CN216241222U - Injection and production integrated pump with anti-airlock oil-gas mixed pumping function - Google Patents
Injection and production integrated pump with anti-airlock oil-gas mixed pumping function Download PDFInfo
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- CN216241222U CN216241222U CN202220384420.4U CN202220384420U CN216241222U CN 216241222 U CN216241222 U CN 216241222U CN 202220384420 U CN202220384420 U CN 202220384420U CN 216241222 U CN216241222 U CN 216241222U
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- reversing
- oil
- injection
- gas
- pump
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- 238000002347 injection Methods 0.000 title claims abstract description 44
- 239000007924 injection Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000005086 pumping Methods 0.000 title claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000017105 transposition Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 40
- 239000007788 liquid Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an injection-production integrated pump with an air lock prevention oil-gas mixed pumping function, which comprises a pump cylinder coupling, a pump cylinder, a positioning cylinder, a reversing sleeve, an outer cylinder and a lower connector pipe which are sequentially communicated from top to bottom, wherein a positioning connector is jointly and fixedly sleeved between the positioning cylinder and the reversing sleeve, plungers are arranged in the pump cylinder and the positioning cylinder, the plungers are hermetically and slidably connected with the inner walls of the pump cylinder and the positioning cylinder, a bias valve body is fixedly sleeved on the positioning cylinder, an oil inlet cavity communicated with the positioning cylinder is formed in the lower end of the bias valve body, an oil inlet valve is arranged in the oil inlet cavity, and a limiting spring is jointly and fixedly connected between the upper end of the oil inlet valve and the inner top wall of the oil inlet cavity. The utility model has various functions, can discharge the produced gas in the stratum out of the shaft, can realize no air lock of the oil well pump, and simultaneously realizes the integration of injection and production.
Description
Technical Field
The utility model relates to the technical field of oil exploitation, in particular to an injection-production integrated pump with an anti-airlock oil-gas mixed pumping function.
Background
Gas injection thermal recovery is the most effective measure for ensuring normal recovery of a heavy oil well, but after the gas injection process is finished, the gas content of an oil layer is increased, so that the problem of gas lock of an oil well pump is more likely to occur in the early-stage recovery process, and normal recovery is seriously influenced. In order to solve the problems, the conventional method is to add gas into the anchor by the injection-production integrated pump to solve the gas lock problem.
The conventional injection and production integrated pump can only solve the problems of the same tubular column gas injection process and oil production, and the gas lock phenomenon is frequent in the early production period. The conventional gas anchor can only achieve the effect of separating oil, gas and water, but a large amount of gas enters the oil sleeve annulus, the liquid level in the gas anchor rises, so that the pump gas lock is caused when pumping is started, the ineffective pumping time is prolonged, the liquid level in the oil layer rises due to the rise of the liquid level in the oil sleeve annulus, the liquid supply capacity of the oil layer is reduced due to the rise of the bottom hole pressure, and the production effect of well opening of an oil well is reduced.
Therefore, the injection and production integrated pump with the air lock prevention oil-gas mixed pumping function is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides an injection-production integrated pump with an anti-airlock oil-gas mixed pumping function.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an injection and production integrated pump with an air lock prevention oil-gas mixed pumping function comprises a pump barrel coupling, a pump barrel, a positioning barrel, a reversing sleeve, an outer barrel and a lower connector pipe which are sequentially communicated from top to bottom, wherein a positioning joint is fixedly sleeved between the positioning barrel and the reversing sleeve together, a plunger is arranged in the pump barrel and the positioning barrel, the plunger is in sealing sliding connection with the inner walls of the pump barrel and the positioning barrel, a bias valve body is fixedly sleeved on the positioning barrel, an oil inlet cavity communicated with the positioning barrel is formed in the lower end of the bias valve body, an oil inlet valve is arranged in the oil inlet cavity, a limiting spring is fixedly connected between the upper end of the oil inlet valve and the inner top wall of the oil inlet cavity together, a reversing pipe is arranged in the reversing sleeve, an air injection connector is fixedly connected between the reversing sleeve and the outer barrel together, the reversing pipe penetrates through the air injection connector, a pull rod with a T-shaped section is arranged in the reversing pipe, and an air injection valve ball is arranged at the communication position of the lower connector pipe and the outer barrel, the lower extreme of pull rod run through the intraductal diapire of switching-over and with gas injection valve ball fixed connection, the transposition slide rail has been seted up on the outer peripheral face of switching-over pipe, the transposition slide rail has two long tracks and two short tracks that crisscross setting each other to constitute, every adjacent two all communicate through the inclined rail between long track and the short track, the gas injection joint is gone up solid the guide and is connected with the switching-over nail that two bilateral symmetry set up, two the equal sliding connection of switching-over nail one end is in the transposition slide rail, be equipped with the switching-over spring on the switching-over cover inner wall, switching-over spring upper end fixedly connected with spring holder, the spring holder cover is established on the switching-over pipe, on the switching-over global outside of tubes and at spring holder upper end fixedly connected with briquetting, the briquetting offsets with spring holder upper end.
Preferably, an oil outlet valve is arranged in the plunger.
Preferably, the lower end of the oil inlet cavity is communicated with a perforated sieve pipe.
Preferably, a pressurizing spring is fixedly connected between the gas injection valve ball and the lower end of the reversing pipe, and the pressurizing spring is sleeved on the pull rod.
Preferably, the outer side of the upper end of the reversing pipe is fixedly sleeved with a limiting step.
Preferably, the reversing spring may be compressed or twisted.
Compared with the prior art, the device has the advantages that:
1. the interchange of the gas injection process of the stationary pipe column and the oil production can be met;
2. the problem of air lock after gas injection is solved;
3. the oil-gas mixed drainage can be realized, and the influence of gas accumulation on the stratum liquid production is avoided;
4. the tool has simple structure, mature technology, safety and reliability.
Drawings
FIG. 1 is a partial perspective view of the front side of an injection-production integral pump with an anti-airlock oil-gas mixture pumping function according to the present invention;
fig. 2 is a partial plan view of the outer peripheral surface of a ring pipe in the injection and production integrated pump with the air lock prevention oil-gas mixture pumping function provided by the utility model.
In the figure: 1 pump cylinder coupling, 2 plunger pistons, 3 pump cylinders, 4 oil outlet valves, 5 oil inlet valves, 6 positioning cylinders, 7 perforated sieve pipes, 8 reversing pipes, 9 positioning joints, 10 spring seats, 11 reversing springs, 12 reversing sleeves, 13 gas injection joints, 14 reversing nails, 15 outer cylinders, 16 pull rods, 17 pressurizing springs, 18 gas injection valve balls and 19 lower joint pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, an injection-production integrated pump with an anti-airlock oil-gas mixed pumping function comprises a pump barrel coupling 1, a pump barrel 3, a positioning barrel 6, a reversing sleeve 12, an outer barrel 15 and a lower connector pipe 19 which are sequentially communicated from top to bottom, wherein a positioning connector 9 is fixedly sleeved between the positioning barrel 6 and the reversing sleeve 12, a plunger 2 is arranged in the pump barrel 3 and the positioning barrel 6, the plunger 2 is connected with the inner walls of the pump barrel 3 and the positioning barrel 6 in a sealing and sliding manner, and an oil outlet valve 4 is arranged in the plunger 2 and used for discharging an oil-gas mixture. The positioning cylinder 6 is fixedly sleeved with an offset valve body, the lower end of the offset valve body is provided with an oil inlet cavity communicated with the positioning cylinder 6, the lower end of the oil inlet cavity is communicated with a punching sieve tube 7 to play roles of oil pumping and filtering, an oil inlet valve 5 is arranged in the oil inlet cavity, and a limiting spring is fixedly connected between the upper end of the oil inlet valve 5 and the inner top wall of the oil inlet cavity together, so that the oil inlet cavity is conveniently and effectively sealed.
When the injection and production integrated pump with the air lock prevention oil-gas mixed pumping function is in an oil extraction working state, the plunger 2 reciprocates up and down, and the bottom dead center of the plunger 2 is always positioned below the oil inlet valve 5 during descending. When the plunger 2 moves downwards, the oil outlet valve 4 moves upwards, the liquid inlet at the lower part of the plunger 2 is opened, high-pressure oil-gas two-phase fluid in the pump barrel 3 enters the plunger 2, and meanwhile, the oil inlet valve 5 closes an oil inlet cavity under the action of the self gravity and the thrust of the high-pressure fluid in the pump barrel 3 to a lower piston; when the plunger 2 of the oil well pump ascends, the oil outlet valve 4 descends and closes the liquid inlet of the plunger 2, and the oil-gas two-phase fluid entering the plunger 2 is lifted to the ground; the ascending of the plunger 2 can also cause the pressure in the pump barrel 3 to be reduced, the oil inlet valve 5 moves upwards under the action of the thrust of the well product to the piston to compress the limiting spring, the well product enters the pump barrel 3 through the perforated sieve tube 7 and the oil inlet cavity, and the two-phase fluid of the oil and the gas in the well is lifted to the ground along with the repeated descending and ascending of the plunger 2. Because the oil inlet valve 5 and the plunger 2 adopt a biasing structure, and the bottom dead center position of the plunger 2 is positioned below the oil inlet valve 5, the zero clearance is achieved in the working process, the gas compression space in the pump barrel 3 is eliminated, meanwhile, the gas is forcibly discharged by utilizing the incompressible characteristic of liquid, the effect of preventing gas lock is achieved, and high-efficiency oil-gas mixed pumping is realized.
A reversing pipe 8 is arranged in a reversing sleeve 12, an air injection joint 13 is fixedly connected between the reversing sleeve 12 and an outer cylinder 15 together, the reversing pipe 8 penetrates through the air injection joint 13, a pull rod 16 with a T-shaped section is arranged in the reversing pipe 8, an air injection valve ball 18 is arranged at the communication part of a lower joint pipe 19 and the outer cylinder 15, the lower end of the pull rod 16 penetrates through the inner bottom wall of the reversing pipe 8 and is fixedly connected with the air injection valve ball 18, a pressurizing spring 17 is fixedly connected between the air injection valve ball 18 and the lower end of the reversing pipe 8 together, the pressurizing spring 17 is sleeved on the pull rod 16, a transposition slide rail is arranged on the outer peripheral surface of the reversing pipe 8, a limit step is fixedly sleeved on the outer side of the upper end of the reversing pipe 8, the transposition slide rail is effectively prevented from being damaged by overpressure of a plunger 2, the transposition slide rail is composed of two long rails and two short rails which are arranged in a staggered mode, every two adjacent long rails and short rails are communicated through an inclined rail, the air injection joint 13 is of a bridge-passing structure, and the gas injection joint 13 is connected with two reversing nails 14 which are arranged in bilateral symmetry, one ends of the two reversing nails 14 are all connected in the transposition slide rail in a sliding manner, a reversing spring 11 is arranged on the inner wall of the reversing sleeve 12, the upper end of the reversing spring 11 is fixedly connected with a spring seat 10, the spring seat 10 is sleeved on the reversing pipe 8, a pressing block is fixedly connected on the outer peripheral surface of the reversing pipe 8 and the upper end of the spring seat 10, the pressing block is abutted against the upper end of the spring seat 10, and the reversing spring 11 can be compressed or twisted.
The switching of long and short tracks can be realized by pressing the reversing pipe 8 downwards, and gas injection or oil extraction is carried out. The specific working principle is as follows: when gas injection is needed, the rod column is lowered to enable the plunger 2 to press the reversing pipe 8 downwards, the reversing nail 14 enters the long rail on the outer side of the reversing pipe 8 under the cooperation of the inclined rail, the plunger 2 is lifted upwards at the moment, the reversing pipe 8 moves upwards under the action of the reversing spring 11 and simultaneously drives the pull rod 16 and the gas injection valve ball 18 to move upwards, the reversing pipe 8 is located on the long rail at the moment, the gas injection valve ball 18 has enough ascending space, and the gas injection valve ball 18 is separated from a valve seat in the lower connector pipe 19 to open a gas injection channel.
When oil extraction is needed, the up action is repeated, the rod column is lowered to enable the plunger 2 to press the reversing pipe 8 downwards, the reversing nail 14 is reversed to enter a short track of the reversing pipe 8, the reversing pipe 8 presses the pressurizing spring 17 downwards, the gas injection valve ball 18 contacts a valve seat in the lower joint pipe 19 under the pressure action of the pressurizing spring 17 to form sealing, and a gas injection channel is closed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. An injection and production integrated pump with an anti-airlock oil-gas mixed pumping function comprises a pump barrel coupling (1), a pump barrel (3), a positioning barrel (6), a reversing sleeve (12), an outer barrel (15) and a lower connector pipe (19) which are sequentially communicated from top to bottom, and is characterized in that a positioning connector (9) is fixedly sleeved between the positioning barrel (6) and the reversing sleeve (12) together, a plunger (2) is arranged in the pump barrel (3) and the positioning barrel (6), the plunger (2) is in sealed sliding connection with the inner walls of the pump barrel (3) and the positioning barrel (6), a bias valve body is fixedly sleeved on the positioning barrel (6), an oil inlet cavity communicated with the positioning barrel (6) is formed in the lower end of the bias valve body, an oil inlet valve (5) is arranged in the oil inlet cavity, a limit spring is fixedly connected between the upper end of the oil inlet valve (5) and the inner top wall of the oil inlet cavity together, a reversing pipe (8) is arranged in the reversing sleeve (12), the gas injection joint (13) is fixedly connected between the reversing sleeve (12) and the outer barrel (15) together, the reversing pipe (8) penetrates through the gas injection joint (13) and is arranged, a pull rod (16) with a T-shaped section is arranged in the reversing pipe (8), a gas injection valve ball (18) is arranged at the communication position of the lower joint pipe (19) and the outer barrel (15), the lower end of the pull rod (16) penetrates through the inner bottom wall of the reversing pipe (8) and is fixedly connected with the gas injection valve ball (18), a transposition slide rail is arranged on the outer peripheral surface of the reversing pipe (8), the transposition slide rail comprises two long rails and two short rails which are staggered with each other, every two adjacent long rails and short rails are communicated with each other through an inclined rail, two reversing nails (14) which are arranged in bilateral symmetry are fixedly guided on the gas injection joint (13), one ends of the two reversing nails (14) are connected in the transposition slide rail in a sliding manner, the reversing pipe is characterized in that a reversing spring (11) is arranged on the inner wall of the reversing sleeve (12), a spring seat (10) is fixedly connected to the upper end of the reversing spring (11), the reversing pipe (8) is sleeved with the spring seat (10), a pressing block is fixedly connected to the outer peripheral surface of the reversing pipe (8) and the upper end of the spring seat (10), and the pressing block is abutted to the upper end of the spring seat (10).
2. The injection and production integrated pump with the air lock prevention oil-gas co-pumping function is characterized in that an oil outlet valve (4) is arranged in the plunger (2).
3. The injection-production integrated pump with the air lock prevention oil-gas co-pumping function as claimed in claim 1, wherein the lower end of the oil inlet cavity is communicated with a perforated sieve tube (7).
4. The injection-production integrated pump with the air lock prevention oil-gas co-pumping function according to claim 1, characterized in that a pressurizing spring (17) is fixedly connected between the gas injection valve ball (18) and the lower end of the reversing pipe (8), and the pressurizing spring (17) is sleeved on the pull rod (16).
5. The injection-production integrated pump with the airlock-preventing oil-gas mixed pumping function as claimed in claim 1, wherein a limiting step is fixedly sleeved on the outer side of the upper end of the reversing pipe (8).
6. The injection-production integrated pump with the function of preventing air lock oil-gas mixture pumping according to claim 1, characterized in that the reversing spring (11) can be compressed and also can be twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384420.4U CN216241222U (en) | 2022-02-25 | 2022-02-25 | Injection and production integrated pump with anti-airlock oil-gas mixed pumping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220384420.4U CN216241222U (en) | 2022-02-25 | 2022-02-25 | Injection and production integrated pump with anti-airlock oil-gas mixed pumping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241222U true CN216241222U (en) | 2022-04-08 |
Family
ID=80962605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220384420.4U Active CN216241222U (en) | 2022-02-25 | 2022-02-25 | Injection and production integrated pump with anti-airlock oil-gas mixed pumping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241222U (en) |
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2022
- 2022-02-25 CN CN202220384420.4U patent/CN216241222U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Qingmin Inventor after: Tian Xiaoning Inventor after: Hu Shanshan Inventor before: Li Feng Inventor before: Zhang Zhiguo Inventor before: Liu Qingmin Inventor before: Zhang Ning Inventor before: Liu Lei Inventor before: Zhao Weihua Inventor before: Tian Xiaoning Inventor before: Hu Shanshan |