A whipstock leak prevention device

By designing a hydraulically driven multi-layer sealing ring structure, particles on the sealing surface of the guide vane leak prevention device are cleaned, solving the problem of particles getting stuck between the seal and the inner wall of the casing, achieving a highly efficient sealing effect, and preventing well leakage and stuck drill accidents.

CN224550023UActive Publication Date: 2026-07-24HUAIAN JINGSHEN DRILLING TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN JINGSHEN DRILLING TOOLS CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing guide vane leak prevention devices, large-diameter particles can easily get stuck between the seal and the inner wall of the sleeve during the process of the seal fitting tightly against the inner wall of the sleeve, resulting in poor sealing performance.

Method used

A leak-proof device for the guide vane was designed. The piston block and the movable block are driven by a hydraulic system. The multi-layer sealing ring fits against the inner wall of the casing, cleans the particles on the sealing surface, and ensures that the sealing ring fits tightly against the casing to prevent gaps from forming.

Benefits of technology

It effectively cleans particles on the sealing surface, ensures sealing effect, prevents well leakage and stuck drill accidents, and improves the cleanliness of the contact surface between the seal and the casing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of deflector leakage-proof devices, belong to deflector sealing technical field, a kind of deflector leakage-proof device, including stem, the inside of stem is provided with installation groove, the inside bottom of installation groove is fixed with piston cylinder, the outside bottom of piston cylinder is provided with through slot, the inside sliding connection of through slot has piston block, spring is abutted between the piston block and piston cylinder, the inside of stem is fixed with hydraulic pipe, the inside of stem is also fixed with sleeve, the inside sliding connection of sleeve has sleeve rod.The utility model can clean up sealing and sleeve contact surface, avoid sealing and sleeve contact surface exist larger size particle, to solve the problem that larger diameter particle is easily stuck between sealing element and sleeve inner wall in the process that sealing element and sleeve inner wall are close, cause sealing element and sleeve inner wall produce gap, thereby affect sealing effect.
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