CN219262330U - Fishing device for underground tester - Google Patents

Abstract

The utility model discloses a salvaging device of an underground tester, which belongs to the technical field of overshot and comprises a compression joint; one end of the connecting cylinder is fixedly butted with one end of the compression joint; one end of the connecting rod is inserted into the connecting cylinder from the other end of the connecting cylinder and is fixed with the connecting cylinder, and the side wall of the connecting rod is provided with a sliding groove extending along the axial direction of the connecting rod; wherein, the side wall of the chute is provided with a clamping groove; one end of the clamping piece is provided with a clamping block which can be clamped into the clamping groove; the clamping block is provided with a sliding part which is in sliding fit with the chute, and one side of the clamping block opposite to the bottom surface of the chute is an arc surface; one end of the clamping cylinder is fixedly connected with the other end of the clamping piece; one end of the overshot is fixedly connected with the other end of the clamping cylinder. The utility model is convenient to detach and install, is simpler to operate and convenient to use, and the clamping block and the clamping groove are clamped so that the connection has certain stability.

Description

Fishing device for underground tester

Technical Field

The utility model relates to the technical field of overshot, in particular to a fishing device of an underground tester.

Background

The fisher is mainly used in the oil extraction test industry. When the testing instrument or the testing tool is plugged, the steel wire is pulled out of the well or an RTTS safety joint is used.

After the testing instrument is placed in a certain depth of an oil, gas and water well for testing, the RTTS safety joint is an optional emergency releasing tool. When the packer is clamped in the operation engineering, the safety joint can lift the tool and the working string on the packer, and a special fishing tool is needed to be used for fishing the test instrument or the tool.

In the prior art, the quick-release latch jack disclosed in Chinese patent (publication No. CN 201428409Y) comprises a compression spring, a latch barrel, a clamping tile and a compression joint, wherein the latch barrel is internally connected with the compression spring and the latch blade through the compression joint, the lower end of the compression spring is connected with a hanging sliding block, the hanging sliding block is radially provided with a pin hole which is matched with a sliding groove of the latch barrel, and a sliding rod is inserted into the pin hole to slide along the sliding groove of the latch barrel; the lower end of the hanging sliding block is hung with two clamping tiles. After the salvaging of the salvaging device, the separation of the testing tool and the salvaging device can be realized at high altitude, so that the occurrence of safety accidents is avoided, and the salvaging device is a common salvaging device at present, but the salvaging device is complex to operate and is relatively troublesome to disassemble and install when in use, wherein the connection stability of the compression joint and the salvaging barrel is relatively poor, and the compression joint is easy to forcedly separate in the process of moving to the top and cannot be used well.

Disclosure of Invention

The utility model aims at: the underground tester salvaging device is convenient to detach and install.

The utility model is realized by the following technical scheme:

a downhole tester fishing device, comprising:

compressing the joint;

one end of the connecting cylinder is fixedly butted with one end of the compression joint;

one end of the connecting rod is inserted into the connecting cylinder from the other end of the connecting cylinder and is fixed with the connecting cylinder, and the side wall of the connecting rod is provided with a sliding groove extending along the axial direction of the connecting rod; wherein, the side wall of the chute is provided with a clamping groove;

one end of the clamping piece is provided with a clamping block which can be clamped into the clamping groove; the clamping block is provided with a sliding part which is in sliding fit with the chute, and one side of the clamping block opposite to the bottom surface of the chute is an arc surface;

one end of the clamping cylinder is fixedly connected with the other end of the clamping piece;

one end of the overshot is fixedly connected with the other end of the clamping cylinder.

Further comprises:

the first elastic piece is arranged outside the clamping piece, one end of the first elastic piece is propped against the end face of the end, fixedly connected with the clamping piece, of the clamping barrel, and the first elastic piece can be inserted into the connecting barrel.

The first elastic piece is a spring.

Further comprises:

the mounting groove is arranged on the inner side wall of the connecting cylinder;

the limiting block is arranged in the mounting groove;

the second elastic piece is arranged between the bottom surface of the mounting groove and the limiting block;

the limiting groove is arranged at a position of the outer side wall of the clamping cylinder corresponding to the mounting groove.

The second elastic piece is a spring.

The other end of the compression joint is in a truncated cone shape.

Compared with the prior art, the utility model has the following beneficial technical effects:

according to the utility model, under the cooperation of the connecting cylinder, the clamping block and the connecting rod, when the compression joint and the overshot are installed, the overshot is moved towards the direction of the connecting cylinder, so that the connecting rod is inserted into the clamping cylinder towards the end of the clamping cylinder, meanwhile, the clamping block slides towards the direction of the connecting cylinder in the sliding groove, when the clamping block slides in place towards the direction of the connecting cylinder in the sliding groove, the clamping cylinder is rotated, the clamping block is rotated into the clamping groove to be clamped with the connecting rod, and at the moment, the clamping cylinder is stably installed, so that the overshot and the compression joint are fixed, and the fixed connection between the overshot and the compression joint is completed. Therefore, the utility model is convenient to detach and install, is simpler to operate and is convenient to use, and the clamping block and the clamping groove are clamped so that the connection has certain stability.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of a connection part between a connecting cylinder and a clamping cylinder in the utility model;

FIG. 3 is a schematic diagram of an explosion structure of a connecting rod and a clamping block in the utility model;

fig. 4 is a schematic diagram of an explosion structure at the joint of the connecting cylinder and the limiting block in the utility model.

The meaning of the reference numerals is as follows:

1. overshot; 2. compressing the joint; 3. a connecting cylinder; 301. a mounting groove; 4. a connecting rod; 401. a clamping groove; 402. a chute; 5. a clamping cylinder; 501. a limit groove; 6. a first elastic member; 7. a clamping block; 8. a second elastic member; 9. and a limiting block.

Detailed Description

All the features disclosed in this specification, or the steps of all methods or processes disclosed, except for the mutually exclusive features and/or steps, may be combined in any combination, unless specifically stated otherwise, with other equivalents or alternatives having a similar purpose, i.e., each feature is one embodiment of a series of equivalents or similar features, unless specifically stated otherwise.

Example 1

Referring to fig. 1-4, the utility model relates to a fishing device for a downhole tester, which comprises an overshot 1, a compression joint 2, a connecting cylinder 3, a connecting rod 4, a clamping cylinder 5, a clamping piece, a clamping block 7, a clamping groove 401 and a sliding groove 402.

The compression joint 2 is cylindrical.

The connecting cylinder 3 is cylindrical, and one end of the connecting cylinder is fixedly butted with one end of the compression joint 2, for example, by welding.

One end of the connecting rod 4 is inserted into the connecting cylinder 3 from the other end of the connecting cylinder 3 and is fixed with the connecting cylinder 3, the side wall of the connecting rod 4 is provided with a chute 402 extending along the axial direction of the connecting rod, and the side wall of the chute 402 is provided with a clamping groove 401.

One end of the clamping piece is provided with a clamping block 7 which can be clamped into the clamping groove 401, one side of the clamping block 7 opposite to the bottom surface of the sliding groove 402 is an arc surface, the clamping block 7 can conveniently rotate into the clamping groove 401, and the clamping block 7 is provided with a sliding part which is in sliding fit with the sliding groove 402.

One end of the clamping cylinder 5 is fixedly connected with the other end of the clamping piece.

One end of the overshot 1 is fixedly connected with the other end of the clamping cylinder 5.

Example 2

Referring to fig. 2 and 3, the present utility model further includes a first elastic member 6. The first elastic member 6 is disposed outside the clamping member, one end of the first elastic member abuts against the end surface of the end, fixedly connected with the clamping member, of the clamping cylinder 5, and the first elastic member can be inserted into the connecting cylinder 3. In the embodiment shown in fig. 2 and 3, the first elastic member 6 is a spring, and is sleeved outside the clamping member.

In the process that the clamping block 7 slides in the direction of the connecting cylinder 3 in the sliding groove 402, when the first elastic piece 6 contacts with the inside of the connecting cylinder 3, the clamping block 7 slides in the direction of the connecting cylinder 3 in the sliding groove 402, and at the moment, the clamping cylinder 5 is rotated, so that the clamping block 7 is rotated into the clamping groove 401 to be clamped with the connecting rod 4. The first elastic member 6 protects the connecting cylinder 3 from damaging the connecting cylinder 3 during the connecting process.

Example 3

Referring to fig. 2-4, the utility model further comprises a second elastic member 8, a limiting block 9, a mounting groove 301 and a limiting groove 501.

The mounting groove 301 is provided in the inner side wall of the connecting cylinder 3.

The stopper 9 is disposed in the mounting groove 301.

The second elastic member 8 is disposed between the bottom surface of the mounting groove 301 and the stopper 9. In the embodiment represented in fig. 4, the second elastic element 8 is a spring.

The limiting groove 501 is provided on the outer side wall of the cartridge 5 at a position corresponding to the mounting groove 301.

Under the cooperation of the second elastic piece 8 and the limiting block 7, when the clamping block 7 is clamped into the clamping groove 401 on the connecting rod 4, the limiting block 9 is sprung away from one side of the bottom surface of the mounting groove 301 under the action of the second elastic piece 8, so that the limiting block 9 enters the limiting groove 501, the clamping cylinder 5 and the connecting cylinder 3 are limited, the stability of connection between the clamping cylinder 5 and the connecting cylinder 3 is further improved, and the stability of connection between the overshot 1 and the compression joint 2 is further improved.

Example 4

Referring to fig. 1, the other end of the compression joint 2 is shaped like a truncated cone.

The working process of the utility model is as follows:

as shown in fig. 1, 2, 3 and 4, when the device is used, the compression joint 2 and the overshot 1 are installed, the overshot 1 is moved towards the direction of the connecting cylinder 3, the connecting rod 4 is inserted into the clamping cylinder 5 towards the end of the clamping cylinder 5, meanwhile, the clamping block 7 slides towards the direction of the connecting cylinder 3 in the sliding groove 402, when the first elastic piece 6 is in contact with the inside of the connecting cylinder 3, the clamping cylinder 5 is rotated, the clamping block 7 is rotated into the clamping groove 401 to be clamped with the connecting rod 4, so that the clamping cylinder 5 is connected with the connecting cylinder 3, the clamping cylinder 5 is stably installed at the moment, and the fixed connection between the overshot 1 and the compression joint 2 is completed. When fixture block 7 card goes into in draw-in groove 401 of connecting rod 4, under the effect of second elastic component 8 this moment, with stopper 9 to one side bullet open of keeping away from mounting groove 301 bottom surface, make stopper 9 get into in the spacing groove 501, carry out spacing to card section of thick bamboo 5 and connecting cylinder 3, further increase the stability of being connected between card section of thick bamboo 5 and the connecting cylinder 3 to increase the stability of being connected between overshot 1 and the compression joint 2. And when the detachable type anti-theft lock is detached, the reverse action is performed.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. A downhole tester fishing device, comprising:

compressing the joint;

one end of the connecting cylinder is fixedly butted with one end of the compression joint;

one end of the connecting rod is inserted into the connecting cylinder from the other end of the connecting cylinder and is fixed with the connecting cylinder, and the side wall of the connecting rod is provided with a sliding groove extending along the axial direction of the connecting rod; wherein, the side wall of the chute is provided with a clamping groove;

one end of the clamping piece is provided with a clamping block which can be clamped into the clamping groove; the clamping block is provided with a sliding part which is in sliding fit with the chute, and one side of the clamping block opposite to the bottom surface of the chute is an arc surface;

one end of the clamping cylinder is fixedly connected with the other end of the clamping piece;

one end of the overshot is fixedly connected with the other end of the clamping cylinder.

2. The downhole tester fishing apparatus of claim 1, further comprising:

the first elastic piece is arranged outside the clamping piece, one end of the first elastic piece is propped against the end face of the end, fixedly connected with the clamping piece, of the clamping barrel, and the first elastic piece can be inserted into the connecting barrel.

3. The downhole tester fishing apparatus of claim 2, wherein the first resilient member is a spring.

4. The downhole tester fishing apparatus of claim 1, further comprising:

the mounting groove is arranged on the inner side wall of the connecting cylinder;

the limiting block is arranged in the mounting groove;

the second elastic piece is arranged between the bottom surface of the mounting groove and the limiting block;

the limiting groove is arranged at a position of the outer side wall of the clamping cylinder corresponding to the mounting groove.

5. The downhole tester fishing apparatus of claim 4, wherein the second resilient member is a spring.

6. The downhole tester fishing apparatus of any one of claims 1-5 wherein the other end of the compression joint is frustoconical in shape.

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