FIDELITY CORING DEVICE

WIPO Patent Application WO/2020/113721

A1

A fidelity coring device, comprising an outer cylinder (10) and a fidelity cabin (30). The fidelity cabin (30) is provided in a hollow cavity of the outer cylinder (10). The outer cylinder (10) is used for drilling a core. The fidelity cabin (30) is used for accommodating the core. The outer cylinder (10) is provided with a first reservoir (40) and a second reservoir (50) which are connected to the fidelity cabin (30) by means of a pipeline. Liquid A is stored in the first reservoir (40), and liquid B is stored in the second reservoir (50). The liquid A and the liquid B are mixed in the fidelity cabin (30) to cause a mass transfer effect so as to generate a phase shift and form a protective film on the surrounding surface of the core. The protective film causes the core to be isolated from the external environment. By providing the fidelity cabin, the liquid A and the liquid B in the first reservoir can be mixed on the surrounding surface of the core in the fidelity cabin to cause a mass transport effect so as to form a protective film to be isolated from the external environment to achieve effects of mass guarantee, moisture, and gloss retention.

XIE HEPING (CN)
LIU TAO (CN)
GAO MINGZHONG (CN)
LI CUNBAO (CN)
ZHU JIANBO (CN)
WU YIFAN (CN)

PCT/CN2018/124154

June 11, 2020

December 27, 2018

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UNIV SHENZHEN (CN)

E21B25/00

CN106124242A	2016-11-16
CN205785892U	2016-12-07
CN102418520A	2012-04-18
CN205503067U	2016-08-24
CN106761382A	2017-05-31
US4334429A	1982-06-15

SCIHEAD IP LAW FIRM (CN)

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