CN217976162U

CN217976162U - Hydraulic control Y-shaped joint of casting-fishing-free blanking plug for oil production well

Info

Publication number: CN217976162U
Application number: CN202222192558.7U
Authority: CN
Inventors: 高永华; 刘华伟; 张弛; 赵岩; 张博
Original assignee: Zhongbei Zehong Tianjin Technology Co ltd
Current assignee: Zhongbei Zehong Tianjin Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-12-06
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses an oil recovery well is with exempting from to throw and drag for blanking plug hydraulic control Y type joint, its upper portion is a three-way pipe, be Y type structure, upper portion production tubular column is connected to the upside, the lower extreme has two interfaces, an interface connection charge pump connects and charge pump unit, another interface is from last to connecting gradually two public nipple joints down, the top connection, gu fixed ring, support the cover, the one-level spring housing, the second grade spring housing, the lower clutch sub-unit connection lower part production tubular column, inside is equipped with the center tube, the one-level actuating lever, the gasket, the one-level spring, the second grade actuating lever, the second grade spring, be fixed with on the support sleeve and pass and press a section of thick bamboo and lock sleeve, pass and install the pipeline joint on the pressure section of thick bamboo, gu the fixed ring outer end is connected with the disk seat, pass through torsion spring and the fixed valve plate in pivot on the disk seat. The utility model discloses a have the hydraulic control valve plate and open and realize functions such as oil recovery and test, save the steel wire and throw and drag for blanking plug activity duration, improve workover operating efficiency.

Description

Hydraulic control Y-shaped joint of casting-fishing-free blanking plug for oil production well

Technical Field

The utility model relates to an oil field separate layer exploitation and test technical field specifically are a blanking plug hydraulic control Y type connects of exempting from to throw for oil recovery well.

Background

In the current well completion and workover operation process, for an oil production pipe column of an electric submersible pump, if the layered mining operation is carried out, a Y-shaped joint needs to be put into a production pipe column, the upper end of the conventional Y-shaped joint is provided with an interface for connecting an upper production pipe column, the lower end of the conventional Y-shaped joint is provided with two interfaces, one interface is connected with an electric submersible pump unit and the other interface is connected with a lower production pipe column, a working barrel is arranged on the lower production pipe column, a blanking plug can be fished into the working barrel by using steel wires or continuous oil pipe operation during the well completion and workover operation, well fluid is lifted from the upper production pipe column to a well mouth by the electric submersible pump, and the well fluid is blocked to the lower production pipe column, so that the backflow circulation of the pumped fluid cannot be caused. When putting conventional Y type joint with the steel wire, put in speed slowly to factors such as the big inclination in oil field or high viscosity thickened oil are from leading to being difficult for carrying on the steel wire and throwing and drag for blanking plug, have great operation degree of difficulty, have increased the effect risk.

Therefore, in order to reduce the workload of the wire operation, especially for the oil well which is developed by heavy oil with large inclination or high viscosity and limited wire operation, a novel underground 'Y' -shaped joint tool which can reduce the wire operation needs to be found, so that the stability and the improvement of the oil field yield are guaranteed, and the dual working conditions of production and underground operation are met. The utility model provides a can exempt from to throw liquid accuse Y type that drags for blanking plug connects adopts this joint, can cancel the blanking plug, is controlled by hydraulic pressure and opens, guarantees the layering water injection effect, to oil field development production, and the output increase is surely produced and is had important social and popularization and application and worth.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil recovery well is with exempting from to throw and drag for blanking plug hydraulic control Y type and connects, opens through the hydraulic control valve plate, realizes extracting oil and functions such as test, saves the steel wire and throws and drag for blanking plug activity duration to avoid the oil well especially big inclination oil well or high viscosity viscous crude to influence the steel wire and throw and drag for the blanking plug, satisfy the requirement of oil well oil recovery production and test, improve workover operating efficiency, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oil recovery well is with exempting from to throw and drag for blanking plug hydraulic control Y type joint, includes the three-way pipe, is Y type structure, its characterized in that: the upper part of the three-way pipe is used for connecting an external production pipe column, two ends of the lower part of the three-way pipe are respectively connected with an electric pump joint and a double male nipple, the interior of the three-way pipe is connected with the double male nipple in a sealing way through threads, the interior of the double male nipple is connected with an upper joint in a sealing way through threads, the interior of the upper joint is connected with a fixing ring in a sealing way through threads, the interior of the fixing ring is connected with a support sleeve through threads, and the fixing ring is respectively connected with the upper joint and the support sleeve in a sealing way; the inner part of the support sleeve is connected with a primary spring sleeve through threads, and the support sleeve is connected with the primary spring sleeve in a sealing manner; the inner part of the primary spring sleeve is connected with a secondary spring sleeve through threads, and the secondary spring sleeve is hermetically connected with the primary spring sleeve; the inside threaded connection lower clutch that passes through of second grade spring housing, sealing connection between lower clutch and the second grade spring housing, the support sheathes in and is fixed with a biography pressure section of thick bamboo and lock sleeve, installs the pipeline on the biography pressure section of thick bamboo and connects, and solid fixed ring outer end is connected with the disk seat.

Preferably, fixed ring is inside through threaded connection disk seat, and sealing connection between fixed ring and the disk seat is equipped with the pivot on the disk seat, the internally mounted of pivot has the center tube, and the pivot externally mounted has torsion spring and valve plate, and when the valve plate opened around the center rotation of torsion spring and pivot, the production made the valve plate resume the moment of torsion in situ, fixed going up the valve plate through torsion spring and pivot on the disk seat.

Preferably, the pressure transmission cylinder is internally connected with the locking sleeve through threads, the pressure transmission cylinder is hermetically connected with the locking sleeve, the support sleeve is provided with an upper oblique step I and a lower oblique step I, the lower end of the corresponding pressure transmission cylinder and the upper end of the locking sleeve are respectively provided with an upper oblique step II and a lower oblique step II, so that the pressure transmission cylinder and the locking sleeve are fixed on the support sleeve after being externally connected with the support sleeve and cannot move up and down, the pressure transmission cylinder and the locking sleeve are hermetically connected with the support sleeve after being externally connected with the support sleeve, and the end part of the pressure transmission cylinder is connected with a pipeline connector through threads in a sealing manner.

Preferably, the support sleeve is internally provided with a pressure transmitting hole, so that the hydraulic pressure in the pipeline is transmitted to a hydraulic cavity between the support sleeve and the central tube, and the hydraulic pressure in the hydraulic cavity pushes the central tube barrel to move downwards.

Preferably, the inside of the upper joint is provided with a step, and when the pipeline has no hydraulic pressure, the central pipe can not move upwards any more after moving upwards to the step position under the action of the resilience force of the spring.

Preferably, the lower joint is internally provided with a step II, when the pipeline has hydraulic pressure, the central pipe is pushed by hydraulic thrust to compress the primary spring and the secondary spring respectively, and the secondary driving rod cannot move downwards any more after moving downwards to the step position.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses can open through the hydraulic control valve plate, realize functions such as oil recovery and test, save the steel wire and throw and drag for blanking plug operating time to avoid oil well especially big inclination oil well or high viscosity viscous crude to influence the steel wire and throw and drag for the blanking plug, satisfy the requirement of oil well oil recovery production and test, can cancel the blanking plug simultaneously, control by hydraulic pressure and open, guarantee that the layering water injection effect improves workover operating efficiency.

Drawings

FIG. 1 is a closed cross-sectional view of the hydraulic control Y-shaped joint valve plate of the fishing-free blanking plug for an oil production well of the utility model;

fig. 2 is a sectional view of the valve plate opening structure of the present invention.

In the figure: 1. a three-way pipe; 2. a double male short section; 3. an upper joint; 4. a valve seat; 5. a valve plate; 6. a torsion spring; 7. a rotating shaft; 8. a fixing ring; 9. a pipeline joint; 10. a pressure transmission cylinder; 11. a locking sleeve; 12. a support sleeve; 13. a primary spring housing; 14. a secondary spring sleeve; 15. a lower joint; 16. an electric pump joint; 17. a central tube; 18. a primary drive rod; 19. a gasket; 20. a primary spring; 21. a secondary drive rod; 22. a secondary spring; 12-1, pressure transfer holes; 12-2. Hydraulic chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated.

Shown by figure 1, the utility model provides a technical scheme: the utility model provides a free of putting and dragging for blanking plug hydraulic control Y type connects for oil recovery well, its upper portion is a three-way pipe 1, be Y type structure, the upper portion production tubular column is connected to the upside, the lower extreme has two interfaces, an interface connection electric pump joint 16 and electric pump unit, another interface is from last to connecting gradually two public nipple joints 2 down, top connection 3, solid fixed ring 8, support cover 12, one-level spring housing 13, second grade spring housing 14, lower clutch 15 sub-unit connection lower part production tubular column, inside is equipped with center tube 17, one-level actuating lever 18, gasket 19, one-level spring 20, second grade actuating lever 21, second grade spring 22, it is fixed with pressure transmitting section of thick bamboo 10 and lock sleeve 11 to support the cover 12, install pipeline joint 9 on the pressure transmitting section of thick bamboo 10, gu the 8 outer ends of fixed ring are connected with disk seat 4, valve plate 5 is fixed through torsion spring 6 and pivot 7 on the disk seat 4.

The interior of the three-way pipe 1 is hermetically connected with a double male nipple 2 through threads, the interior of the double male nipple 2 is hermetically connected with an upper joint 3 through threads, the interior of the upper joint 3 is connected with a fixed ring 8 through threads, the interior of the fixed ring 8 is connected with a support sleeve 12 through threads, and a sealing ring is arranged at the thread at the lower end of the fixed ring 8, so that the fixed ring 8 is hermetically connected with the upper joint 3 and the support sleeve 12 respectively; the inside of the supporting sleeve 12 is connected with a first-level spring sleeve 13 through threads, and a sealing ring is arranged at the thread at the upper end of the first-level spring sleeve 13, so that the supporting sleeve 12 is connected with the first-level spring sleeve 13 in a sealing manner. The inside of the first-stage spring sleeve 13 is connected with a second-stage spring sleeve 14 through threads, and a sealing ring is arranged at the thread at the upper end of the second-stage spring sleeve 14, so that the second-stage spring sleeve 14 is hermetically connected with the first-stage spring sleeve 13. The inside of the second-stage spring sleeve 14 is connected with a lower joint 15 through threads, and a sealing ring is arranged at the thread at the upper end of the lower joint 15, so that the lower joint 15 is connected with the second-stage spring sleeve 14 in a sealing manner.

The inside of the fixing ring 8 is connected with the valve seat 4 through threads, and the thread at the upper end of the fixing ring 8 is provided with a sealing ring, so that the fixing ring 8 is connected with the valve seat 4 in a sealing manner. The valve seat 4 is provided with a rotating shaft 7, and a torsion spring 6 and a valve plate 5 are arranged outside the rotating shaft 7. When the valve plate 5 is rotated and spread about the center of the torsion spring 6 and the rotation shaft 7, a torque is generated to restore the valve plate 5 to the original position.

The pressure transmission cylinder 10 is internally connected with a locking sleeve 11 through threads, and a sealing ring is arranged at the thread at the upper end of the locking sleeve 11, so that the pressure transmission cylinder 10 is hermetically connected with the locking sleeve 11. The supporting sleeve 12 is provided with an upper oblique step and a lower oblique step, the lower end of the corresponding pressure transmission cylinder 10 and the upper end of the corresponding locking sleeve 11 are respectively provided with the upper oblique step and the lower oblique step, so that the pressure transmission cylinder 10 and the locking sleeve 11 are fixed on the supporting sleeve 12 after being externally connected with the supporting sleeve 12 and cannot move up and down, and meanwhile, the lower end of the pressure transmission cylinder 10 and the upper end of the locking sleeve 11 are respectively provided with a sealing ring, so that the pressure transmission cylinder 10 and the locking sleeve 11 are sealed with the supporting sleeve 12 after being externally connected with the supporting sleeve 12. The end of the pressure transmission cylinder 10 is connected with the pipeline joint 9 through thread sealing.

The support sleeve 12 is internally provided with a pressure transmission hole 12-1, so that the hydraulic pressure in the pipeline is transmitted to a hydraulic cavity 12-2 between the support sleeve 12 and the central tube 17, and the hydraulic pressure in the hydraulic cavity 12-2 pushes the central tube 17 to move downwards.

The inside of the upper joint 3 is provided with a step I, and when the pipeline has no hydraulic pressure, the central pipe 17 can not move upwards any more after moving upwards to the step position under the action of the resilience force of the spring.

The lower joint 15 is internally provided with a step II, when the pipeline has hydraulic pressure, the central pipe 17 is pushed by the hydraulic pressure to push the first-stage driving rod 18 and the second-stage driving rod 21 to respectively compress the first-stage spring 20 and the second-stage spring 22, and the second-stage driving rod 21 cannot move downwards any more after moving downwards to the step II position.

The working principle is as follows: when the three-way pipe is used, the upper side of the three-way pipe 1 is connected with an upper production pipe column, one interface at the lower end is connected with the electric pump joint 16 and the electric pump unit, and the other interface is connected with a lower production pipe column. When the pipe column is lowered, the valve plate 5 of the tool is opened until the lower position of the pipe column.

When oil extraction is carried out, hydraulic oil is injected from the hydraulic control pipeline, the central pipe 17 is pushed by hydraulic pressure to close the valve plate 5, and well liquid is lifted by the submersible electric pump on one side from the production pipe column to the well head.

When underground testing is required, hydraulic pressure in the pipeline is discharged, the valve plate 5 is opened by the central pipe 17 under the action of the resilience force of the spring, so that a testing tool can smoothly pass through the lower production pipe column, and parameters such as underground pressure, temperature and the like are tested.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In the description of the present invention, it is to be noted that the terms "mounted," "provided," "connected," and the like are to be construed broadly unless otherwise expressly specified or limited. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides an oil recovery well is with exempting from to throw and drag for blanking plug hydraulic control Y type connects, includes three-way pipe (1), is Y type structure, its characterized in that: the upper part of the three-way pipe (1) is used for being connected with an external production pipe column, two ends of the lower part of the three-way pipe (1) are respectively connected with an electric pump joint (16) and a double male short section (2), the inside of the three-way pipe (1) is hermetically connected with the double male short section (2) through threads, the inside of the double male short section (2) is hermetically connected with an upper joint (3) through threads, the inside of the upper joint (3) is connected with a fixing ring (8) through threads, the inside of the fixing ring (8) is connected with a support sleeve (12) through threads, and the fixing ring (8) is respectively and hermetically connected with the upper joint (3) and the support sleeve (12); the inner part of the support sleeve (12) is connected with a primary spring sleeve (13) through threads, and the support sleeve (12) is connected with the primary spring sleeve (13) in a sealing manner; the inner part of the primary spring sleeve (13) is connected with a secondary spring sleeve (14) through threads, and the secondary spring sleeve (14) is hermetically connected with the primary spring sleeve (13); inside threaded connection lower clutch (15) of passing through of second grade spring housing (14), sealing connection between lower clutch (15) and second grade spring housing (14) supports and is fixed with on cover (12) and passes pressure cylinder (10) and lock sleeve (11), installs pipeline joint (9) on passing pressure cylinder (10), and solid fixed ring (8) outer end is connected with disk seat (4).

2. The hydraulic control Y-shaped joint of the throwing-free blanking plug for the oil production well according to claim 1, is characterized in that: fixed ring (8) are inside through threaded connection disk seat (4), sealing connection between fixed ring (8) and disk seat (4), are equipped with pivot (7) on disk seat (4), the inside of pivot (7) is provided with center tube (17), and its externally mounted has torsion spring (6) and valve plate (5), when valve plate (5) open round the center rotation of torsion spring (6) and pivot (7), produces the moment of torsion that makes valve plate (5) resume to the original position, valve plate (5) are fixed through torsion spring (6) and pivot (7) on disk seat (4).

3. The hydraulic control Y-shaped joint of the throwing-free blanking plug for the oil production well according to claim 1, is characterized in that: pass and press a section of thick bamboo (10) inside through threaded connection lock sleeve (11), pass and press between a section of thick bamboo (10) and the lock sleeve (11) sealing connection, support and be provided with two slant steps one from top to bottom on cover (12), pass and press a section of thick bamboo (10) lower extreme and lock sleeve (11) upper end that correspond and be equipped with two slant steps two from top to bottom respectively, make and pass and press a section of thick bamboo (10) and lock sleeve (11) to fix on supporting cover (12) after supporting cover (12) external connection, can not reciprocate, pass and press a section of thick bamboo (10) and lock sleeve (11) and support cover (12) sealing connection after supporting cover (12) external connection, pass through thread sealing connection pipeline joint (9) in a section of thick bamboo (10) tip.

4. The hydraulic control Y-shaped joint of the throwing-free blanking plug for the oil production well according to claim 2, characterized in that: and a pressure transmission hole (12-1) is formed in the support sleeve (12), so that hydraulic pressure in a pipeline is transmitted to a hydraulic cavity (12-2) between the support sleeve (12) and the central tube (17), and the hydraulic pressure in the hydraulic cavity (12-2) pushes the central tube (17) to move downwards.

5. The hydraulic control Y-shaped joint of the throwing-free blanking plug for the oil production well according to claim 2, characterized in that: the inner part of the upper joint (3) is provided with a step I, and when a pipeline has no hydraulic pressure, the central pipe (17) can not move upwards any more after moving upwards to a step position under the action of the resilience force of the spring.

6. The hydraulic control Y-shaped joint of the dropping-free blanking plug for the oil recovery well according to claim 2, characterized in that: the lower joint (15) is internally provided with a step II, when a pipeline has hydraulic pressure, the central pipe (17) is pushed by hydraulic thrust to compress the primary spring (20) and the secondary spring (22) respectively by the primary driving rod (18) and the secondary driving rod (21), and the secondary driving rod (21) cannot move downwards any more after moving downwards to a step position.