GROUND-TO-DOWNHOLE COMMUNICATION METHOD AND SYSTEM

WIPO Patent Application WO/2023/137795

A1

The present invention relates to the technical field of the drilling industry. Disclosed are a ground-to-downhole communication method and system. The system comprises: a ground instruction mechanism, a control mechanism, a downhole system, a response module and a feedback module, wherein the ground instruction mechanism is used for sending an instruction; the control mechanism is used for controlling, according to the instruction of the ground instruction mechanism, a drill rod to transmit the instruction to the downhole system by means of a change in the state of the drill rod; the downhole system is used for detecting the change in the state of the drill rod so as to receive the instruction, and sending the instruction to the response module; the response module is used for performing a response operation according to the instruction; and the feedback module is used for feeding a response result back to the ground instruction mechanism. By means of the ground-to-downhole communication method and system provided in the present invention, a drill rod is controlled to transmit an instruction to a downhole system by means of a change in the state of the drill rod. The present invention has the advantages of being simple, reliable and safe, occupying little space, having few fault points, being economical, etc.

TAN YAN RU (CN)
TAN JIA MENG (CN)
TAN JIA LE (CN)

PCT/CN2022/074743

July 27, 2023

January 28, 2022

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TAN YAN RU (CN)

E21B47/13

CN113417631A	2021-09-21
CN108386153A	2018-08-10
CN108468531A	2018-08-31
CN113062729A	2021-07-02
US20060185900A1	2006-08-24
US20080000688A1	2008-01-03

HANDBEST CHINA LIMITED (CN)

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