DEVICE AND METHOD FOR ACTIVE MEASUREMENT OF CROSS-FAULT INTERFACE NEWTON FORCE IN SHALE GAS MINING PROCESS

WIPO Patent Application WO/2022/057947

A1

A device for active measurement of cross-fault interface Newton force in a shale gas mining process, comprising an NPR anchor cable (1) and at least one pair of measurement assemblies (2) symmetrically sleeved on the NPR anchor cable. The measurement assemblies comprise a platform mechanism (21), an squeezing mechanism (22), a constant resistance mechanism (23) and a sensing mechanism (24). Further disclosed is a method for active measurement of cross-fault interface Newton force in a shale gas mining process, the specific steps being: acquiring at least one pair of symmetrically arranged measurement assemblies and inserting same into a rock hole so that each pair of symmetrically arranged measurement assemblies are respectively located on two sides of a rock fault, and measuring in real time key parameters influencing fault stability. The device and the method for measurement is able to, for identified hazard faults, accurately and constantly collect in real time the key parameters influencing fault stability on the cross-fault interface in a fracturing process of the hazard fault, and thus providing data support for the prediction of disasters.

TAO ZHIGANG (CN)
SHI TINGTING (CN)
MA GAOTONG (CN)
MING WEI (CN)
HE MANCHAO (CN)

PCT/CN2021/122372

March 24, 2022

September 30, 2021

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UNIV CHINA MINING (CN)

E21B49/00; E21D21/00

CN112228131A	2021-01-15
CN111441826A	2020-07-24
CN111721457A	2020-09-29
CN112302060A	2021-02-02
CN101887624A	2010-11-17
CN113187471A	2021-07-30
CN111894565A	2020-11-06
JP2011214240A	2011-10-27

BEIJING WUZHOUYANGHE & PARTNERS (CN)

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