Anti-jacking device for steel wire operation of gas well

By introducing buffer springs and forced reset mechanisms into gas well wire operation tools, the problem of existing tool anchoring depends on pressure elimination in the well is solved, and the continuity and efficiency of operations are improved.

CN223164509UActive Publication Date: 2025-07-29PETROCHINA CO LTD
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Patent Information

Application Number
CN202422573327.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-07-29
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

The anti-top tool in existing gas well wire operations lacks buffer spring and forced reset functions, resulting in the retraction of the caulking after anchoring and relies on the pressure elimination of the inside well, affecting the operation efficiency and quality.

Method used

An anti-top device including an upper joint, a middle sleeve, a lower joint and a tile is designed. Using a buffer spring and a forced reset mechanism, the automatic anchoring and unansing of the tool is achieved through the compression and reset of the spring to ensure the continuity of the work.

Benefits of technology

Automatic anchoring and unanswering when pressure changes in the well are achieved, improving the efficiency and quality of gas well wire operations, and avoiding additional downtime and maintenance operations.

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Abstract

The utility model discloses an anti-jacking device for gas well steel wire operation, which comprises an upper joint, one end of the upper joint is connected with a middle sleeve, a spring is arranged in the middle sleeve, the end part, far away from the upper joint, of the middle sleeve is connected with a lower joint, and the end part, close to the middle sleeve, of the lower joint is connected with a plurality of slip pieces in a dovetail groove manner; the slip pieces are arranged at the connecting position of the middle sleeve and the lower connector, one side of each slip piece makes contact with the outer wall of the middle sleeve, and a hoop spring is connected between the slip pieces in a sleeved mode. The utility model solves the problems that the anti-jacking tool in the prior art has no buffer spring and no forced reset function, and the retraction condition of the slip after channeling anchoring is limited by the pressure elimination condition in a well, so that the working efficiency and quality are influenced.
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