CN220687547U

CN220687547U - Oil field tesla valve oil pump

Info

Publication number: CN220687547U
Application number: CN202322428766.7U
Authority: CN
Inventors: 陆阳; 杜浩然; 胡才富; 舒芳; 龚大建; 于晓荣
Original assignee: Shanghai Ruida Fengzhi Energy Technology Co ltd
Current assignee: Shanghai Ruida Fengzhi Energy Technology Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-03-29
Anticipated expiration: 2033-09-07

Abstract

The utility model discloses an oilfield Tesla valve oil pump which comprises a shell, a top cover part and a liquid storage part, wherein the top cover part and the liquid storage part are arranged in the shell; the bracket is arranged in the liquid storage part; the piston is arranged in the liquid storage part and is positioned above the bracket and used for conveying the oil body; the oil outlet part is arranged in the liquid storage part and is positioned above the piston, a first oil cavity is formed between the oil outlet part and the bracket, and a second oil cavity is formed between the oil outlet part and the top cover part and is used for storing oil bodies; the support, the piston and the oil outlet part are respectively provided with a Tesla valve; the center of the oil outlet part is penetrated with a sucker rod, the lower end of the sucker rod is connected with a piston, and the sucker rod is used for driving the piston to move up and down so as to suck oil from the oil inlet and flow out from the oil outlet through a Tesla valve. The problem that the valve and the ball seat are damaged in movement and are not tightly closed, so that the liquid supply of the pump barrel is insufficient, and the pump efficiency is reduced is solved.

Description

Oil field tesla valve oil pump

Technical Field

The disclosure relates to the technical field of oil exploitation, in particular to an oil field Tesla valve oil pump.

Background

The oil pump is a common underground device driven by the oil pump to pump the crude oil or water in the well to the ground, and the common oil pump mainly comprises four parts of a pump barrel, a suction valve, a piston and a discharge valve. When the oil pump is used for pumping, the depth of the oil pump is generally from hundreds of meters to thousands of meters, and the working pressure in the pump cylinder is about 10 MPa. The liquid pumped by the device often contains substances such as sand, wax, water, gas, rock fragments, corrosive gas and the like, and the working environment is complex and the condition is bad.

Working principle of the existing oil pump: during the upstroke, the sucker rod drives the piston to move upwards, meanwhile, the fixed valve is opened, the liquid in the well enters the pump cylinder under the action of pressure difference, the floating valve is closed, and the liquid is brought into the oil pipe by the piston until the liquid is lifted to the ground; during the down stroke, the fixed valve is closed, the movable valve is opened, the liquid in the pump cylinder enters the upper part of the piston through the movable valve, the reciprocating action is carried out, and the liquid in the well can be pumped to the ground.

According to the oil body, the oil body is in and out of the pump body through the opening and closing of the valve, more impurities exist in the oil body, and the impurities are clamped between the valve and the ball seat, so that the valve and the ball seat cannot be closed; and the valve and the ball seat are frequently opened and closed along with long-time work, so that the problem of abrasion and damage can occur; and in the subsequent work, the valve and the ball seat are not tightly closed, so that the oil body is lost, and even the problem that the liquid supply of a pump barrel is insufficient and the pump efficiency is reduced occurs.

Disclosure of Invention

The purpose of the present disclosure is to provide an oilfield tesla valve oil-well pump, it has solved current valve and ball seat motion damage, closes not tight and lead to the pump barrel to supply liquid inadequately, problem that the pump efficiency reduces.

In order to achieve the above object, according to a first aspect of the present disclosure, an oilfield tesla valve oil pump is provided, which includes a housing, a top cover part and a liquid storage part, wherein the top cover part and the liquid storage part are arranged in the housing, an oil inlet is formed at the lower end part of the liquid storage part, an oil outlet is formed in the top cover part, and the top cover part and the liquid storage part are communicated and integrally formed to form a pump body; and

the bracket is arranged in the liquid storage part;

the piston is arranged in the liquid storage part and is positioned above the bracket and used for conveying the oil body;

the oil outlet part is arranged in the liquid storage part and is positioned above the piston, a first oil cavity is formed between the oil outlet part and the bracket, and a second oil cavity is formed between the oil outlet part and the top cover part and is used for storing oil bodies;

the support, the piston and the oil outlet part are respectively provided with a Tesla valve; the center of the oil outlet part is penetrated with a sucker rod, the lower end of the sucker rod is connected with the piston and used for driving the piston to move up and down so as to suck oil from the oil inlet and flow out from the oil outlet through a Tesla valve.

In some embodiments, the tesla valve includes an oil inlet end tesla valve disposed on the bracket, a piston tesla valve disposed inside the piston, and an upper end tesla valve disposed inside the oil outlet portion.

In some embodiments, three oil inlet tesla valves are arranged, and the three oil inlet tesla valves are connected with each other; the oil outlet end of the Tesla valve at the oil inlet end is provided with a first outlet, and the diameter of the first outlet is gradually reduced from top to bottom.

In some embodiments, two piston tesla valves are provided, the two piston tesla valves are connected with each other, and the two piston tesla valves are provided at the center position of the piston;

the oil outlet end of the piston Tesla valve is provided with a second outlet, and the diameter of the second outlet is gradually reduced from top to bottom.

In some embodiments, two upper tesla valves are provided, and the two upper tesla valves are respectively provided at two sides of the sucker rod;

the oil outlet end of the upper tesla valve is provided with a third outlet, and the diameter of the third outlet is gradually reduced from top to bottom.

In some embodiments, an annular packing block is arranged in the oil outlet part, the packing block is sleeved on the sucker rod, and the outer wall of the sucker rod 1 is attached to the packing block 18.

In some embodiments, a flow disturbing net is screwed to one end of the support near the oil inlet.

In some embodiments, the upper end and the lower end of the shell are both open, and the shell is sleeved with the outer side wall of the liquid storage part.

In some embodiments, the piston is hollow and the piston outer sidewall abuts the reservoir inner sidewall.

In some embodiments, the bracket is threadably coupled to the housing.

Through adopting above-mentioned technical scheme, when the oil-well pump gets into underground operation, oil inlet and liquid level contact, the subsurface fluid receives formation pressure, get into first oil pocket through the tesla valve on the support by the oil inlet, promote the sucker rod and descend, make the piston downstream, so can make the oil body in first oil pocket flow to between piston and the oil portion through the tesla valve in the piston, pull up the sucker rod afterwards, drive the piston upward movement simultaneously, because the unidirectional flow of tesla valve, make the liquid between piston and the oil portion drive through the tesla valve in the oil portion by the piston and get into the second oil pocket, finally discharge and collect by the oil-out.

The effect that can be reached through the above-mentioned setting:

1. by arranging the Tesla valve, the pump body has no moving parts such as a valve, a ball seat and the like, the operation is reliable, the phenomenon of clamping between the valve and the ball seat can not occur, and compared with the prior sucker-rod pump, the pump has longer operation life;

2. after the underground oil body enters the first oil cavity and the second oil cavity, the oil body can be prevented from flowing back due to the unidirectional mobility of the Tesla valve; the gas in the valve can be discharged, so that the phenomenon of air lock is avoided, and the pump efficiency is improved;

3. the oil pump has the advantages of simple structure, low processing cost and practicability.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure.

In the drawings:

fig. 1 is a cross-sectional view of the overall structure of the present utility model.

Reference numerals illustrate:

1. a sucker rod; 2. an oil outlet; 3. a second oil chamber; 4. a third outlet; 5. an upper tesla valve; 6. a top cover part; 7. a liquid storage part; 8. a first oil chamber; 9. a second outlet; 10. a piston tesla valve; 11. a piston; 12. a first outlet; 13. an oil inlet end Tesla valve; 14. an oil outlet part; 15. a disturbance flow network; 16. a bracket; 17. a housing; 18. a packing block; 20. and an oil inlet.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

The present disclosure provides an oilfield tesla valve oil pump, as shown in fig. 1, comprising a housing 17, a top cover part 6 and a liquid storage part 7, wherein the top cover part 6 and the liquid storage part 7 are arranged in the housing 17, an oil inlet 20 is arranged at the lower end part of the liquid storage part 7, an oil outlet 2 is arranged on the top cover, and the top cover part 6 and the liquid storage part 7 are communicated and integrally formed to form a pump body; and a holder 16 provided in the liquid storage portion 7; a piston 11 disposed in the liquid storage portion 7 and above the bracket 16 for conveying the oil body; an oil outlet portion 14 disposed in the liquid storage portion 7 and above the piston 11, wherein a first oil chamber 8 is formed between the oil outlet portion 14 and the bracket 16, and a second oil chamber 3 is formed between the oil outlet portion 14 and the top cover portion 6 for storing oil; the support 16, the piston 11 and the oil outlet 14 are respectively provided with a Tesla valve; the center of the oil outlet part 14 is penetrated with a sucker rod 1, the lower end of the sucker rod 1 is connected with a piston 11, and the sucker rod is used for driving the piston 11 to move up and down so as to suck oil from an oil inlet 20 and flow out from an oil outlet 2 through a Tesla valve.

Through the structure, when the oil pump works underground, the oil inlet 20 is in contact with the liquid level, underground fluid is subjected to formation pressure, enters the first oil cavity 8 from the oil inlet 20 through the Tesla valve on the support 16, pushes the sucker rod 1 to move downwards, enables the piston 11 to move downwards, enables oil in the first oil cavity 8 to flow between the piston 11 and the oil outlet part 14 through the Tesla valve in the piston 11, then pulls the sucker rod 1 upwards, simultaneously drives the piston 11 to move upwards, and enables liquid between the piston 11 and the oil outlet part 14 to enter the second oil cavity 3 through the Tesla valve in the oil outlet part 14 by the piston 11 due to unidirectional mobility of the Tesla valve, and finally is discharged and collected by the oil outlet 2.

In some embodiments, as shown in fig. 1, the tesla valve includes an oil inlet tesla valve 13, a piston tesla valve 10, and an upper tesla valve 5, the oil inlet tesla valve 13 is disposed on a bracket 16, the piston tesla valve 10 is disposed inside the piston 11, and the upper tesla valve 5 is disposed in an oil outlet portion 14.

Through the arrangement of the structure, due to the unidirectional mobility of the Tesla valve, an oil body can enter the first oil cavity 8 from the Tesla valve 13 at the oil inlet end, then the piston 11 moves up and down, the Tesla valve 10 drives the oil body to move up through the piston 11, and finally the oil body enters the second oil cavity 3 from the Tesla valve 5 at the upper end and is discharged and collected through the oil outlet 2.

In some embodiments, as shown in fig. 1, three oil inlet tesla valves 13 are provided, and the three oil inlet tesla valves 13 are connected to each other; the oil outlet end of the oil inlet end Tesla valve 13 is provided with a first outlet 12, and the diameter of the first outlet 12 gradually reduces from top to bottom.

Through the arrangement of the structure, the oil bodies can respectively enter the three tesla valves 13 at the oil inlet ends, so that the volume flow of the oil bodies can be ensured; when the oil body entering the first oil cavity 8 flows back, the diameter of the first outlet 12 gradually becomes smaller from top to bottom, so that the oil body flows back in the Tesla valve 13 at the oil inlet end, the reverse inhibition effect of the Tesla valve is in direct proportion to the flow speed of the liquid, the oil body flows back, and a better reverse sealing effect is achieved.

In some embodiments, as shown in fig. 1, two piston tesla valves 10 are provided, the two piston tesla valves 10 are connected to each other, and the two piston tesla valves 10 are provided at the center of the piston 11; the oil outlet end of the piston Tesla valve 10 is provided with a second outlet 9, and the diameter of the second outlet 9 gradually reduces from top to bottom.

Through the structure, the oil bodies can respectively enter the two piston tesla valves 10, so that the volume flow of the oil bodies can be ensured; when the oil body entering the upper end of the piston 11 flows back, the diameter of the second outlet 9 gradually becomes smaller from top to bottom, so that the oil body flows back in the piston Tesla valve 10 quickly, the reverse inhibition effect of the Tesla valve is in direct proportion to the flow rate of the liquid, the oil body flows back and a better reverse sealing effect is achieved.

In some embodiments, as shown in fig. 1, two upper tesla valves 5 are provided, and the two upper tesla valves 5 are respectively provided at two sides of the sucker rod 1; the oil outlet end of the upper Tesla valve 5 is provided with a third outlet 4, and the diameter of the third outlet 4 gradually reduces from top to bottom.

Through the arrangement of the structure, the oil bodies can respectively enter the two upper tesla valves 5, so that the volume flow of the oil bodies can be ensured; when the oil body entering the second oil cavity 3 flows back, the diameter of the third outlet 4 gradually becomes smaller from top to bottom, so that the oil body flows back in the upper Tesla valve 5, the reverse inhibition effect of the Tesla valve is in direct proportion to the flow speed of the liquid, the oil body flows back, and a better reverse sealing effect is achieved.

In some embodiments, as shown in fig. 1, an annular packing block 18 is disposed in the oil outlet portion 14, the packing block 18 is sleeved on the sucker rod 1, and the outer wall of the sucker rod 1 is attached to the packing block 18.

Through the structure, the packing block 18 has the limiting and sealing effects on the sucker rod 1, so that the sucker rod 1 always keeps in the vertical direction in the moving process, the operation is more stable, the sucker rod 1 is prevented from deviating from a set track, and meanwhile, the fluid in the second oil cavity 3 is prevented from leaking downwards along the sucker rod 1.

In some embodiments, as shown in fig. 1, a spoiler mesh 15 is screwed to an end of the bracket 16 near the oil inlet 20.

Through the structure, the vortex net 15 can prevent the local oil inlet 20 from generating vortex when the pressure of underground fluid is overlarge, so that the pressure of the oil inlet end of the three oil inlet end Tesla valves 13 and the flow of the entering oil body are consistent, and meanwhile, the vortex net has a filtering effect and can intercept impurities such as sand, wax and rock fragments in the fluid.

In some embodiments, as shown in fig. 1, the upper end and the lower end of the housing 17 are both open, and the housing 17 is sleeved with the outer side wall of the liquid storage part 7.

By the above structure, the housing 17 can be brought into close contact with the liquid storage portion 7, thereby protecting the liquid storage portion 7.

In some embodiments, as shown in fig. 1, the piston 11 is of a hollow structure, and an outer side wall of the piston 11 abuts against an inner side wall of the liquid storage portion 7.

By the arrangement, the weight of the piston 11 can be reduced, so that the up-and-down reciprocating motion can be better performed; and the piston 11 is tightly attached to the liquid storage part 7, so that the piston 11 drives the maximum oil body to move upwards.

In some embodiments, as shown in FIG. 1, the bracket 16 is threadably coupled to the housing 17.

By the arrangement, the connection between the bracket 16 and the shell 17 is tighter, the bracket 16 plays a role in fixing the oil inlet end Tesla valve 13, and the oil inlet end Tesla valve 13 on the bracket 16 is in a stable state when working, so that the oil pump is more stable in the use process.

In summary, when the oil pump works underground, the oil inlet 20 is contacted with the oil body, the underground oil body is subjected to formation pressure, the underground oil body is filtered and split through the interference flow net 15, the oil inlet 20 uniformly enters the three oil inlet end tesla valves 13, the oil inlet end tesla valves 13 enter the first oil cavity 8, the sucker rod 1 is pushed to move downwards, the piston 11 moves towards the oil inlet end tesla valves 13, so that liquid entering the first oil cavity 8 passes through the piston tesla valves 10 in the piston 11, flows between the oil inlet end tesla valves 13 and the piston 11 and between the piston 11 and the oil outlet part 14, then the sucker rod 1 is pulled upwards, the piston 11 is driven to move upwards, the oil body between the piston 11 and the oil outlet part 14 is brought into the upper end tesla valve 5 by the piston 11, and enters the second oil cavity 3, finally the oil is discharged and collected by the 2, the piston tesla valves 10 and the upper end tesla valve 5 are arranged, the liquid entering the first oil cavity 8 can flow through the piston tesla valves 10 and the piston tesla valve 11, the piston tesla valve 11 and the piston 11, the piston ball seat is not required to be installed, the oil inlet valve seat is not required to be installed, the oil outlet ball seat is not required to be moved, and the service life of the pump body is ensured, and the pump body can be more than the pump body is ensured to be more than the pump body.

When the oil body flows back, the one-way mobility of the Tesla valve can inhibit the oil body, and the gas in the valve can be discharged, so that the gas lock phenomenon is avoided, and the pump efficiency is improved; the diameters of the first outlet 12, the second outlet 9 and the third outlet 4 are gradually reduced from top to bottom, so that the flow rate of the returned fluid in the oil inlet end Tesla valve 13, the piston Tesla valve 10 and the upper end Tesla valve 5 is accelerated, and the reverse inhibition effect of the Tesla valve is in direct proportion to the flow rate of the liquid, so that the oil inlet end Tesla valve 13 effectively inhibits the return flow of the liquid.

The oil pump has the advantages of simple structure, low processing cost and practicability.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. The oil field Tesla valve oil pump is characterized by comprising a shell (17), and a top cover part (6) and a liquid storage part (7) which are arranged in the shell (17), wherein an oil inlet (20) is formed in the lower end part of the liquid storage part (7), an oil outlet (2) is formed in the top cover, and the top cover part (6) is communicated with the liquid storage part (7) and integrally formed into a pump body; and

a bracket (16), wherein the bracket (16) is arranged in the liquid storage part (7);

the piston (11) is arranged in the liquid storage part (7) and is positioned above the bracket (16) for conveying the oil body;

an oil outlet part (14), wherein the oil outlet part (14) is arranged in the liquid storage part (7) and is positioned above the piston (11), a first oil cavity (8) is formed between the oil outlet part (14) and the bracket (16), and a second oil cavity (3) is formed between the oil outlet part (14) and the top cover part (6) for storing an oil body;

the support (16), the piston (11) and the oil outlet part (14) are respectively provided with a Tesla valve; the center of the oil outlet part (14) is penetrated with a sucker rod (1), the lower end of the sucker rod (1) is connected with the piston (11) and is used for driving the piston (11) to move up and down so as to suck oil from the oil inlet (20) and flow out from the oil outlet (2) through a Tesla valve.

2. An oilfield tesla valve oil well pump according to claim 1, characterized in that the tesla valve comprises an oil inlet end tesla valve (13), a piston tesla valve (10) and an upper end tesla valve (5), the oil inlet end tesla valve (13) being arranged on the support (16), the piston tesla valve (10) being arranged inside the piston (11), the upper end tesla valve (5) being arranged in the oil outlet part (14).

3. An oilfield tesla valve oil well pump according to claim 2, characterized in that three of said oil inlet end tesla valves (13) are provided, and three of said oil inlet end tesla valves (13) are interconnected; the oil outlet end of the oil inlet end Tesla valve (13) is provided with a first outlet (12), and the diameter of the first outlet (12) is gradually reduced from top to bottom.

4. An oilfield tesla valve oil well pump according to claim 2, characterized in that two piston tesla valves (10) are provided, two piston tesla valves (10) are connected to each other, and two piston tesla valves (10) are provided in the central position of the piston (11);

the oil outlet end of the piston Tesla valve (10) is provided with a second outlet (9), and the diameter of the second outlet (9) is gradually reduced from top to bottom.

5. An oilfield tesla valve oil well pump according to claim 2, characterized in that two upper tesla valves (5) are provided, the two upper tesla valves (5) being arranged on both sides of the sucker rod (1) respectively;

the oil outlet end of the upper tesla valve (5) is provided with a third outlet (4), and the diameter of the third outlet (4) is gradually reduced from top to bottom.

6. The oilfield tesla valve oil well pump according to claim 1, wherein an annular packing block (18) is arranged in the oil outlet part (14), the packing block (18) is sleeved on the sucker rod (1), and the outer wall of the sucker rod (1) is attached to the packing block (18).

7. An oilfield tesla valve oil pump according to claim 1, characterized in that the end of the support (16) close to the oil inlet (20) is screwed with a turbulence net (15).

8. The oilfield tesla valve oil well pump according to claim 1, wherein the upper end and the lower end of the housing (17) are both open, and the housing (17) is sleeved with the outer side wall of the liquid storage part (7).

9. An oilfield tesla valve oil well pump according to claim 1, characterized in that the piston (11) is of hollow structure, and the outer side wall of the piston (11) is abutted against the inner side wall of the liquid storage part (7).

10. Oilfield tesla valve oil pump according to claim 1, characterized in that the bracket (16) is screwed with the housing (17).