DOWNHOLE ROCK DEBRIS EXTRACTION SYSTEM AND CONTROL METHOD THEREOF

WIPO Patent Application WO/2020/019367

A1

Disclosed is a downhole rock debris extraction system. The downhole rock debris extraction system comprises a downhole marking module (1), a ground control module (2), and a ground detection and extraction module (3). The downhole marking module and the ground detection and extraction module are electrically connected to the ground control module, respectively; the downhole marking module is provided at an underground excavation drill bit or near the drill bit, and is used for marking mined rock debris by spraying different types of markers in real time during drill bit excavation; the ground detection and extraction module is used for detecting the types of the markers on the rock debris; and the ground control module is used for managing and controlling the downhole marking module to perform marking, and managing and controlling the ground detection and extraction module to determine the types of the markers on the rock debris. Further disclosed is a control method for the downhole rock debris extraction system. The system and method can effectively meet the requirements of high detection ageing and simple and easy operation for downhole rock debris extraction, and can implement the purpose of accurate sampling, low sampling cost and high completed amount.

SONG XIANG (CN)
WEI BING (CN)
SUN LILI (CN)

PCT/CN2018/098529

January 30, 2020

August 03, 2018

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CNPS PETRO EQUIPMENT CO LTD (CN)

E21B49/00; G01N23/00

WO2012078204A1

2012-06-14

CN201090210Y	2008-07-23
CN1789656A	2006-06-21
CN103927547A	2014-07-16
CN1056553A	1991-11-27
US20170074080A1	2017-03-16
US5358057A	1994-10-25

BEIJING ZHUOTANG IP AGENT CO., LTD. (CN)

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