Single bus communication system and testing method for a measurement while drilling instrument

The single-bus communication system solved the problem of inconsistent communication interfaces among different components in the drilling measurement instrument, realizing a unified test interface and efficient data transmission, thereby improving construction efficiency and instrument management.

CN122120055APending Publication Date: 2026-05-29CNPC BOHAI DRILLING ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CNPC BOHAI DRILLING ENG
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The communication interfaces of different components in existing measurement-while-drilling instruments are inconsistent, which requires the replacement of different ground testing equipment, making the operation cumbersome and reducing construction efficiency.

Method used

A single-bus communication system is adopted, in which resistivity tools, probes, power supply shorts and gamma shorts are connected in series on a single bus through the main control chip and multiple communication modules, unifying the test interface, and using multi-channel drive receivers and buffers to realize data transmission and verification of different components.

Benefits of technology

It enables simultaneous testing and verification of different components, improving work efficiency, reducing operational errors and instrument damage, and simplifying instrument management.

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Abstract

The application discloses a single bus communication system of a measurement while drilling instrument and a testing method. The single bus communication system comprises a single bus, a master control chip, a first communication module, a second communication module, a third communication module, a resistivity tool, a probe pipe, a power short section, a gamma short section, a first testing device and a second testing device. The first communication module, the second communication module and the third communication module are connected to the single bus. The master control chip is connected with the first communication module, the second communication module and the third communication module. The first testing device is used for testing the resistivity tool. The second testing device is used for testing at least one of the probe pipe, the power short section and the gamma short section. The master control chip is used for listening to the data returned on the single bus and controlling the first communication module and / or the second communication module. The testing interface of the communication system disclosed by the application is unified, has the functions of testing and checking different communication interface components in the measurement while drilling instrument, and has great practical significance.
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