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Title:
FLUID SEPARATION DEVICE, WELL STRUCTURE, AND OIL OR GAS PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/047871
Kind Code:
A1
Abstract:
A fluid separation device, well structure, and oil or gas production method. During operation, when a fluid separation device (010) moves up to an upper end of a well (201), a core tube (400) impacts an upper impact device (202), such that the core tube (400) moves from a closed position to an open position. At the same time, a control device (600) drives a valve plate (500) to rotate forward by a first predetermined angle to increase a flow area of a fluid passageway (401). Oil or gas below the fluid separation device (010) can pass through the fluid passageway (401) to above the fluid separation device (010), thus reducing a force-receiving area of the fluid separation device (010), so as to enable the fluid separation device (010) to quickly descend to the well bottom without shut-in of the well.

Inventors:
ZHOU, Tongtong (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TANG, Yong (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHANG, Gang (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LI, Junmin (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHANG, Zhonglin (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Shufei (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
SU, Shice (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
YI, Chengxiong (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHOU, Hua (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TAN, Yuxi (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TANG, Tian (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Xiangmeike (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Hansen (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
CHEN, Junhong (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Shiji (Liu Shuhao, No. 211 Hongqi Avenue, Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
Application Number:
CN2018/104240
Publication Date:
March 14, 2019
Filing Date:
September 05, 2018
Export Citation:
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Assignee:
LIU, Shuhao (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
International Classes:
E21B33/12
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