CN215761609U - Pressure tapping and air discharging device for hydraulic control pipeline - Google Patents
Pressure tapping and air discharging device for hydraulic control pipeline Download PDFInfo
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- CN215761609U CN215761609U CN202120774529.4U CN202120774529U CN215761609U CN 215761609 U CN215761609 U CN 215761609U CN 202120774529 U CN202120774529 U CN 202120774529U CN 215761609 U CN215761609 U CN 215761609U
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Abstract
The utility model relates to a pressure tapping and air-releasing device for a liquid control pipeline, which comprises an upper joint and a lower joint in threaded connection with the upper joint, wherein an inner cylinder is arranged in a cavity communicated with the lower joint, a cylindrical sliding cavity is arranged among the inner cylinder, the upper joint and the lower joint, a cylindrical piston is arranged in the sliding cavity, a compression amount cavity is arranged on one side of the sliding cavity, which is far away from the upper joint, a plurality of first through holes are uniformly distributed on the lower joint in the circumference, second through holes which correspond to the first through holes one by one are arranged on the inner cylinder, and a plurality of third through holes matched with the first through holes are arranged on the piston. The hydraulic control sliding sleeve is simple in structure, the total length is far smaller than that of a hydraulic control sliding sleeve, and when the well deviation is too large, the problem that the tool is too long to go into the well is solved; the utility model is an underground tool which does not need auxiliary operation and can be controlled on the ground, and the operation is simple, quick and effective; compared with a hydraulic control sliding sleeve, the hydraulic control sliding sleeve can achieve the same aim, and is lower in manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of auxiliary tools for killing operations, in particular to a pressure tapping and air discharging device for a hydraulic control pipeline.
Background
At present, in well repair operation, in order to facilitate completion of well killing operation and cleaning of crude oil in a pipe, a circulation channel is generally required to be established, and the inside and outside communication operation of a pipe column is realized. The hydraulic control sliding sleeve of the existing underground tapping device can avoid the defects of a mechanical sliding sleeve and an oil drain valve, but the hydraulic control sliding sleeve is high in manufacturing cost and has certain influence on cost control. In addition, the existing underground perforating device is too large in length, and when the well is too large in inclination, the perforating device is difficult to enter the underground, so that time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a hydraulic control pipeline pressure tapping and air discharging device which is simple in structure, easy to operate, convenient to install and capable of easily tapping.
In order to achieve the purpose, the utility model adopts the following technical scheme: a liquid control pipeline pressure tapping and air discharging device comprises an upper connector and a lower connector in threaded connection with the upper connector, wherein an inner cylinder is arranged in a cavity communicated with the upper connector and the lower connector, one end of the inner cylinder is in threaded connection with the upper connector, the other end of the inner cylinder is inserted into the lower connector, a cylindrical sliding cavity is arranged among the inner cylinder, the upper connector and the lower connector, a cylindrical piston is arranged in the sliding cavity, a plurality of first sealing rings are arranged on the outer side wall and the inner side wall of the piston, a compression amount cavity is arranged on one side, away from the upper connector, of the sliding cavity and is positioned between the inner cylinder and the lower connector, the compression amount cavity is communicated with the sliding cavity, a plurality of first conduction holes which are circumferentially and uniformly distributed are arranged on the lower connector, a second conduction hole which corresponds to the first conduction hole one by one is arranged on the inner cylinder, and a plurality of third conduction holes matched with the first conduction holes are arranged on the piston; when the inner cylinder is not communicated with the outside, the piston is positioned on one side of the sliding cavity close to the upper connector, the third through hole is positioned between the first through hole and the upper connector, a plurality of shear pins are connected between the piston and the lower connector, and the matching position of the piston and the lower connector is positioned through the shear pins;
when the inner cylinder is communicated with the outside, the piston is positioned on one side of the sliding cavity far away from the upper joint, and the first through hole, the second through hole and the third through hole are aligned; install cutting ferrule on the top connection and connect, dog and No. two dogs, cutting ferrule connects and is located between dog and No. two dogs, and cutting ferrule even has oil pipe on connecting, is equipped with the oily passageway of mistake that is used for smooth chamber and outside intercommunication on the top connection, and oil pipe's one end is through oily passageway and smooth chamber intercommunication, and the other end passes behind the dog and is connected with outside hydraulic pump. The joint of the upper joint and the inner cylinder is provided with a plurality of second sealing rings.
And a plurality of third sealing rings are arranged at the joint of the upper joint and the lower joint.
The splicing part of the lower joint and the inner cylinder is provided with a plurality of No. four sealing rings.
And annular steps used for clamping the inner barrel are arranged in the upper joint and the lower joint.
The number of the first through holes is 4.
The outer side wall of the upper joint is provided with a fixing groove, and the cutting sleeve joint is positioned in the fixing groove.
The utility model has the beneficial effects that: the hydraulic control sliding sleeve is simple in structure, the total length is far smaller than that of a hydraulic control sliding sleeve, and when the well deviation is too large, the problem that the tool is too long to go into the well is solved; the utility model is an underground tool which does not need auxiliary operation and can be controlled on the ground, and the operation is simple, quick and effective; compared with a hydraulic control sliding sleeve, the hydraulic control sliding sleeve can achieve the same aim, and is lower in manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is an enlarged view of B in FIG. 2;
in the figure: 1-upper joint; 2-lower joint; 3-inner cylinder; 4-a slide cavity; 5-a piston; 6-a sealing ring; 7-a compression volume chamber; 8-a via hole; 9-second via hole; 10-third via hole; 11-shear pins; 12-a ferrule fitting; 13-oil pipe; 14-a first stop block; no. 15-second stop block; 16-second sealing ring; 17-seal ring III; 18-four sealing ring; 19-fixing the groove;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 4, a hydraulic control pipeline pressure tapping and air releasing device comprises an upper joint 1 and a lower joint 2 in threaded connection with the upper joint 1, an inner cylinder 3 is arranged in a cavity communicated with the upper joint 1 and the lower joint 2, one end of the inner cylinder 3 is in threaded connection with the upper joint 1, the other end of the inner cylinder is inserted in the lower joint 2, a cylindrical sliding cavity 4 is arranged between the inner cylinder 3, the upper joint 1 and the lower joint 2, a cylindrical piston 5 is arranged in the sliding cavity 4, a plurality of first sealing rings 6 are arranged on the outer side wall and the inner side wall of the piston 5, a compression amount cavity 7 is arranged on one side of the sliding cavity 4 far away from the upper joint 1, and the compression amount cavity 7 is arranged between the inner cylinder 3 and the lower joint 2, the compression cavity 7 is communicated with the sliding cavity 4, the lower joint 2 is provided with a plurality of first through holes 8 which are uniformly distributed on the circumference, the inner cylinder 3 is provided with second through holes 9 which are in one-to-one correspondence with the first through holes 8, and the piston 5 is provided with a plurality of third through holes 10 which are matched with the first through holes 8; when the inner cylinder 3 is not communicated with the outside, the piston 5 is positioned on one side of the sliding cavity 4 close to the upper connector 1, the third through hole 10 is positioned between the first through hole 8 and the upper connector 1, a plurality of shear pins 11 are connected between the piston 5 and the lower connector 2, and the matching position of the piston 5 and the lower connector 2 is positioned through the shear pins 11;
when the inner cylinder 3 is communicated with the outside, the piston 5 is positioned on one side of the sliding cavity 4 far away from the upper connector 1, and the first through hole 8, the second through hole 9 and the third through hole 10 are aligned; the compression amount cavity 7 can contain air compressed by the movement of the piston 5 along the sliding cavity 4, and one side of the piston 5 facing the lower connector 2 can be attached to one side of the sliding cavity 4 facing the compression amount cavity 7, so that the alignment accuracy of the first through hole 8, the second through hole 9 and the third through hole 10 is improved; install cutting ferrule joint 12, dog 14 and No. two dogs 15 on the top connection 1, cutting ferrule joint 12 is located No. one dog 14 and No. two dogs 15, even has oil pipe 13 on cutting ferrule joint 12, is equipped with the oily passageway of crossing that is used for smooth chamber 4 and outside intercommunication on the top connection 1, and oil pipe 13's one end is through crossing oily passageway and smooth chamber 4 intercommunication, and the other end passes behind dog 14 and is connected with outside hydraulic pump. A plurality of second sealing rings 16 are arranged at the joint of the upper joint 1 and the inner cylinder 3.
And a plurality of third sealing rings 17 are arranged at the joint of the upper joint 1 and the lower joint 2.
A plurality of No. four sealing rings 18 are arranged at the splicing part of the lower joint 2 and the inner cylinder 3.
Annular steps used for clamping the inner barrel 3 are arranged in the upper joint 1 and the lower joint 2.
The number of the first via holes 8 is 4.
The outer side wall of the upper joint 1 is provided with a fixing groove 19, and the cutting ferrule joint 12 is positioned in the fixing groove 19.
When the hydraulic control pipeline pressure tapping air release device works, under the normal condition, the hydraulic control pipeline pressure tapping air release device is in a closed state, namely the piston 5 is positioned on one side of the sliding cavity 4 close to the upper joint 1; when the well needs to be washed and killing, ground supercharging equipment (a hydraulic pump) is connected with the utility model through an oil pipe 13, the output pressure of the ground supercharging equipment is transmitted into the sliding cavity 4, so that the piston 5 is pushed to move towards one side of the lower joint 2, the pressure shears the shear pin 11, and the first through hole 8, the second through hole 9 and the third through hole 10 are aligned, and the requirement of internal and external communication is met. The utility model is suitable for Y-shaped tubular columns and combined production tubular columns of oil wells. The hydraulic control sliding sleeve is simple in structure, the total length is far smaller than that of a hydraulic control sliding sleeve, and when the well deviation is too large, the problem that the tool is too long to go into the well is solved; the utility model is an underground tool which does not need auxiliary operation and can be controlled on the ground, and the operation is simple, quick and effective; compared with a hydraulic control sliding sleeve, the hydraulic control sliding sleeve can achieve the same aim, and is lower in manufacturing cost.
The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.
Claims (7)
1. A hydraulic control pipeline pressure tapping and air discharging device comprises an upper connector (1) and a lower connector (2) in threaded connection with the upper connector (1), and is characterized in that an inner cylinder (3) is arranged in a cavity communicated with the upper connector (1) and the lower connector (2), one end of the inner cylinder (3) is in threaded connection with the upper connector (1), the other end of the inner cylinder is inserted in the lower connector (2), a cylindrical sliding cavity (4) is arranged between the inner cylinder (3), the upper connector (1) and the lower connector (2), a cylindrical piston (5) is arranged in the sliding cavity (4), a plurality of sealing rings (6) are respectively arranged on the outer side wall and the inner side wall of the piston (5), a compression amount cavity (7) is arranged on one side, far away from the upper connector (1), of the sliding cavity (4), the compression amount cavity (7) is positioned between the inner cylinder (3) and the lower connector (2), the compression amount cavity (7) is communicated with the sliding cavity (4), and a plurality of conducting holes (8) which are uniformly distributed on the circumference are arranged on the lower connector (2), the inner cylinder (3) is provided with a second through hole (9) which is in one-to-one correspondence with the first through hole (8), and the piston (5) is provided with a plurality of third through holes (10) which are matched with the first through hole (8); when the inner cylinder (3) is not communicated with the outside, the piston (5) is positioned on one side of the sliding cavity (4) close to the upper connector (1), the third through hole (10) is positioned between the first through hole (8) and the upper connector (1), a plurality of shear pins (11) are connected between the piston (5) and the lower connector (2), and the matching position of the piston (5) and the lower connector (2) is positioned through the shear pins (11);
when the inner cylinder (3) is communicated with the outside, the piston (5) is positioned on one side of the sliding cavity (4) far away from the upper connector (1), and the first through hole (8), the second through hole (9) and the third through hole (10) are aligned; install cutting ferrule on top connection (1) and connect (12), dog (14) and No. two dog (15), cutting ferrule connects (12) and is located between dog (14) and No. two dog (15), even has oil pipe (13) on cutting ferrule connects (12), be equipped with the oily passageway of crossing that is used for smooth chamber (4) and outside intercommunication on top connection (1), the one end of oil pipe (13) is through crossing oily passageway and smooth chamber (4) intercommunication, the other end passes behind dog (14) and external hydraulic pump connection.
2. The pressure tapping and air releasing device for the pilot-controlled pipeline as claimed in claim 1, wherein a plurality of second sealing rings (16) are arranged at the joint of the upper joint (1) and the inner cylinder (3).
3. The pressure tapping and air releasing device for the pilot-controlled pipeline as claimed in claim 1, wherein a plurality of third sealing rings (17) are arranged at the joint of the upper joint (1) and the lower joint (2).
4. The pressure tapping and air releasing device for the pilot-controlled pipeline as claimed in claim 1, wherein a plurality of four-size sealing rings (18) are arranged at the splicing part of the lower joint (2) and the inner cylinder (3).
5. The pressure tapping and air releasing device of the hydraulic control pipeline as claimed in claim 1, wherein the upper joint (1) and the lower joint (2) are provided with annular steps for clamping the inner cylinder (3).
6. The pilot-controlled line pressure tapping venting device according to claim 1, wherein the number of the first through holes (8) is 4.
7. The pressure tapping and air releasing device for the pilot-controlled pipeline as claimed in claim 1, wherein the outer side wall of the upper joint (1) is provided with a fixing groove (19), and the ferrule joint (12) is positioned in the fixing groove (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120774529.4U CN215761609U (en) | 2021-04-16 | 2021-04-16 | Pressure tapping and air discharging device for hydraulic control pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120774529.4U CN215761609U (en) | 2021-04-16 | 2021-04-16 | Pressure tapping and air discharging device for hydraulic control pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761609U true CN215761609U (en) | 2022-02-08 |
Family
ID=80095205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120774529.4U Active CN215761609U (en) | 2021-04-16 | 2021-04-16 | Pressure tapping and air discharging device for hydraulic control pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761609U (en) |
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2021
- 2021-04-16 CN CN202120774529.4U patent/CN215761609U/en active Active
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