utility model is achieved in that a kind of pumping unit of linear motor driving that adopts is made up of institutes such as rail brackets, electric mover, motor stator, chain, sprocket wheel and balancing weights, it is characterized in that: rail brackets is a frame shape, motor stator is fixed on the rail brackets inboard, and the rail brackets inboard is fixed with the electric mover guide slide.The slide block that cooperates with slideway is arranged on the electric mover.The roof anchorage of rail brackets has sprocket wheel.Chain is by sprocket wheel, and an end is fixed on electric mover top, and the other end is connected with oil pumping polish rod in the well mouth of oil well device.The electric mover bottom is connected with counterweight chain one end.The counterweight chain is by the counterweight sprocket wheel of a frame bottom sprocket wheel and a top of the trellis, and the other end connects balancing weight.Sprocket wheel among the application can be substituted by pulley, and its chain changes wire rope accordingly into.Sprocket wheel and chain or pulley and wire rope, this dual mode all belongs to the application's technological scheme.
Adopt the advantage of technical solutions of the utility model to be, linear motor rotor top has chain to connect, and chain is by sprocket wheel, and the other end is connected with the oil well oil-pumping polished rod.Wellhead assembly separates with linear electric motor with sucker rod, and linear electric motor are removed from wellhead assembly, and during the well head natural gas leaking, rock gas can directly not enter in the linear electric motor, has solved the hidden danger in producing.Linear electric motor are not installed on the wellhead assembly, still adopt on-the-spot original wellhead assembly, the workman when shaft mouth operation, with electric rotating machine be that the pumping unit of power is convenient equally.Linear electric motor produce vibration in when work, can not influence underground bushing and solve the wellhead assembly problem that bears immense pressure.With the rail brackets of linear electric motor, replace the pumping unit structure that derrick has also been simplified linear motor driving.
The application description of drawings: illustrations is the pumping unit structural representation of linear motor driving, is a kind of embodiment of the application.Wellhead assembly (1) and oil pumping polish rod (2) are the necessarieses on the oil well, do not belong to technical scope of the present utility model.Shown in the figure: (3)-chain, (4)-sprocket wheel, (5)-counterweight sprocket wheel, (6)-counterweight chain, (7)-balancing weight, (8) electric mover, (9) motor stator, (10) frame bottom sprocket wheel, (11)-rail brackets.
In conjunction with the accompanying drawings the utility model structural feature is further specified.
Embodiment 1:
Its rail brackets of the pumping unit of linear motor driving (11) is that two channel beams are made, and there is crossbeam the centre, forms frame structure.Frame structure can be welding, also can make with the bolt method.For making frame structure have stability, can replace channel-section steel with I-steel and steel plate welding.Four guide slides that are welded with angle bar are arranged in the rail brackets inboard.Guide slide is to be control electric mover (8) moving direction.The stator of linear electric motor (9) is made up of six groups of square coil windings, is separately fixed at rail brackets (11) column both sides.Mover (8) is installed in the middle of the stator (9) of six groups of coil winding, is fixed with eight slide blocks on the mover (8) and guide slide is slidingly matched.Mover (8) is gone up eight fixing slide blocks and can be replaced with roller, and rolling with guide slide cooperates, and finishes the guiding of mover (8).The roof anchorage of rail brackets (11) has two sprocket wheels (4), and sprocket wheel (4) diameter is 500 millimeters.Chain (3) one ends are fixed on electric mover (8) top, and by the sprocket wheel (4) at support (11) top, the other end is connected with oil pumping polish rod (2) in the well mouth of oil well device.Electric mover (8) bottom is connected with counterweight chain (6) one ends, and the other end of counterweight chain (6) connects balancing weight (7) by the counterweight sprocket wheel (5) of a frame bottom sprocket wheel (10) and a top of the trellis.The weight of balancing weight (7) will adapt to the requirement of oil well.
Embodiment 2:
Its rail brackets of the pumping unit of linear motor driving (11) and embodiment 1 are basic identical.Difference: the roof anchorage of rail brackets (11) has two pulleys (4), and pulley (4) diameter is 500 millimeters.With diameter is that 25 millimeters wire rope replaces chain (3), and wire rope (3) one ends are fixed on electric mover (8) top, and by the pulley (4) at support (11) top, the other end is connected with oil pumping polish rod (2) in the well mouth of oil well device.The fixing counterweight chain (6) in electric mover (8) bottom changes wire rope (6) into, and the other end of counterweight wire rope (6) connects balancing weight (7) by the counterweight pulley (5) of a frame bottom pulley (10) and a top of the trellis.This is that two groups of sprocket wheels and chain are replaced by pulley and wire rope simultaneously, also can only change wherein one group, does not influence effect of the present utility model.

Claims (3)

1, a kind of pumping unit of linear motor driving is by rail brackets (11), electric mover (8), motor stator (9), chain (3) (6), sprocket wheel (4) (5) and balancing weight (7) etc. are formed, it is characterized in that: rail brackets (11) is frame structure, motor stator (9) is fixed on rail brackets (11) inboard, rail brackets (11) inboard is fixed with electric mover (11) guide slide, electric mover has slide block on (8), the roof anchorage of rail brackets (11) has sprocket wheel (4), chain (3) is by sprocket wheel (4), one end is fixed on electric mover (8) top, the other end is connected with oil pumping polish rod (2) in the well mouth of oil well device (1), electric mover (8) lower end is connected with counterweight chain (6) one ends, counterweight chain (6) the other end connects balancing weight (7) by the counterweight sprocket wheel (5) at support (11) bottom sprocket wheel (10) and support (11) top.
2, the pumping unit of linear motor driving as claimed in claim 1 is characterized in that: sprocket wheel (4), (5), (10) are pulleys, and its chain (3), (6) should be wire rope mutually.
3, the pumping unit of linear motor driving as claimed in claim 1 or 2 is characterized in that: it is roller that electric mover (8) is gone up the slide block that cooperates with slideway.
CN01204055U 2001-02-26 2001-02-26 Beam-pumping unit driven by linear motor Expired - Lifetime CN2467821Y (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN01204055U CN2467821Y (en) 2001-02-26 2001-02-26 Beam-pumping unit driven by linear motor
PCT/US2002/006151 WO2002068788A2 (en) 2001-02-26 2002-02-25 Well pumping unit driven by linear motor
PCT/CN2002/000111 WO2002075105A1 (en) 2001-02-26 2002-02-25 A pumping unit driven by a linear electric motor
US10/469,070 US7001157B2 (en) 2001-02-26 2002-02-25 Well pumping unit driven by linear motor
AU2002303108A AU2002303108A1 (en) 2001-02-26 2002-02-25 Well pumping unit driven by linear motor
US10/469,112 US20060233650A1 (en) 2001-02-26 2002-02-25 Pumping unit driven by a linear electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN01204055U CN2467821Y (en) 2001-02-26 2001-02-26 Beam-pumping unit driven by linear motor

Publications (1)

Publication Number Publication Date
CN2467821Y true CN2467821Y (en) 2001-12-26

Family

ID=4681308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN01204055U Expired - Lifetime CN2467821Y (en) 2001-02-26 2001-02-26 Beam-pumping unit driven by linear motor

Country Status (4)

Country Link
US (1) US20060233650A1 (en)
CN (1) CN2467821Y (en)
AU (1) AU2002303108A1 (en)
WO (2) WO2002075105A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100337035C (en) * 2004-04-09 2007-09-12 周小稀 Linear dynamo pumping unit with built-in stator
CN100458098C (en) * 2005-04-15 2009-02-04 哈尔滨三方直线电磁技术有限公司 Linear electromagnetic pumping unit
WO2010063171A1 (en) * 2008-12-03 2010-06-10 陈达康 A top mounted tower type nc pumping unit
CN104047577A (en) * 2014-05-28 2014-09-17 河南理工大学 Linear motor direct-driven pumping unit
CN104160151A (en) * 2012-03-09 2014-11-19 Dc创新股份有限公司 Counterweighted pump jack with reversible motors
CN116146154A (en) * 2023-04-24 2023-05-23 沈阳德尔福科技有限公司 Intelligent crank type belt pumping unit
CN116591642A (en) * 2023-05-22 2023-08-15 东营市金亿来石油机械有限公司 Vertical pumping unit for petroleum exploitation

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413387B (en) * 2008-12-03 2011-11-23 毛宏伟 Tower rack type combined transmission oil pumping machine
CN101718188B (en) * 2009-12-25 2013-01-23 浙江西子富沃德电机有限公司 Tower-type pulley block transmission oil jack
CN102392620A (en) * 2011-09-23 2012-03-28 李世龙 Wheel type intelligent pumping unit
CN102817587B (en) * 2011-11-15 2015-05-27 中国石油大学(华东) Direct drive motor pumping unit
CN103195395A (en) * 2012-01-10 2013-07-10 张宏伟 Torque-conversion type energy-saving pumping unit
CN102733782B (en) * 2012-01-16 2015-05-06 唐大春 Lubrication-free chain oil pumping unit for oil production in oil field
CN103806874A (en) * 2012-11-07 2014-05-21 昆山航天林泉电机有限公司 Guide post provided with T-shaped guide rails and used for vertical type pumping unit
CN102926714A (en) * 2012-11-14 2013-02-13 濮阳市军胜实业有限公司 Pumping unit chain transmission device and application method
CN103867164B (en) * 2012-12-11 2016-10-05 李江保 A kind of long stroke pumping unit
CN103821480B (en) * 2013-04-07 2017-07-04 耿载光 Travelling counterweight double drum type petroleum extractor
CN103835682B (en) * 2014-03-27 2016-04-06 雍生才 New Power Saving Pumping Unit and oil pumping method
CN104005738A (en) * 2014-06-16 2014-08-27 福建省意科电气科技有限公司 Tower type oil pumping unit
CN104612633A (en) * 2015-01-20 2015-05-13 胜利油田新大管业科技发展有限责任公司 Device and method for driving chain reversing pumping unit
US10400761B2 (en) 2015-01-29 2019-09-03 Weatherford Technology Holdings, Llc Long stroke pumping unit
US10113544B2 (en) * 2015-02-23 2018-10-30 Weatherford Technology Holdings, Llc Long-stroke pumping unit
CN105019867B (en) * 2015-07-23 2017-10-13 浙江西传电气科技有限公司 A kind of belt slows down and the high-efficiency pumping unit with single movable pulley
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
US10167671B2 (en) 2016-01-22 2019-01-01 Weatherford Technology Holdings, Llc Power supply for a top drive
US10702844B2 (en) * 2016-03-29 2020-07-07 Dmytro KHACHATUROV Linear permanent magnet motor driven downhole plunger pumping unit
CN105863572B (en) * 2016-05-10 2018-08-10 北京高和华泰节能环保科技有限公司 Intelligent controlling system for beam-pumping unit and its oil pumping intelligent control method
US11131151B2 (en) 2017-03-02 2021-09-28 Weatherford Technology Holdings, Llc Tool coupler with sliding coupling members for top drive
US10443326B2 (en) 2017-03-09 2019-10-15 Weatherford Technology Holdings, Llc Combined multi-coupler
CN107013188A (en) * 2017-05-16 2017-08-04 重庆排绳利科技有限公司 A kind of reciprocating flexible drawing oil pumping mechanism
US10711574B2 (en) 2017-05-26 2020-07-14 Weatherford Technology Holdings, Llc Interchangeable swivel combined multicoupler
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
US11441412B2 (en) 2017-10-11 2022-09-13 Weatherford Technology Holdings, Llc Tool coupler with data and signal transfer methods for top drive
CN108843284A (en) * 2018-07-11 2018-11-20 重庆科技学院 A kind of draining mechanism of flexible drawing pumping unit
CN110173237B (en) * 2019-05-21 2022-02-01 大庆丹诺石油科技开发有限公司 Well workover guide roller abdication mechanism
CN110608015A (en) * 2019-10-10 2019-12-24 苏贻新 Wheel shaft type beam energy-saving pumping unit
CN111810089B (en) * 2020-06-19 2022-08-30 合立智能装备有限责任公司 Automatic stepless speed regulation vertical oil pumping machine and automatic stepless speed regulation control method of oil pumping machine
CN111810090B (en) * 2020-06-19 2022-08-30 合立智能装备有限责任公司 Vertical rope chain transmission oil pumping unit
CN111980634B (en) * 2020-09-08 2021-09-24 张军 Tractor tower type oil pumping unit device
CN112211596A (en) * 2020-11-04 2021-01-12 大庆石油管理局有限公司 Front-mounted oil pumping machine using speed reducer and motor as balance weight

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161137A (en) * 1977-03-14 1979-07-17 Gaddy Arthur K Rocker wheel jack for an oil-well pump
US4719811A (en) * 1985-02-25 1988-01-19 Rota-Flex Corporation Well pumping unit with counterweight
CN2112684U (en) * 1991-05-29 1992-08-12 机械电子工业部郑州机械研究所 Long stroke platform drum oil pump
US5409356A (en) * 1992-06-11 1995-04-25 Massie; Lewis E. Well pumping system with linear induction motor device
CN1031354C (en) * 1992-07-05 1996-03-20 胜利石油管理局采油工艺研究院 Chain type long stroke oil pumping machine
FR2746858B1 (en) * 1996-03-29 2001-09-21 Elf Aquitaine LINEAR MOTOR ELECTRIC PUMP
US6213722B1 (en) * 1996-03-29 2001-04-10 Davor Jack Raos Sucker rod actuating device
CN2284867Y (en) * 1996-07-22 1998-06-24 孙平 Linear motor driven beam-pumping unit
CN2412105Y (en) * 1999-12-17 2000-12-27 大港油田集团钻采工艺研究院 Linear motor driven non-beam pumping unit
CN2411356Y (en) * 2000-02-17 2000-12-20 沈阳市真空机械三厂 Long-pumping-process non-beam beam-pumping unit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100337035C (en) * 2004-04-09 2007-09-12 周小稀 Linear dynamo pumping unit with built-in stator
CN100458098C (en) * 2005-04-15 2009-02-04 哈尔滨三方直线电磁技术有限公司 Linear electromagnetic pumping unit
WO2010063171A1 (en) * 2008-12-03 2010-06-10 陈达康 A top mounted tower type nc pumping unit
CN104160151A (en) * 2012-03-09 2014-11-19 Dc创新股份有限公司 Counterweighted pump jack with reversible motors
CN104047577A (en) * 2014-05-28 2014-09-17 河南理工大学 Linear motor direct-driven pumping unit
CN116146154A (en) * 2023-04-24 2023-05-23 沈阳德尔福科技有限公司 Intelligent crank type belt pumping unit
CN116591642A (en) * 2023-05-22 2023-08-15 东营市金亿来石油机械有限公司 Vertical pumping unit for petroleum exploitation
CN116591642B (en) * 2023-05-22 2023-11-24 东营市金亿来石油机械有限公司 Vertical pumping unit for petroleum exploitation

Also Published As

Publication number Publication date
WO2002075105A1 (en) 2002-09-26
AU2002303108A1 (en) 2002-09-12
WO2002068788A3 (en) 2003-04-24
US20060233650A1 (en) 2006-10-19
WO2002068788A2 (en) 2002-09-06

Similar Documents

Publication Publication Date Title
CN2467821Y (en) Beam-pumping unit driven by linear motor
CN112302609B (en) Fracturing manifold composed of vibration damper
CN102155191A (en) Split twin-well pumping unit
CN1970988A (en) Dual-cylinder double-effect power-saving economical pumping unit for use in steel strip reciprocating type ultra-long-stroke pumping device
CN104632139A (en) Rodless oil extraction device driven by underground permanent magnet linear motor
CN2412105Y (en) Linear motor driven non-beam pumping unit
CN201092849Y (en) Chain type double-well oil pump
US4306463A (en) Long stroke pump jack
CN201047344Y (en) Straight-line balance type long stroke energy-saving oil pumping machine
CN203161183U (en) Long-stroke chain-type oil pumping unit
CN202325429U (en) Long-stroke dual-well oil pumping unit
CN2544097Y (en) Cylinder type straight line motor driven oil suction machine
CN204532287U (en) A kind of double rack tower-type pumping unit
CN201420543Y (en) Double-well oil pumping machine
CN2284867Y (en) Linear motor driven beam-pumping unit
CN202064904U (en) Separate dual-well oil pumping machine
CN2929174Y (en) Coal layer gas pumping machine
CN221373551U (en) Split long-stroke secondary balance double-well pumping unit
CN102041978B (en) Rod hiding type oil pumping unit
CN202284463U (en) Crank-slider type pumping unit
CN102086761A (en) Vertical gear rack pumping unit driven by hydraulic motor
CN215632801U (en) Belt reciprocating type oil pumping and well repairing integrated machine
CN1021925C (en) Double-acting wheel pull rod type oil pumping machine
CN2271622Y (en) Double chain long stroke oil pumping machine
CN201301693Y (en) Twin-well compound-balanced beam pumping unit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20110226

Granted publication date: 20011226