CN104019019B - Energy storage type linear electric motors capsule pump - Google Patents
Energy storage type linear electric motors capsule pump Download PDFInfo
- Publication number
- CN104019019B CN104019019B CN201410227221.2A CN201410227221A CN104019019B CN 104019019 B CN104019019 B CN 104019019B CN 201410227221 A CN201410227221 A CN 201410227221A CN 104019019 B CN104019019 B CN 104019019B
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- capsule
- pump
- cylinder body
- inlet valve
- hydraulic oil
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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
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of energy storage type linear electric motors capsule pump.Its technical scheme is to be provided with eccentric inlet valve assembly and upper capsule pump inside upper shell, and the gap between eccentric inlet valve assembly and upper shell is hydraulic oil channel, and the upper end of hydraulic oil channel is internal with upper capsule pump to be connected, and lower end connects with upper cylinder body；Described eccentric inlet valve assembly is positioned at the inner chamber eccentric part of upper shell, is well liquid passage between upper capsule pump and upper shell, and the oil pipe that the upper end of well liquid passage is connected with upper shell upper end by delivery valve connects, and the lower end of well liquid passage connects with the upper end outlet of inlet valve；Drive the plunger in cylinder body to pump by mover, promote hydraulic oil to drive the capsule breathing of upper capsule pump that well liquid is given rise to ground.Provide the benefit that: one is that upper capsule pump has intercepted well liquid and linear electric motors and secondary the contacting of hydraulic cylinder internal motion, extends the service life of pump；Two are the increase in energy storage bag, can improve the work efficiency of motor.
Description
Technical field
The present invention relates to a kind of oil field well mechanical oil recovery device, particularly to a kind of energy storage type linear electric motors capsule pump, it is adaptable to generally conventional well and containing sand grains, special oil well, inclined shaft and the horizontal well of corrosivity well liquid.
Background technology
At present, in oil exploitation, sucker rod pumping equipment occupies sizable proportion in oil extraction system, and the maximal efficiency desired value of current rod pumping system is less than 40%, and measured value only has about 20%.All ground of traditional ground electric rotating machine sucker rod pumping mode are many with underground equipment, energy loss is big, underground sucker rod with oil pumper associated working, pump load alternate causes ground system work shakiness, exacerbate the reactive power consumption of dynamical system, cause the fallback of oil extraction system, again due to sucker rod itself and well liquid friction and with the friction of tube inner wall, cause the loss of huge energy waste and oil pipe and sucker rod, and owing to well liquid contacts with movement parts, wear and tear between plunger and pump barrel, seriously corroded, pump detection period is short, particularly it is not suitable for high containing sand drain, inclined shaft and horizontal well.
Rodless pump submersible electric pump directly drives centrifugal multistage pump multiple centrifugal pump by the high-speed rotary motor in shaft bottom, and well liquid is lifted to ground.But owing to motor speed is high, discharge capacity is big, not being suitable for the middle stripper well dominated, and pump efficiency is low, centrifugeblade and pump chamber contact well liquid, damages fast, range of application is by great limitation.
Generic linear motor oil well pump (existing new technique), utilization is contained in the linear motor rotor below piston pump and drives piston to pump, down stroke drives descent of piston by mover freely falling body, and well liquid enters in pump, and one-half stroke cycle motor is idle not to do work；Driving piston stroking upward by mover during upstroke, well liquid gives rise to ground, and motor does work, i.e. motor only has the one-half stroke cycle in acting, and efficiency is low.But owing to kinematic pair contacts with well liquid, annular clearance between mover and stator is big, although motor has oneself's function placed in the middle to mover, but mover moment stops and falling on bore of stator wall at the stop conversion of upper and lower two strokes, again owing to being up stroke discharge opeing, mover axial compression stress is gradually increased from bottom to top and makes mover bend, the most serious on the top of mover, the part leaving bore of stator at mover is even more serious, and the accident damaging motor in all trouble shootings due to mover bending abrasion accounts for the overwhelming majority.
Chinese patent literature number is 1844667A, patent name is " the down-hole linear motor hydraulic-driven capsule oil well pump of band balance weight ", utilize and be contained in linear motor rotor below capsule pump and drive piston to pump to promote the hydraulic oil in hydraulic cylinder to flow into or from, force capsule breathing.When upstroke, hydraulic oil sucks hydraulic cylinder, capsule pump expansion trunk liquid enters in capsule pump, counterweight block also by while elevated storage potential energy, when down stroke, hydraulic oil is discharged from hydraulic cylinder, capsule pump shrinks well liquid and is extruded capsule pump and gives rise to ground, and counterweight block is also declined simultaneously releases potential energy, together to descending piston acting, advantage is that kinematic pair is isolated with well liquid, and it is the most flexible that mover is in extended state all the time.But owing to descending pull bar occupies piston cross-section area, making pump delivery diminish, counterweight part needs to occupy longer space, down-hole, and seal box remains and is sealed with difficulty.
Summary of the invention
The purpose of the present invention is aiming at the drawbacks described above that prior art exists, a kind of energy storage type linear electric motors capsule pump is provided, well liquid is isolated with kinematic pair, stops the sand grains in well liquid and the abrasion of corrosive goods confrontation kinematic pair, corrosion, improve motor and the work efficiency of pump.
Its technical scheme is to include shell, stator, mover, upper cylinder body, upper plug, upper capsule pump, delivery valve, motor armored cable lead-out wire, control device and upper shell, stator is connected with the control device being contained in ground by motor armored cable lead-out wire, upper cylinder body is connected with upper shell, the upper end of mover is connected with the upper plug in upper cylinder body, the lower end of described mover is connected with the lower plunger in lower cylinder body, the upper end of lower cylinder body is connected with the stator of motor, the lower end of lower cylinder body is connected with shell, the lower end of shell is provided with plug, described enclosure is provided with energy storage bag that is columnar compressible or that expand；Being provided with eccentric inlet valve assembly and upper capsule pump inside described upper shell, the gap between eccentric inlet valve assembly and upper shell is hydraulic oil channel, and the upper end of hydraulic oil channel is internal with upper capsule pump to be connected, and lower end connects with upper cylinder body；Described eccentric inlet valve assembly is positioned at the inner chamber eccentric part of upper shell, the inside of eccentric inlet valve assembly is provided with unidirectional inlet valve, it it is well liquid passage between described upper capsule pump and upper shell, the oil pipe that the upper end of well liquid passage is connected with upper shell upper end by delivery valve connects, and the lower end of well liquid passage connects with the upper end outlet of inlet valve；Upper capsule pump has intercepted contacting of well liquid and hydraulic oil, drives the plunger in cylinder body to pump by mover, promotes hydraulic oil to drive the capsule breathing of upper capsule pump that well liquid is given rise to ground.
Above-mentioned upper capsule pump includes capsule shell and the internal screen casing being provided with, and the bottom of capsule shell and the lower end of screen casing are connected with the upper end of adapter respectively, and screen casing connects with hydraulic oil channel.
The lower end of above-mentioned adapter is connected with eccentric inlet valve assembly, and eccentric side is provided with the outlet of well liquid.
It is respectively equipped with pressure release balance pipe at upper and lower cylinder body, at top dead center position, upper cylinder body, motor stator chamber and lower cylinder body is realized hydraulic oil by balance pipe and interconnect and poised state during the equipment that reaches initial servicing fluids force feed.
Above-mentioned mover is provided with multiple wall, the wall of every pair of N-S pole is that wear-resisting non-magnetic alloy processes, it is evenly distributed with, on all edges, the longitudinal direction passed through for hydraulic oil and crosses chute, it is the most staggered that the wall that each two is adjacent crosses chute, forms sliding bearing formula with motor stator and contacts cooperation.
It addition, the using method of a kind of energy storage type linear electric motors capsule pump that the present invention mentions is:
When upstroke, under the energy storage bag expansion driven compressed, hydraulic oil promotes lower plunger to move upward, mover is upwards done work by motor simultaneously, promoting upper plug to promote the hydraulic oil of upper hydraulic cylinder to enter inside upper capsule pump together makes capsule expand, the inlet valve of eccentric inlet valve assembly cuts out, delivery valve is opened, and the well liquid outside upper capsule pump enters oil pipe and gives rise to ground；
When down stroke, hydraulic oil in upper capsule pump flows back to upper cylinder body, capsule shrinks, the inlet valve of eccentric inlet valve assembly is opened, and delivery valve cuts out, and well liquid enters outside capsule, the hydraulic oil in lower plunger descending promotion lower cylinder body in mover drives lower cylinder body simultaneously flows into energy storage bag room compressed energy-storage bag, gas pressure in bag raises, and descending for mover and the motor descending one-half stroke cycle energy storage is got up, in case the expansion of energy storage bag releases energy when upstroke.
The invention has the beneficial effects as follows: one is by being provided with brand-new upper capsule pump, thus intercepted well liquid and linear electric motors and secondary the contacting of hydraulic cylinder internal motion, avoid kinematic pair to be corroded by the sand grains abrasion in well liquid and harmful substance, hydraulic oil provides lubrication and heat radiation for kinematic pair simultaneously, extends the service life of pump；Two are the increase in energy storage bag, promote hydraulic oil to flow back to the up acting release energy storage of lower Hydraulic Cylinder lower plunger by gas expansion in energy storage bag, thus can improve the work efficiency of motor；Three be have simple and reliable for structure, manufacture that handling ease, cost are low, adjust ginseng easily, energy transmitting and converting efficiency work efficiency high, motor is high and the advantage such as economize on electricity, electromechanical integration can be realized, it is particularly well-suited to platform well group and high sand output well and the oil well of other different situations, it is the significant innovation to tradition oil production method, has broad application prospects.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention；
In upper figure: plug 1, shell 2, energy storage bag 3, lower cylinder body 4, lower plunger 5, stator 6, mover 7, upper cylinder body 8, upper plug 9, eccentric inlet valve assembly 10, upper capsule pump 11, screen casing 12, well liquid 13, delivery valve 14, motor armored cable lead-out wire 15, control device 16, upper shell 17, adapter 18.
Detailed description of the invention
In conjunction with accompanying drawing 1, the invention will be further described:
nullThe present invention includes plug 1、Shell 2、Energy storage bag 3、Lower cylinder body 4、Lower plunger 5、Stator 6、Mover 7、Upper cylinder body 8、Upper plug 9、Eccentric inlet valve assembly 10、Upper capsule pump 11、Screen casing 12、Well liquid 13、Delivery valve 14、Motor armored cable lead-out wire 15、Control device 16、Upper shell 17、Adapter 18，Stator 6 is connected with the control device 16 being contained in ground by motor armored cable lead-out wire 15，Upper cylinder body 8 is connected with upper shell 17，The upper end of mover 7 is connected with the upper plug 9 in upper cylinder body 8，The lower end of described mover 7 is connected with the lower plunger 5 in lower cylinder body 4，The upper end of lower cylinder body 4 is connected with the stator 6 of motor，The lower end of lower cylinder body 4 is connected with shell 2，The lower end of shell 2 is provided with plug 1，Described shell 2 is internal is provided with energy storage bag 3 that is columnar compressible or that expand；Internal eccentric inlet valve assembly 10 and the upper capsule pump 11 of being provided with of described upper shell 17, the gap between eccentric inlet valve assembly 10 and upper shell 17 is hydraulic oil channel, and the upper end of hydraulic oil channel is internal with upper capsule pump 11 to be connected, and lower end connects with upper cylinder body 8；Described eccentric inlet valve assembly 10 is positioned at the inner chamber eccentric part of upper shell 17, the inside of eccentric inlet valve assembly 10 is provided with unidirectional inlet valve, it it is well liquid passage between described upper capsule pump 11 and upper shell 17, the oil pipe that the upper end of well liquid passage is connected with upper shell 17 upper end by delivery valve 14 connects, and the lower end of well liquid passage connects with the upper end outlet of inlet valve；Upper capsule pump 11 has intercepted contacting of well liquid and hydraulic oil, drives the plunger in cylinder body to pump by mover 7, promotes hydraulic oil to drive the capsule breathing of upper capsule pump that well liquid is given rise to ground.
Above-mentioned upper capsule pump 11 includes capsule shell and the internal screen casing 12 being provided with, and the bottom of capsule shell and the lower end of screen casing 12 upper end with adapter 18 respectively is connected, and screen casing 12 connects with hydraulic oil channel.
The lower end of above-mentioned adapter 18 is connected with eccentric inlet valve assembly 10, and eccentric side is provided with the outlet of well liquid.
It is respectively equipped with pressure release balance pipe at upper and lower cylinder body, at top dead center position, upper cylinder body, motor stator chamber and lower cylinder body is realized hydraulic oil by balance pipe and interconnect and poised state during the equipment that reaches initial servicing fluids force feed, not shown in figure.
Above-mentioned mover 7 is provided with multiple wall; the wall of every pair of N-S pole is that wear-resisting non-magnetic alloy processes; it is evenly distributed with, on all edges, the longitudinal direction passed through for hydraulic oil and crosses chute; it is the most staggered that the wall that each two is adjacent crosses chute; form sliding bearing formula with motor stator 6 and contact cooperation, thus N-S pole is played a protective role.So it is also ensured that the mover of motor the inner chamber of motor stator, lower hydraulic cylinder and on the inner chamber of hydraulic cylinder three freely pump, can ensure that upper and lower plunger freely pumps in upper and lower respective hydraulic cylinder simultaneously, the hydraulic oil that each moving component gap preserves is synchronized with the movement the most together, thus reduce the resistance of motion of whole system, saves energy, hydraulic oil provides lubrication and heat radiation to kinematic pair.
It addition, the using method of a kind of energy storage type linear electric motors capsule pump that the present invention mentions is:
To in oil well under the present invention is connected with oil pipe, and be connected with the control device 16 being contained in ground by motor armored cable lead-out wire 15, the mover 7 of linear electric motors upper, lower end is connected with the lower plunger 5 in the upper plug 9 in upper hydraulic cylinder and lower hydraulic cylinder respectively, the upper end of lower cylinder body 4 is connected with the stator 6 of motor, lower end is connected with energy storage bag 3, upper capsule pump 11, on, lower cylinder body, energy storage bag and shell 2 link together, the lower end plug 1 of shell 2 is closed, prevent well liquid from entering, all the pump housing is assembled into an entirety and debugs when dispatching from the factory, it is readily transported, after connecting cable at the scene and checking well, directly lift G.I.H the most permissible.
The present invention is when upstroke, under energy storage bag 3 expansion driven compressed, hydraulic oil promotes lower plunger 5 to move upward, mover 7 is upwards done work by motor simultaneously, promotion upper plug 9 promotes hydraulic oil entrance upper capsule pump 11 inside of upper hydraulic cylinder to make capsule expand together, the inlet valve of eccentric inlet valve assembly 10 cuts out, delivery valve 14 is opened, and the well liquid 13 outside upper capsule pump 11 enters oil pipe and gives rise to ground；
The present invention is when down stroke, hydraulic oil in upper capsule pump 11 flows back to upper cylinder body 8, capsule shrinks, the inlet valve of eccentric inlet valve assembly 10 is opened, and delivery valve 14 cuts out, and well liquid 13 enters outside capsule, the hydraulic oil in lower plunger 5 descending promotion lower cylinder body 4 in mover drives lower cylinder body 4 simultaneously flows into energy storage bag room compressed energy-storage bag 3, gas pressure in bag raises, and descending for mover and the motor descending one-half stroke cycle energy storage is got up, in case the expansion of energy storage bag releases energy when upstroke.
The invention have the advantage that one is by being provided with brand-new upper capsule pump, thus intercepted well liquid and linear electric motors and secondary the contacting of hydraulic cylinder internal motion, avoid kinematic pair to be corroded by the sand grains abrasion in well liquid and harmful substance, hydraulic oil provides lubrication and heat radiation for kinematic pair simultaneously, extends the service life of pump；Two are the increase in energy storage bag, promote hydraulic oil to flow back to the up acting release energy storage of lower Hydraulic Cylinder lower plunger by gas expansion in energy storage bag, thus can improve the work efficiency of motor；Three be have simple and reliable for structure, manufacture that handling ease, cost are low, adjust ginseng easily, energy transmitting and converting efficiency work efficiency high, motor is high and the advantage such as economize on electricity, electromechanical integration can be realized, it is particularly well-suited to platform well group and high sand output well and the oil well of other different situations, it is the significant innovation to tradition oil production method, has broad application prospects.
Claims (4)
- null1. an energy storage type linear electric motors capsule pump，Including shell (2)、Stator (6)、Mover (7)、Upper cylinder body (8)、Upper plug (9)、Upper capsule pump (11)、Delivery valve (14)、Motor armored cable lead-out wire (15)、Control device (16) and upper shell (17)，Stator (6) is connected with the control device (16) being contained in ground by motor armored cable lead-out wire (15)，Upper cylinder body (8) is connected with upper shell (17)，The upper end of mover (7) is connected with the upper plug (9) in upper cylinder body (8)，It is characterized in that: the lower end of described mover (7) is connected with the lower plunger (5) in lower cylinder body (4)，The upper end of lower cylinder body (4) is connected with the stator (6) of motor，The lower end of lower cylinder body (4) is connected with shell (2)，The lower end of shell (2) is provided with plug (1)，Described shell (2) is internal is provided with energy storage bag (3) that is columnar compressible or that expand；Described upper shell (17) is internal is provided with eccentric inlet valve assembly (10) and upper capsule pump (11), gap between eccentric inlet valve assembly (10) and upper shell (17) is hydraulic oil channel, the upper end of hydraulic oil channel is internal with upper capsule pump (11) to be connected, and lower end connects with upper cylinder body (8)；Described eccentric inlet valve assembly (10) is positioned at the inner chamber eccentric part of upper shell (17), the inside of eccentric inlet valve assembly (10) is provided with unidirectional inlet valve, it is well liquid passage between described upper capsule pump (11) and upper shell (17), the oil pipe that the upper end of well liquid passage is connected with upper shell (17) upper end by delivery valve (14) connects, and the lower end of well liquid passage connects with the upper end outlet of inlet valve；Upper capsule pump (11) has intercepted contacting of well liquid and hydraulic oil, drives the plunger in cylinder body to pump by mover (7), promotes hydraulic oil to drive the capsule breathing of upper capsule pump that well liquid is given rise to ground；It is respectively equipped with pressure release balance pipe at upper and lower cylinder body, at top dead center position, upper cylinder body, motor stator chamber and lower cylinder body is realized hydraulic oil by balance pipe and interconnect and poised state during the equipment that reaches initial servicing fluids force feed；Described mover (7) is provided with multiple wall, the wall of every pair of N-S pole is that wear-resisting non-magnetic alloy processes, it is evenly distributed with, on all edges, the longitudinal direction passed through for hydraulic oil and crosses chute, it is the most staggered that the wall that each two is adjacent crosses chute, forms sliding bearing formula with motor stator (6) and contacts cooperation.
- Energy storage type linear electric motors capsule pump the most according to claim 1, it is characterized in that: described upper capsule pump (11) includes capsule shell and the internal screen casing (12) being provided with, upper end with adapter (18) respectively, the lower end of the bottom of capsule shell and screen casing (12) is connected, and screen casing (12) connects with hydraulic oil channel.
- Energy storage type linear electric motors capsule pump the most according to claim 2, is characterized in that: the lower end of described adapter (18) is connected with eccentric inlet valve assembly (10), and eccentric side is provided with the outlet of well liquid.
- 4., according to the energy storage type linear electric motors capsule pump described in any one of claim 1-3, it is characterized in that the using method of energy storage type linear electric motors capsule pump is:When upstroke, under energy storage bag (3) expansion driven compressed, hydraulic oil promotes lower plunger (5) to move upward, mover (7) is upwards done work by motor simultaneously, promoting upper plug (9) to promote the hydraulic oil of upper cylinder body to enter upper capsule pump (11) inside together makes capsule expand, the inlet valve of eccentric inlet valve assembly (10) cuts out, delivery valve (14) is opened, and upper capsule pump (11) well liquid (13) outward enters oil pipe and gives rise to ground；When down stroke, hydraulic oil in upper capsule pump (11) flows back to upper cylinder body (8), capsule shrinks, the inlet valve of eccentric inlet valve assembly (10) is opened, delivery valve (14) cuts out, well liquid (13) enters outside capsule, the hydraulic oil in lower plunger (5) descending promotion lower cylinder body (4) in mover drives lower cylinder body (4) simultaneously flows into energy storage bag room compressed energy-storage bag (3), gas pressure in bag raises, descending for mover and the motor descending one-half stroke cycle energy storage is got up, in case the expansion of energy storage bag releases energy when upstroke.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410227221.2A CN104019019B (en) | 2014-05-27 | 2014-05-27 | Energy storage type linear electric motors capsule pump |
| CN201610910013.1A CN106523334B (en) | 2014-05-27 | 2014-05-27 | Oil field well mechanical oil recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410227221.2A CN104019019B (en) | 2014-05-27 | 2014-05-27 | Energy storage type linear electric motors capsule pump |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910013.1A Division CN106523334B (en) | 2014-05-27 | 2014-05-27 | Oil field well mechanical oil recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019019A CN104019019A (en) | 2014-09-03 |
| CN104019019B true CN104019019B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410227221.2A Expired - Fee Related CN104019019B (en) | 2014-05-27 | 2014-05-27 | Energy storage type linear electric motors capsule pump |
| CN201610910013.1A Active CN106523334B (en) | 2014-05-27 | 2014-05-27 | Oil field well mechanical oil recovery device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910013.1A Active CN106523334B (en) | 2014-05-27 | 2014-05-27 | Oil field well mechanical oil recovery device |
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| CN (2) | CN104019019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523334A (en) * | 2014-05-27 | 2017-03-22 | 张勇 | Oil field downhole mechanical oil extraction device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329244B (en) * | 2014-11-10 | 2017-06-13 | 中国石油天然气股份有限公司 | Capsule combination pump |
| CN106555570B (en) * | 2015-09-25 | 2022-12-27 | 中国石油化工股份有限公司 | Wellhead hydraulic lifting device |
| CN107191160B (en) * | 2017-05-28 | 2023-05-02 | 上海飞舟博源石油装备股份有限公司 | Double-plunger submersible diaphragm pump system and relay lifting method thereof |
| CN108590592B (en) * | 2018-07-02 | 2024-05-24 | 河北国创石油设备有限公司 | Underground linear motor oil pumping device |
| CN108612645A (en) * | 2018-07-02 | 2018-10-02 | 河北国创石油设备有限公司 | Down-hole linear motor pumping unit air assisted balancing device |
| CN117108475B (en) * | 2023-06-14 | 2024-07-02 | 湖北盛达动力科技有限公司 | Oil pump |
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|---|---|---|---|---|
| GB2392183A (en) * | 2002-08-22 | 2004-02-25 | Baker Hughes Inc | Well pump capsule |
| CN2725518Y (en) * | 2004-02-26 | 2005-09-14 | 刘春厚 | Rod less hydraulic oil pumping system |
| CN1844667A (en) * | 2006-04-26 | 2006-10-11 | 梁金国 | Down-hole linear motor and hydraulic cylinder driven capsule pump with balance weight for oil well |
| CN201288652Y (en) * | 2008-10-22 | 2009-08-12 | 单欣 | Cavity type barometric pressure induction flow pump |
| CN203892170U (en) * | 2014-05-27 | 2014-10-22 | 许一星 | Energy-storage type linear motor capsule pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111502A (en) * | 1977-03-02 | 1978-09-29 | Hitachi Chem Co Ltd | Solenoid type diapharagm capsule pump and its vibrator |
| CN1844669A (en) * | 2006-04-26 | 2006-10-11 | 许一星 | Down-hole linear motor and hydraulic cylinder driven capsule pump |
| US7736133B2 (en) * | 2006-05-23 | 2010-06-15 | Baker Hughes Incorporated | Capsule for two downhole pump modules |
| CN104019019B (en) * | 2014-05-27 | 2016-12-07 | 许一星 | Energy storage type linear electric motors capsule pump |
-
2014
- 2014-05-27 CN CN201410227221.2A patent/CN104019019B/en not_active Expired - Fee Related
- 2014-05-27 CN CN201610910013.1A patent/CN106523334B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2392183A (en) * | 2002-08-22 | 2004-02-25 | Baker Hughes Inc | Well pump capsule |
| CN2725518Y (en) * | 2004-02-26 | 2005-09-14 | 刘春厚 | Rod less hydraulic oil pumping system |
| CN1844667A (en) * | 2006-04-26 | 2006-10-11 | 梁金国 | Down-hole linear motor and hydraulic cylinder driven capsule pump with balance weight for oil well |
| CN201288652Y (en) * | 2008-10-22 | 2009-08-12 | 单欣 | Cavity type barometric pressure induction flow pump |
| CN203892170U (en) * | 2014-05-27 | 2014-10-22 | 许一星 | Energy-storage type linear motor capsule pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523334A (en) * | 2014-05-27 | 2017-03-22 | 张勇 | Oil field downhole mechanical oil extraction device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019019A (en) | 2014-09-03 |
| CN106523334A (en) | 2017-03-22 |
| CN106523334B (en) | 2018-09-25 |
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