CN114542439B - Double-acting fixed valve oil pump for super heavy oil horizontal well - Google Patents
Double-acting fixed valve oil pump for super heavy oil horizontal well Download PDFInfo
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- CN114542439B CN114542439B CN202210155839.7A CN202210155839A CN114542439B CN 114542439 B CN114542439 B CN 114542439B CN 202210155839 A CN202210155839 A CN 202210155839A CN 114542439 B CN114542439 B CN 114542439B
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- plunger
- pump barrel
- oil
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- 239000003921 oil Substances 0.000 title claims abstract description 58
- 239000000295 fuel oil Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000003129 oil well Substances 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 5
- 238000007790 scraping Methods 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
-
- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/126—Ball valves
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/422—Valve seats attachable by a threaded connection to the housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a double-acting fixed valve oil pump for a super heavy oil horizontal well, which comprises an oil pump main body, wherein the oil pump main body comprises a pump barrel, a pull rod is arranged in the pump barrel, the left end of the pump barrel is in threaded connection with a pump barrel lock sleeve, the outer side of the pump barrel lock sleeve is fixedly sleeved with a pump seat, the outer side of the pump seat is in threaded connection with a coupling, the left end of the pump barrel lock sleeve is in threaded connection with a pump barrel upper joint positioned in the coupling, and the left end of the pull rod sequentially penetrates through the pump barrel lock sleeve and the pump barrel upper joint and is in threaded connection with the pull rod upper joint. In addition, the novel fixed valve formed by the ball seat II, the second steel ball, the valve sleeve spring and the suction valve sleeve is matched with the original fixed valve function, has the effect of the double-acting fixed valve, achieves the effect of forming two seals, can greatly improve the sealing capacity of the oil pump, reduces the leakage of the oil pump, and increases the pumping efficiency of the oil pump, thereby improving the oil yield of the oil well, obtaining better economic benefit and social benefit, and meeting the use requirement.
Description
Technical Field
The invention relates to the technical field of oil pumps, in particular to a double-acting fixed valve oil pump for a super heavy oil horizontal well.
Background
The stratum for storing the thick oil has the following characteristics: 1. the oil well is shallow in burial, 2, low in oil layer pressure, low in temperature, 3, high in crude oil viscosity, high in density, 4, high in colloid and asphaltene content in crude oil and the like, on the basis of the characteristics, the thick oil exploitation difficulty is high, technologies such as thermal exploitation and the like are needed to be adopted, oil extraction operation can be carried out after well stewing, an oil pump is needed in the oil extraction process, the oil pump can integrally descend into an oil pipe along with an oil pumping rod, when the oil injection is needed after primary oil extraction is completed, the steam injection operation can be directly carried out under the condition that a pipe column is not lifted, and the oil pipe is not lifted during pump detection operation, so that the well occupation time is reduced;
the oil pump generally comprises a fixed valve, a traveling valve, a pump barrel, a plunger, a pump barrel upper connector, a pump barrel lock sleeve, a plunger upper connector, a plunger lower connector, a pull rod and the like, wherein the number of the fixed valves is one, when the oil pump works, the oil pump drives the plunger to reciprocate up and down through a sucker rod, the fixed valve and the traveling valve are continuously opened and closed, the actions of sucking oil gas and discharging oil gas are completed, the liquid level in an oil pipe is continuously raised until the ground is pumped out, and the oil is discharged into an oil pipeline.
The oil pump is used in severe environment for a long time, a series of problems such as corrosion are easy to occur, corrosion expression forms include acid corrosion, electrochemical corrosion, pitting corrosion, mechanical abrasion or abrasion and the like, various corrosion of the forms can lead to the sealing between a valve ball of a fixed valve and a valve seat of the fixed valve to be not tight, so that the leakage amount of the oil pump is increased, the pumping efficiency is reduced, the oil yield of an oil well is reduced, and the use requirement cannot be met, therefore, the double-acting fixed valve oil pump for the super-thick oil horizontal well is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides a double-acting fixed valve oil well pump for a super heavy oil horizontal well.
The invention provides a double-acting fixed valve oil pump for an ultra-thick oil horizontal well, which comprises an oil pump main body, wherein the oil pump main body comprises a pump barrel, a pull rod is arranged in the pump barrel, the left end of the pump barrel is in threaded connection with a pump barrel lock sleeve, the outer side of the pump barrel lock sleeve is fixedly sleeved with a pump seat, the outer side of the pump seat is in threaded connection with a coupling, the left end of the pump barrel lock sleeve is in threaded connection with a pump barrel upper joint positioned in the coupling, the left end of the pull rod sequentially penetrates through the pump barrel lock sleeve and the pump barrel upper joint and is in threaded connection with a pull rod upper joint, the right end of the pull rod is in threaded connection with a pull rod lower joint positioned in the pump barrel, the right end of the pull rod lower joint is in threaded connection with a plunger upper joint, the right end of the plunger upper joint is in threaded connection with a ball seat I and a plunger coupling, the left side of the plunger coupling is in movable contact with the right side of the ball seat I, the left end of the ball seat is in movable sleeve is provided with a first steel ball, a plunger upper spring is arranged between the left side of the first steel ball and the left inner wall of the plunger upper joint, a plunger is connected with the outer side of the right end of the plunger coupling in a threaded manner, a plunger lower joint is connected with the inner side of the right end of the plunger in a threaded manner, a bushing clamped in the plunger is movably contacted with the left end of the plunger lower joint, a sand scraping ring is arranged on the outer side of the plunger lower joint, a sand scraping screw is arranged on the outer side of the sand scraping ring, a ball seat III is arranged on the inner side of the left end of the plunger lower joint, a third steel ball is movably sleeved on the inner side of the ball seat III, a plunger lower spring is arranged between the outer side of the third steel ball and the left inner wall of the bushing, a retainer ring movably contacted with the right side of the sand scraping ring is fixedly sleeved on the outer side of the plunger lower joint, a valve sleeve spring seat is arranged on the right side of the pump cylinder, a valve sleeve is sleeved on the outer side of the right end of the valve sleeve spring seat in a threaded manner, a sieve tube upper joint is connected with the right end of the valve sleeve in a threaded manner, the left end of the upper joint of the sieve tube is movably contacted with a ball seat IV clamped in the valve sleeve, a fourth steel ball is movably sleeved in the ball seat IV, a valve inner spring is arranged between the outer side of the fourth steel ball and the right end of the valve sleeve spring seat, the inner side of the right end of the upper joint of the sieve tube is connected with the sieve tube through threads, and the inner side of the right end of the sieve tube is connected with a sieve tube plug through threads;
the left end outside threaded connection of valve pocket spring holder has the suction valve pocket, and four intercommunicating pores have been seted up to suction valve pocket's left end in annular equidistant, and suction valve pocket threaded connection is inboard at the right-hand member of pump cylinder, and the left end movable contact of valve pocket spring holder has the ball seat second of clamping in suction valve pocket, and the movable cover is equipped with the second steel ball in the ball seat second, is provided with the valve pocket spring between the outside of second steel ball and the left end inner wall of suction valve pocket.
Preferably, a threaded hole communicated with the inner wall of the pump cylinder is formed in the left side of the top of the upper joint of the pump cylinder, a set screw is sleeved in the threaded hole in a threaded mode, and the set screw is located above the pull rod and matched with the pull rod.
Preferably, a locking piece is arranged on the inner wall of the bottom of the pump cylinder lock sleeve, an annular groove clamped with the locking piece is arranged on the outer side of the right end of the upper joint of the pump cylinder, and a locking piece spring connected with the inner wall of the pump cylinder lock sleeve is arranged on the locking piece.
Preferably, the first steel ball is a steel ball with a diameter of 35.
Preferably, the second steel ball is a steel ball with a diameter of 43.
Preferably, a plurality of sieve holes are formed in the inner wall of the sieve tube.
Preferably, a first external thread is arranged on the outer side of the left end of the valve sleeve spring seat, a first internal thread is arranged on the inner side of the right end of the suction valve sleeve, the first internal thread is meshed with the first external thread, a second internal thread is arranged on the inner side of the right end of the pump cylinder, and a second external thread meshed with the second internal thread is arranged on the outer side of the left end of the suction valve sleeve.
Preferably, the right end of the pull rod is fixedly connected with a threaded column, and the left end of the lower joint of the pull rod is provided with a threaded groove in threaded connection with the threaded column.
Preferably, the outer side of the pull rod lower joint is not contacted with the inner wall of the pump cylinder, the outer side of the plunger coupling is contacted with the inner wall of the pump cylinder, and the outer side of the plunger is contacted with the inner wall of the pump cylinder.
Compared with the prior art, the invention has the beneficial effects that:
in addition, the novel fixed valve formed by the ball seat II, the second steel ball, the valve sleeve spring and the suction valve sleeve is matched with the original fixed valve function, has the effect of the double-acting fixed valve, achieves the effect of forming two seals, can greatly improve the sealing capacity of the oil pump, reduces the leakage of the oil pump, and increases the pumping efficiency of the oil pump, thereby improving the oil yield of the oil well, obtaining better economic benefit and social benefit, and meeting the use requirement.
Drawings
FIG. 1 is a schematic diagram of a cross-sectional structure of a double-acting fixed valve oil pump for a super heavy oil horizontal well;
FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;
FIG. 3 is an enlarged schematic view of the portion B in FIG. 1;
FIG. 4 is an enlarged schematic view of the portion C in FIG. 1;
FIG. 5 is a schematic diagram of a cross-sectional structure of a ball seat II of a double-acting fixed valve oil well pump for a super heavy oil horizontal well;
fig. 6 is a schematic structural diagram of a second steel ball of the double-acting fixed valve oil well pump for the super heavy oil horizontal well;
FIG. 7 is a schematic diagram of the sectional structure of the suction valve sleeve of the double-acting fixed valve oil pump for the super heavy oil horizontal well;
fig. 8 is a schematic diagram of a left-hand structure of a suction valve sleeve of a double-acting fixed valve oil pump for a super heavy oil horizontal well.
In the figure: 1. a pull rod; 2. an upper joint of the pump cylinder; 3. coupling; 4. a pump base; 5. pump cylinder lock sleeve; 6. a pump cylinder; 7. a pull rod lower joint; 8. a plunger upper joint; 9. a first steel ball; 10. ball seat I; 11. a plunger coupling; 12. a plunger; 13. a bushing; 14. a plunger lower joint; 15. a sand scraping ring; 16. scraping sand and spiral; 17. a retainer ring; 18. a valve sleeve spring seat; 19. a valve sleeve; 20. a screen pipe plug; 21. a screen pipe; 22. an upper joint of the sieve tube; 23. a ball seat II; 24. a second steel ball; 25. a valve sleeve spring; 26. a suction valve sleeve; 27. a ball seat III; 28. a plunger lower spring; 29. a spring is arranged on the plunger; 30. a locking piece; 31. a lock block spring; 32. a set screw; 33. and a pull rod upper joint.
Detailed Description
The invention is further illustrated below in connection with specific embodiments.
Examples
Referring to fig. 1-8, this embodiment provides a double-acting fixed valve oil pump for super heavy oil horizontal wells, comprising an oil pump main body, the oil pump main body comprises a pump barrel 6, a pull rod 1 is arranged in the pump barrel 6, a pump barrel lock sleeve 5 is connected with the left end of the pump barrel 6 in a threaded manner, wherein a first external screw thread is arranged on the outer side of the right end of the pump barrel lock sleeve 5, a first internal screw thread is arranged on the inner side of the left end of the pump barrel 6, the pump barrel lock sleeve 5 is in threaded connection with the pump barrel 6 through the cooperation of the first external screw thread and the first internal screw thread, a pump seat 4 is fixedly sleeved on the outer side of the pump barrel lock sleeve 5, a coupling 3 is arranged on the outer side of the pump seat 4 in a threaded manner, a second external screw thread is arranged on the inner side of the coupling 3, a pump barrel upper joint 2 positioned in the coupling 3 is connected with the left end of the pump barrel lock sleeve 5 in a threaded manner through the second internal screw thread and the second external screw thread, the left end of the pull rod 1 sequentially penetrates through the pump cylinder lock sleeve 5 and the pump cylinder upper joint 2 and is in threaded connection with a pull rod upper joint 33, the right end of the pull rod 1 is in threaded connection with a pull rod lower joint 7 positioned in the pump cylinder 6, the right end of the pull rod lower joint 7 is in threaded connection with a plunger upper joint 8, the right end inner side of the plunger upper joint 8 is in threaded connection with a ball seat I10 and a plunger coupling 11, the left side of the plunger coupling 11 is in movable contact with the right side of the ball seat I10, the left end inner side of the ball seat I10 is movably sleeved with a first steel ball 9, wherein the diameter of the first steel ball 9 is larger than the inner diameter of the ball seat I10, a plunger upper spring 29 is arranged between the left side of the first steel ball 9 and the left side inner wall of the plunger upper joint 8, the right end outer side of the plunger coupling 11 is in threaded connection with a plunger 12, the right end inner side of the plunger coupling 12 is in threaded connection with a plunger lower joint 14, the left end of the plunger lower joint 14 is movably contacted with a bushing 13 clamped in the plunger 12, the outer side of the plunger lower joint 14 is provided with a sand scraping ring 15, the outer side of the sand scraping ring 15 is provided with a sand scraping screw 16, the left end inner side of the plunger lower joint 14 is provided with a ball seat III 27, the inner side of the ball seat III 27 is movably sleeved with a third steel ball, the diameter of the third steel ball is larger than the inner diameter of the ball seat III 27, a plunger lower spring 28 is arranged between the outer side of the third steel ball and the left inner wall of the bushing 13, the outer side of the plunger lower joint 14 is fixedly sleeved with a retainer ring 17 movably contacted with the right side of the sand scraping ring 15, the right side of the pump cylinder 6 is provided with a valve sleeve spring seat 18, the outer side of the right end of the valve sleeve spring seat 18 is sleeved with a valve sleeve 19, the inner side of the right end of the valve sleeve upper joint 22 is in threaded connection with a screen pipe upper joint 22, the left end of the screen pipe upper joint 22 is movably contacted with a ball seat IV clamped in the valve sleeve 19, the inner side of the ball seat IV is movably sleeved with a fourth steel ball, the diameter of the fourth steel ball is larger than the inner diameter of the ball seat IV is convenient for the fourth steel ball to support, the inner side of the fourth steel ball is provided with a spring seat, the inner side of the fourth steel ball is provided with an inner side of the valve seat 18, the inner side of the screen seat 21 is connected with a threaded seat 21, and the inner side of the screen pipe is connected with a threaded end 21;
the left end outside threaded connection of valve pocket spring holder 18 has suction valve pocket 26, suction valve pocket 26's left end is annular equidistant four intercommunications that have been seted up, suction valve pocket 26 threaded connection is inboard in the right-hand member of pump cylinder 6, the left end movable contact of valve pocket spring holder 18 has the ball seat two 23 of clamping in suction valve pocket 26, the movable cover in ball seat two 23 has second steel ball 24, wherein the diameter of second steel ball 24 is greater than the internal diameter of ball seat two 23, play the effect to second steel ball 24 support, be provided with valve pocket spring 25 between the outside of second steel ball 24 and the left end inner wall of suction valve pocket 26, this embodiment is in addition through ball seat two 23, second steel ball 24, valve pocket spring 25 and the brand-new fixed valve that suction valve pocket 26 formed, cooperate original fixed valve function, it can form two seals to reach, can greatly improve the sealing capacity of oil-well pump, the loss of oil-well pump is reduced, thereby the oil-well oil production volume has been increased, obtain better economic benefits and social, and the demand of using is satisfied.
In the embodiment, a threaded hole communicated with the inner wall of the pump cylinder upper joint 2 is formed in the left side of the top of the pump cylinder upper joint 2, a set screw 32 is sleeved in the threaded hole, the set screw 32 is positioned above the pull rod 1 and matched with the pull rod 1, the set screw 32 can be driven to press and fix the pull rod 1 by utilizing the threaded connection relation of the set screw 32 and the threaded hole, a locking block 30 is arranged on the inner wall of the bottom of the pump cylinder lock sleeve 5, an annular groove clamped with the locking block 30 is formed in the outer side of the right end of the pump cylinder upper joint 2, a locking block spring 31 connected with the inner wall of the pump cylinder lock sleeve 5 is arranged on the locking block 30, the first steel ball 9 is a steel ball with the diameter of 35, the second steel ball 24 is a steel ball with the diameter of 43, a plurality of sieve pores are formed in the inner wall of the sieve tube 21, a first external thread is arranged on the outer side of the left end of the spring seat 18, a first internal thread is formed in the inner side of the right end of the suction valve sleeve 26, the first internal thread is meshed with the first external thread, the valve sleeve spring seat 18 is conveniently connected with the suction valve sleeve 26 by utilizing the meshing connection relation of the first internal thread and the first external thread, the second internal thread is arranged on the inner side of the right end of the pump cylinder 6, the second external thread meshed with the second internal thread is arranged on the outer side of the left end of the suction valve sleeve 26, the right end of the pull rod 1 is fixedly connected with a threaded column, the left end of the pull rod lower joint 7 is provided with a thread groove in threaded connection with the threaded column, the outer side of the pull rod lower joint 7 is not contacted with the inner wall of the pump cylinder 6, the outer side of the plunger coupling 11 is contacted with the inner wall of the pump cylinder 6, the outer side of the plunger 12 is contacted with the inner wall of the pump cylinder 6, the novel fixing valve formed by the ball seat II 23, the second steel ball 24, the valve sleeve spring 25 and the suction valve sleeve 26 is matched with the original fixing valve function, the effect of the double-acting fixing valve is achieved, two seals can be formed, the sealing capability of the oil well pump can be greatly improved, the leakage amount of the oil well pump is reduced, and the pumping efficiency of the oil well pump is increased, so that the oil yield of the oil well is improved, better economic benefit and social benefit are obtained, and the use requirement is met.
In this embodiment, the plunger upper joint 8, the first steel ball 9, the plunger upper spring 29, the ball seat 10, the plunger coupling 11, the plunger 12, the bushing 13, the plunger lower joint 14, the ball seat three, the third steel ball and the plunger lower spring 28 cooperate to form a traveling valve capable of moving along with the pull rod 1, the valve sleeve spring seat 18, the valve sleeve 19, the ball seat four, the fourth steel ball and the valve inner spring form a fixed valve, and in addition, the ball seat two 23, the second steel ball 24, the valve sleeve spring 25 and the suction valve sleeve 26 can form a brand new other fixed valve, so that the double-acting fixed valve has a double-acting fixed valve effect, and the double-acting fixed valve forms two seals, so that the sealing capability of the oil pump can be greatly improved, the leakage amount of the oil pump can be reduced, the oil production amount of the oil pump can be increased, and the economic benefit and the social benefit of the oil pump can be improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a super viscous crude horizontal well double-acting fixed valve oil-well pump, includes the oil-well pump main part, the oil-well pump main part includes pump barrel (6), its characterized in that, be equipped with pull rod (1) in pump barrel (6), pump barrel (6) left end threaded connection has pump barrel lock sleeve (5), pump barrel lock sleeve (5)'s outside fixed cover is equipped with pump seat (4), pump seat (4) outside threaded sleeve is equipped with coupling (3), pump barrel lock sleeve (5) left end threaded connection has pump barrel top connection (2) that are located coupling (3), pull rod (1) left end runs through pump barrel lock sleeve (5) and pump barrel top connection (2) and threaded connection have pull rod top connection (33) in proper order, pull rod (1) right-hand member threaded connection has pull rod lower joint (7) that are located pump barrel (6), plunger top connection (8) are connected with to pull rod lower joint (7) right-hand member threaded connection, plunger top connection (8) right-hand member inboard threaded connection has ball seat one (10) and plunger (11), plunger (11) of plunger (11) and one side of plunger (10) and one side ball seat (9) of the inside of a ball seat (9) are provided with between the ball joint (9) on the left side and the first joint of the side of a left side of a ball (9, the right end outside threaded connection of plunger coupling (11) has plunger (12), the inside threaded connection of right-hand member of plunger (12) has plunger lower clutch (14), the left end movable contact of plunger lower clutch (14) has bushing (13) of cartridge in plunger (12), the outside of plunger lower clutch (14) is provided with scrapes sand circle (15), scrape sand spiral (16) have been seted up in the outside of sand circle (15), the left end inboard of plunger lower clutch (14) is provided with ball seat three (27), the inboard movable sleeve of ball seat three (27) is equipped with the third steel ball, be provided with plunger lower spring (28) between the outside of third steel ball and the left side inner wall of bushing (13), the outside fixed sleeve of plunger lower clutch (14) has with scrape sand circle (15) right side movable contact's retaining ring (17), the right-hand valve pocket (18) that is equipped with of pump cylinder (6), the right-hand member outside threaded sleeve of valve pocket (18) is equipped with valve pocket (19), the inside threaded connection of right-hand member of valve pocket (19) has screen pipe top connection (22), the left end movable contact of top of valve (22) has ball seat three (19), the inside movable sleeve of ball seat (21) is equipped with, the fourth threaded connection of ball seat (21) is equipped with inside the ball seat (21) on the inside movable sleeve of ball seat (21), the inner side of the right end of the screen pipe (21) is connected with a screen pipe plug (20) through threads;
the left end outside threaded connection of valve pocket spring holder (18) has suction valve pocket (26), and four intercommunicating pores have been seted up to suction valve pocket (26)'s left end in annular equidistant, suction valve pocket (26) threaded connection is inboard in the right-hand member of pump cylinder (6), and the left end movable contact of valve pocket spring holder (18) has ball seat two (23) of cartridge in suction valve pocket (26), and the movable cover is equipped with second steel ball (24) in ball seat two (23), is provided with valve pocket spring (25) between the outside of second steel ball (24) and the left end inner wall of suction valve pocket (26).
2. The double-acting fixed valve oil well pump of the super heavy oil horizontal well according to claim 1, wherein the left side of the top of the upper joint (2) of the pump barrel is provided with a threaded hole communicated with the inner wall of the upper joint, a set screw (32) is sleeved in the threaded hole, and the set screw (32) is positioned above the pull rod (1) and matched with the pull rod (1).
3. The double-acting fixed valve oil well pump of claim 1, wherein a locking block (30) is arranged on the inner wall of the bottom of the pump barrel lock sleeve (5), an annular groove clamped with the locking block (30) is arranged on the outer side of the right end of the pump barrel upper joint (2), and a locking block spring (31) connected with the inner wall of the pump barrel lock sleeve (5) is arranged on the locking block (30).
4. Double acting fixed valve oil well pump according to claim 1, characterized in that the first steel ball (9) is a steel ball with a diameter of 35.
5. Double acting fixed valve oil well pump for super viscous oil horizontal well according to claim 1, characterized in that the second steel ball (24) is a steel ball with diameter 43.
6. Double-acting fixed valve oil well pump for super heavy oil horizontal well according to claim 1, characterized in that the inner wall of the sieve tube (21) is provided with a plurality of sieve holes.
7. The double-acting fixed valve oil well pump for the super heavy oil horizontal well according to claim 1, wherein a first external thread is arranged on the outer side of the left end of the valve sleeve spring seat (18), a first internal thread is arranged on the inner side of the right end of the suction valve sleeve (26), the first internal thread is meshed with the first external thread, a second internal thread is arranged on the inner side of the right end of the pump cylinder (6), and a second external thread meshed with the second internal thread is arranged on the outer side of the left end of the suction valve sleeve (26).
8. The double-acting fixed valve oil well pump of the super heavy oil horizontal well according to claim 1, wherein the right end of the pull rod (1) is fixedly connected with a threaded column, and the left end of the pull rod lower joint (7) is provided with a thread groove in threaded connection with the threaded column.
9. The double-acting fixed valve oil well pump for the super heavy oil horizontal well according to claim 1, wherein the outer side of the pull rod lower joint (7) is not contacted with the inner wall of the pump barrel (6), the outer side of the plunger coupling (11) is contacted with the inner wall of the pump barrel (6), and the outer side of the plunger (12) is contacted with the inner wall of the pump barrel (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210155839.7A CN114542439B (en) | 2022-02-21 | 2022-02-21 | Double-acting fixed valve oil pump for super heavy oil horizontal well |
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| CN114542439B true CN114542439B (en) | 2024-02-23 |
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| CN114542439A (en) | 2022-05-27 |
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