LWD resistivity logging instrument
CN224314973UActive Publication Date: 2026-06-02GUOYI QINGNENG TECH (CHONGQING) CO LTD
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Patent Information
- Application Number
- CN202521497928.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-02
- Estimated Expiration
- 2035-07-16
AI Technical Summary
Technical Problem
Existing logging-while-drilling resistivity instruments have poor structural reliability and unsatisfactory downhole vibration resistance.
Method used
The drill collar adopts an integrated body design, and the upper and lower transition flow channel modules are sealed together with the main control circuit module to form a complete internal mud flow channel. An independent wiring channel is set up to facilitate conductive connection and prevent mud from flowing into electronic components.
Benefits of technology
It improves the structural reliability and downhole shock resistance of the instrument, ensures that electronic components are not damaged, and facilitates the assembly and connection of external instruments.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224314973U_ABST
Abstract
This utility model discloses a logging-while-drilling resistivity instrument, wherein the drill collar body has a central mud channel, a first wiring channel, and a second wiring channel; the main control circuit module is located on the upper side of the drill collar body and outside the central mud channel; the lower end of the upper transition channel module is detachably and sealedly connected to the upper end of the drill collar body, and has an upper mud channel and an upper wiring channel; the upper mud channel is connected to the central mud channel; the lower end of the upper wiring channel is connected to the first wiring channel to arrange a first wiring assembly; the upper end of the lower transition channel module is detachably connected to the lower end of the drill collar body, and has a lower mud channel and a lower wiring channel; the lower mud channel is connected to the central mud channel; the upper end of the lower wiring channel is connected to the second wiring channel to arrange a second wiring assembly. This utility model has high structural reliability, good seismic resistance, convenient assembly and wiring, and can easily connect to external instruments.
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