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Title:
FLUID SEPARATION DEVICE, WELL STRUCTURE AND METHOD FOR PRODUCING PETROLEUM OR NATURAL GAS
Document Type and Number:
WIPO Patent Application WO/2019/047870
Kind Code:
A1
Abstract:
A fluid separation device (010), a well structure (020) and a method for producing petroleum or natural gas, which relate to the technical field of oil and gas exploitation, the fluid separation device (010) comprising : a barrel (110); a plurality of spacers (120) provided around the barrel (110); a first elastic member (130) provided between the spacers (120) and the barrel (110) and applying elastic force to the spacers (120) outward in the radial direction of the barrel (110); a first guide device (200) axially inserted into the barrel (110) and configured to move back and forth between an extension position and a retraction position in the axial direction of the barrel (110); and a second guide device (300) inserted into the barrel (110), one end of the second guide device being connected to the spacers (120), and the other end of the second guide device being slidably fitted with the first guide device (200) by means of a fitting surface (100). The fluid separation device (010) can eliminate the friction force between the spacers (120) and an inner wall of a well (400) while descending, so as to quickly descend back to the bottom of the well.

Inventors:
CHEN, Junhong (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TANG, Yong (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHANG, Gang (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LI, Junmin (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Hansen (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHANG, Zhonglin (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Shufei (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
SU, Shice (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
YI, Chengxiong (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHOU, Hua (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TAN, Yuxi (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
TANG, Tian (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Xiangmeike (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
ZHOU, Tongtong (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
LIU, Shiji (No. 211, Hongqi Avenue Deyuan Town, Pidu Distric, Chengdu Sichuan 0, 611730, CN)
Application Number:
CN2018/104237
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
Foreign References:
CN107313739A2017-11-03
CN106837234A2017-06-13
CN106677735A2017-05-17
CN104929561A2015-09-23
CN105804689A2016-07-27
US20040084224A12004-05-06
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