CN106762614B - A kind of oil well oil recovery lifting double-acting vane pump - Google Patents
A kind of oil well oil recovery lifting double-acting vane pump Download PDFInfo
- Publication number
- CN106762614B CN106762614B CN201710032792.4A CN201710032792A CN106762614B CN 106762614 B CN106762614 B CN 106762614B CN 201710032792 A CN201710032792 A CN 201710032792A CN 106762614 B CN106762614 B CN 106762614B
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- oil
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- component
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to oil well oil recovery lifting equipment, specifically a kind of oil well, which recovers the oil, lifts double-acting vane pump.Including main shaft, the pump housing, overhead cam, rotor, stator, lower cam and blade, wherein main shaft is mounted on by upper bearing (metal) component and lower bearing component in the pump housing, stator is fixedly connected with the pump housing, rotor is sheathed on main shaft, and annular space is formed between stator, one diameter both sides of annular space are equipped with low pressure oil suction area and high pressure oil extraction area, the excircle of rotor is equipped with multiple blade grooves, a blade is inserted in each blade groove, the bottom of each blade groove is connected to the oil outlet being set on upper bearing (metal) component, overhead cam and lower cam are sheathed on main shaft, and it is fixedly connected respectively with upper bearing (metal) component and lower bearing component；It is abutted with the inner wall of stator under the promotion that each blade passes through overhead cam and lower cam or the high pressure oil for entering blade trench bottom.High temperature oil recovery of the present invention, which does not carry pump, to save well workover time and expense with continuous gas injection, improve oil recovery efficiency.
Description
Technical field
The present invention relates to oil well oil recovery lifting equipment, specifically a kind of oil well, which recovers the oil, lifts double acting leaf
Piece pumps.
Background technology
Currently, oil recovery lifting equipment still carries over the reciprocating oil pump used the end of the seventies both at home and abroad, accounts for lifting and recover the oil
The 80% of equipment total amount, possesses more than 100 years history, the huge pumping unit in bottom surface, accounts for that floor space is big, and reciprocating oil pump is by structure system
About, alternating load is born, mechanical loss is big, and efficiency is low, handles up well, especially injection thermal recovery gas for viscous crude, high solidifying oily thermal recovery
Lock is serious, cisco unity malfunction.High-temperature oil well sucker rod is heated, and nature elongation is big, and the efficiency of pump is very low.Screw pump has been applied
More than 40 years, account for oil production equipment total amount 10% once, can't handle up in viscous crude, high solidifying oily heat uses in well so far, it is believed that spiral shell
Bar pump stator is rubber material, non-refractory, can only 85 degree once application effect it is best, use scope is very narrow, for containing sand
Big oil well screw rod serious wear, short life.Centrifugation oil-immersed pump is mainly applied on huge discharge thin oil well, and viscous crude cannot be lifted,
One-time investment is big, is not easy to be widely applied.
Invention content
In view of the above-mentioned problems, recovering the oil the purpose of the present invention is to provide a kind of oil well lifts double-acting vane pump.
To achieve the goals above, the present invention uses following technical scheme：
A kind of oil well recovers the oil lifting double-acting vane pump, including main shaft, the pump housing, overhead cam, rotor, stator, under it is convex
Wheel and blade, wherein main shaft are mounted on by upper bearing (metal) component and lower bearing component in the pump housing, the stator and the pump housing
Inner wall is fixedly connected, and the rotor is sheathed on the main shaft and forms annular space between the stator, and the annular space is always
Diameter both sides are equipped with low pressure oil suction area and high pressure oil extraction area, and the excircle of the rotor is equipped with multiple blade grooves, each blade groove
It is inside inserted with a blade, the bottom of each blade groove is connected to the oil outlet being set on the upper bearing (metal) component, described convex
Wheel and lower cam are sheathed on the main shaft and are fixedly connected respectively with the upper bearing (metal) component and the lower bearing component；Respectively
The blade pass through the overhead cam and lower cam and enter the blade trench bottom high pressure oil promotion under with the stator
Inner wall abut.
The blade groove is radially opened on the excircle of the rotor, and the blade can be along diameter in the blade groove
To movement.
The upper bearing (metal) component includes upper sliding bearing and top chock, and the inner wall of the top chock and the pump housing connects
It connects, the upper sliding bearing is sleeved on the main shaft and is connect with the top chock, and the top chock is equipped with out liquid
Mouthful, the overhead cam is fixedly connected with the top chock.
The top chock is equipped with the high pressure fuel feed hole being connected to the liquid outlet and the blade trench bottom.
The both ends of the rotor are equipped with Inner seam allowances, the Inner seam allowances gap of the overhead cam and lower cam and the two ends of rotor
Cooperation.
The anti-attrition component being located above the upper sliding bearing is equipped between the top chock and the main shaft.
The anti-attrition component includes anti-attrition gland, upper anti-wear gasket and lower anti-wear gasket, wherein upper anti-wear gasket and lower anti-attrition cushion cover
On the main shaft and the both sides of the shaft shoulder that the main shaft is equipped with are located at, the anti-attrition gland is set on described
It the top of anti-wear gasket and is fixedly connected with the top chock.
The excircle of the rotor be equipped with multiple sediment outflow slots, each sediment outflow slot be located at the two neighboring blade groove it
Between.
The lower bearing component includes step and properties of journal bearing lubricated, and the inner wall of the step and the pump housing supports
It connects, the properties of journal bearing lubricated is sleeved on the main shaft and is connect with the step, and the step is equipped with feed liquor
Mouthful, the lower cam is connect with the step.
Two low pressure oil suction areas of one diameter both sides of the annular space are symmetrical arranged, two high pressure oil extraction areas pair
Claim setting.
Advantages of the present invention and advantageous effect are：
1. the present invention recovers the oil, lifting vane pump is rotated by well head driving spindle recovers the oil, and the work for overcoming rod string is shunk
The efficiency of caused oil well pump is low, and invention has the advantages of high efficiency, than rod-pumped well economize on electricity about 40-50%.
2. the present invention recovers the oil, lifting vane pump is manufactured using all-metal material, can lift thin oil, viscous crude, high solidifying oil etc.,
Use scope is wide, and maximum temperature is up to 350 degree.
3. high temperature oil recovery of the present invention, which does not carry pump, to save well workover time and expense with continuous gas injection, oil recovery efficiency is improved, is subtracted
Few labor intensity.
The lifting vane pump 4. the present invention recovers the oil, blade move back and forth by hydraulic action and realize work, contain to high temperature oil recovery
Gas and oil well not gas lock.
The lifting vane pump 5. the present invention recovers the oil, blade move back and forth by hydraulic action and realize work, to containing sand oil well not
Sensitivity, pump is lower equipped with rotation sand device, and pump abrasion is small.
The lifting vane pump 6. the present invention recovers the oil, rotating motion part are clearance fits, and smooth running, the efficiency of pump is high, is past
Multiple oil well pump economize on electricity 40%-50%.
7, the present invention recover the oil lifting vane pump, be double-acting pump, pump rotation one circle oil suction twice, oil extraction twice, with nonoculture
It is pumped and is compared with pump blade, double-acting pump does not have radial load, reduces sliding bearing abrasion, and pump service life is long.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the structural schematic diagram of rotor in the present invention；
Fig. 4 is the B-B sectional views of Fig. 3.
Wherein：1 is main shaft, and 2 be trip bolt, and 3 be the pump housing, and 4 be trip bolt, and 5 be anti-attrition gland, and 6 be fastening nut,
7 be upper anti-wear gasket, and 8 be lower anti-wear gasket, and 9 be trip bolt, and 10 be upper sliding bearing, and 11 be top chock, and 12 be high pressure oil inlet
Hole, 13 be overhead cam, and 14 be flat key, and 15 be rotor, and 16 be stator, and 17 be lower cam, and 18 be step, and 19 be downslide moving axis
It holds, 20 be trip bolt, and 21 be hole baffle ring, and 22 be intermediate connecting sleeve, and 23 be fixed flat key, and 24 be blade, and 25 is fixed for cam
Position pin, 26 be liquid outlet, and 27 be inlet, and 28 be sediment outflow slot, and 29 be blade groove, and 30 be Inner seam allowances, and N is low pressure oil suction area, and M is
High pressure oil extraction area.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
As shown in Figs 1-4, a kind of oil well provided by the invention, which recovers the oil, lifts double-acting vane pump, including main shaft 1, pump
Body 3, overhead cam 13, rotor 15, stator 16, lower cam 17 and blade 24, wherein main shaft 1 pass through upper bearing (metal) component and bearing portions
Part be mounted on the pump housing 3 in, stator 16 is fixedly connected with the inner wall of the pump housing 3, rotor 15 be sheathed on main shaft 1 and with stator 16 it
Between form annular space, a diameter both sides of annular space are equipped with low pressure oil suction area N and high pressure oil extraction area M, are set on the excircle of rotor 15
There are multiple blade grooves 29, be inserted with a blade 24 in each blade groove 29, the bottom of each blade groove 29 and is set to upper bearing portion
Oil outlet 26 on part is connected to.Overhead cam 13 and lower cam 17 be sheathed on main shaft 1 and respectively with upper bearing (metal) component and lower bearing
Component is fixedly connected；Under promotion of each blade 24 by overhead cam 13 and lower cam 17 and the high pressure oil for entering 29 bottom of blade groove
It is abutted with the inner wall of stator 16.
Blade groove 29 is radially opened on the excircle of rotor 15, and blade 24 can move radially in blade groove 29.
Further, the excircle of rotor 15 is equipped with multiple sediment outflow slots 28, and each sediment outflow slot 28 is located at two neighboring blade groove 29
Between, as shown in Figure 3.
The upper bearing (metal) component includes upper sliding bearing 10 and top chock 11, and top chock 11 and the inner wall of the pump housing 3 connect
It connects, upper sliding bearing 10 is sleeved on main shaft 1 and is connect with top chock 11, and two are arranged on top chock 11 and goes out liquid
Mouth 26, overhead cam 13 is fixedly connected with top chock 11.
Top chock 11 is equipped with the high pressure fuel feed hole 12 being connected to liquid outlet 26 and 29 bottom of blade groove.The two of rotor 15
End is equipped with Inner seam allowances 30,30 clearance fit of Inner seam allowances of overhead cam 13 and lower cam 17 and 15 both ends of rotor.
The anti-attrition component for being located at 10 top of upper sliding bearing is equipped between top chock 11 and main shaft 1.The anti-attrition component
Including anti-attrition gland 5, upper anti-wear gasket 7 and lower anti-wear gasket 8, wherein upper anti-wear gasket 7 and lower anti-wear gasket 8 are sheathed on main shaft 1 and divide
Not Wei Yu the both sides of the shaft shoulder that are equipped with of main shaft 1, anti-attrition gland 5 is set to the top of anti-wear gasket 7 and solid with top chock 11
Fixed connection.
The lower bearing component includes step 18 and properties of journal bearing lubricated 19, and step 18 and the inner wall of the pump housing 3 support
It connects, properties of journal bearing lubricated 19 is sleeved on main shaft 1 and is connect with step 18, and two feed liquors are arranged on step 18
Mouth 27, lower cam 17 is connect with step 18.
Two low pressure oil suction area N of one diameter both sides of annular space are symmetrical arranged, and two high pressure oil extraction area M are symmetrical arranged.Two
A inlet 27 is corresponding with two low pressure oil suction area N respectively, and two liquid outlets 26 are opposite with two high pressure oil extraction area M respectively
It answers.
The present invention operation principle be：
Double acting oil recovery vane pump provided by the invention, the rotation of main shaft 1 drive rotor 15 to rotate clockwise by flat key 14,
For blade 24 under the action of by the hydraulic pressure of 15 both ends overhead cam 13 of rotor, 24 bottom of lower cam 17 and blade, blade 24 is always
It is tightly attached on the inner surface of stator 16 and slides, it is low pressure oil suction area N that rotor 15, which goes to 90 degree from 0 degree, and liquid is from step 18
On inlet 27 enter in pump chamber.It is high pressure oil extraction area M that rotor 15, which goes to 180 degree from 90 degree, and liquid is from top chock 11
Liquid outlet 26 enter oil pipe in.It is another low pressure oil suction area N that rotor 15 goes to 270 degree from 180 degree, and liquid is from step 18
On another inlet 27 enter in pump chamber.It is another high pressure oil extraction area M that rotor 15, which goes to 360 degree from 270 degree, and liquid is from upper axis
Another liquid outlet 26 in bearing 11 enters in oil pipe.Rotor every revolution, forms oil suction twice, and oil extraction twice pumps continuous fortune
Turn, the continuous oil suctions of low pressure oil suction area N, the continuous oil extractions of high pressure oil extraction area M, liquid in oil well is lifted from the space of oil pipe and sucker rod
It is raised in ground metering station.
The double-acting pump of the present invention is according to oil well depth, and lifting liquid height is different, and generated pressure is different, vane pump
It can be used with series multistage, improve lift-off pressures, reduce pump abrasion, extend pump service life.
When vane pump plural serial stage combines, the outer casing screw connection of every grade of pump is radially fixed, and spline housing is used between each axis
Connection.
Oil recovery provided by the invention lifts double-acting vane pump, is all-metal material manufacture, well head driving spindle rotation fortune
It is dynamic, it is applicable in thin oil, viscous crude, high solidifying oil and high temperature and handles up well, maximum temperature is up to 350 degree.Blade can be in pump work intracavitary diameter
To reciprocating motion, automatic to compensate, service life is long, and in high temperature, containing gas well, gas lock, reasonable design gap width, smooth running do not pump
It is efficient, it is domestic and international optimal lifting oil production equipment at present than reciprocating oil pump economize on electricity 40%-50%.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (8)
- The lifting double-acting vane pump 1. a kind of oil well recovers the oil, which is characterized in that including main shaft (1), the pump housing (3), overhead cam (13), rotor (15), stator (16), lower cam (17) and blade (24), wherein main shaft (1) pass through upper bearing (metal) component and lower bearing Component is mounted in the pump housing (3), and the stator (16) is fixedly connected with the inner wall of the pump housing (3), and the rotor (15) is arranged In forming annular space on the main shaft (1) and between the stator (16), a diameter both sides of the annular space are equipped with low pressure suction The excircle in oily area (N) and high pressure oil extraction area (M), the rotor (15) is equipped with multiple blade grooves (29), each blade groove (29) It is inside inserted with a blade (24), the bottom of each blade groove (29) and the oil outlet (26) being set on the upper bearing (metal) component connect It is logical, the overhead cam (13) and lower cam (17) be sheathed on the main shaft (1) and respectively with the upper bearing (metal) component and described Lower bearing component is fixedly connected；Each blade (24) is by the overhead cam (13) and lower cam (17) and enters the blade It is abutted with the inner wall of the stator (16) under the promotion of the high pressure oil of slot (29) bottom；The upper bearing (metal) component includes upper sliding bearing (10) and top chock (11), the top chock (11) and the pump housing (3) inner wall connection, the upper sliding bearing (10) are sleeved on the main shaft (1) and are connect with the top chock (11), The top chock (11) is equipped with liquid outlet (26), and the overhead cam (13) is fixedly connected with the top chock (11)；The lower bearing component includes step (18) and properties of journal bearing lubricated (19), the step (18) and the pump housing (3) inner wall abuts, and the properties of journal bearing lubricated (19) is sleeved on the main shaft (1) and is connect with the step (18), The step (18) is equipped with inlet (27), and the lower cam (17) connect with the step (18).
- The lifting double-acting vane pump 2. oil well according to claim 1 recovers the oil, which is characterized in that the blade groove (29) it is radially opened on the excircle of the rotor (15), the blade (24) can be radially in the blade groove (29) It is mobile.
- The lifting double-acting vane pump 3. oil well according to claim 1 recovers the oil, which is characterized in that the top chock (11) it is equipped with the high pressure fuel feed hole (12) being connected to the liquid outlet (26) and the blade groove (29) bottom.
- The lifting double-acting vane pump 4. oil well according to claim 3 recovers the oil, which is characterized in that the rotor (15) Both ends be equipped with Inner seam allowances (30), the Inner seam allowances (30) of the overhead cam (13) and lower cam (17) and the rotor (15) both ends Clearance fit.
- The lifting double-acting vane pump 5. oil well according to claim 1 recovers the oil, which is characterized in that the top chock (11) the anti-attrition component being located above the upper sliding bearing (10) is equipped between the main shaft (1).
- The lifting double-acting vane pump 6. oil well according to claim 5 recovers the oil, which is characterized in that the anti-attrition component Including anti-attrition gland (5), upper anti-wear gasket (7) and lower anti-wear gasket (8), wherein upper anti-wear gasket (7) and lower anti-wear gasket (8) are sheathed on institute The both sides for the shaft shoulder that the main shaft (1) is equipped with are stated on main shaft (1) and are located at, the anti-attrition gland (5) is set to described It the top of upper anti-wear gasket (7) and is fixedly connected with the top chock (11).
- The lifting double-acting vane pump 7. oil well according to claim 1 recovers the oil, which is characterized in that the rotor (15) Excircle be equipped with multiple sediment outflow slots (28), each sediment outflow slot (28) is located between the two neighboring blade groove (29).
- The lifting double-acting vane pump 8. oil well according to claim 1 recovers the oil, which is characterized in that the one of the annular space Two low pressure oil suction areas (N) of diameter both sides are symmetrical arranged, and two high pressure oil extraction areas (M) are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032792.4A CN106762614B (en) | 2017-01-16 | 2017-01-16 | A kind of oil well oil recovery lifting double-acting vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032792.4A CN106762614B (en) | 2017-01-16 | 2017-01-16 | A kind of oil well oil recovery lifting double-acting vane pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762614A CN106762614A (en) | 2017-05-31 |
| CN106762614B true CN106762614B (en) | 2018-11-13 |
Family
ID=58947180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710032792.4A Active CN106762614B (en) | 2017-01-16 | 2017-01-16 | A kind of oil well oil recovery lifting double-acting vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762614B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720306A (en) * | 2020-06-30 | 2020-09-29 | 丹东纳泰石油机械有限公司 | Double-acting vane pump |
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| CN201301794Y (en) * | 2008-11-06 | 2009-09-02 | 丹东一正密封有限公司 | Underground vane pump oil production plant |
| CN102072149A (en) * | 2009-11-25 | 2011-05-25 | 日立汽车系统株式会社 | Variable displacement pump |
| CN102536807A (en) * | 2012-03-02 | 2012-07-04 | 中国石油天然气股份有限公司 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
| CN202468307U (en) * | 2012-03-02 | 2012-10-03 | 中国石油天然气股份有限公司 | Sliding vane pump |
| CN103147977A (en) * | 2013-02-05 | 2013-06-12 | 中国石油天然气股份有限公司 | Torsion spring vane pump for oil well lifting |
| CN105156077A (en) * | 2015-10-10 | 2015-12-16 | 陈庆先 | Differential step linear underground intelligent oil production device |
| CN206477989U (en) * | 2017-01-16 | 2017-09-08 | 丹东纳泰石油机械有限公司 | Oil well, which recovers the oil, lifts double-acting vane pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6289943B2 (en) * | 2014-03-10 | 2018-03-07 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
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2017
- 2017-01-16 CN CN201710032792.4A patent/CN106762614B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045031U (en) * | 1989-03-15 | 1989-09-27 | 浙江省仙居液压件厂 | Dual-purpose variable paddle pump |
| CN2589693Y (en) * | 2002-03-04 | 2003-12-03 | 杨林荣 | High-performance reciprocating rotor thick oil pump |
| CN201301794Y (en) * | 2008-11-06 | 2009-09-02 | 丹东一正密封有限公司 | Underground vane pump oil production plant |
| CN102072149A (en) * | 2009-11-25 | 2011-05-25 | 日立汽车系统株式会社 | Variable displacement pump |
| CN102536807A (en) * | 2012-03-02 | 2012-07-04 | 中国石油天然气股份有限公司 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
| CN202468307U (en) * | 2012-03-02 | 2012-10-03 | 中国石油天然气股份有限公司 | Sliding vane pump |
| CN103147977A (en) * | 2013-02-05 | 2013-06-12 | 中国石油天然气股份有限公司 | Torsion spring vane pump for oil well lifting |
| CN105156077A (en) * | 2015-10-10 | 2015-12-16 | 陈庆先 | Differential step linear underground intelligent oil production device |
| CN206477989U (en) * | 2017-01-16 | 2017-09-08 | 丹东纳泰石油机械有限公司 | Oil well, which recovers the oil, lifts double-acting vane pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762614A (en) | 2017-05-31 |
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