Ring bush fisher capable of repeatedly fishing and releasing

By designing a repetitive salvage and releasing ring tile salvage, the combination of the reversing sleeve and the positioning sleeve can achieve the relocation of ring tile, which solves the problem of unstable reuse and release of existing drilling tools, and improves operating efficiency.

CN222668153UActive Publication Date: 2025-03-25RENQIU NORTH CHINA SANUO PETROLEUM TECH CO LTD
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Patent Information

Application Number
CN202421617284.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-03-25
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

Existing releaseable drilling tools, especially three-ball salvagers and cava salvagers, have problems such as ineffective reuse, inaccurate release of tension, vulnerability to damage and low operating efficiency.

Method used

A repetitive salvage and release ring tile salvage is designed. By setting a reversing sleeve, guide sleeve and positioning sleeve between the core cylinder and the outer cylinder, the up and down movement and rotation of the core cylinder are realized, and the spacing between the ring tile and the guide shoe is switched, thereby realizing the reversal of the ring tile and achieving the purpose of repeatable salvage and release.

Benefits of technology

The reusable use of the ring tile salvage is achieved, which improves the stability and accuracy of release, avoids tool damage, and improves the efficiency of drilling operations.

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Abstract

The utility model discloses an annular tile fisher capable of salvaging and releasing repeatedly, which comprises an outer cylinder and a core cylinder, an annular tile is arranged at the bottom of the core cylinder, a guide shoe matched with the annular tile is arranged at the bottom of the outer cylinder, the core cylinder is arranged in the outer cylinder in an up-and-down moving manner, a reversing sleeve is rotatably sleeved in the middle of the core cylinder, and the reversing sleeve is sleeved in the middle of the core cylinder. And a guide sleeve and a positioning sleeve are respectively arranged on the upper side and the lower side of the reversing sleeve in the outer cylinder. Through the matching of the reversing sleeve, the positioning sleeve and the guide sleeve, the core cylinder can rotate relative to the outer cylinder while moving up and down relative to the outer cylinder, and the top claw can be switched in the matching of the deep positioning groove and the shallow positioning groove, so that the distance between the ring tile and the guide shoe can be switched, and the matching state of the ring tile and the guide shoe can be changed; the ring tile position changing can be achieved only through lifting and lowering, and repeated fishing and releasing can be achieved.
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