Title:
CORING AND SAMPLING INTEGRATED LOGGING INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2021/135036
Kind Code:
A1
Abstract:
Disclosed is a coring and sampling integrated logging instrument, comprising an underground main body (4) and a ground system (1), wherein the underground main body (4) is connected to the ground system (1) by means of a long cable (3), and the underground main body (4) comprises a coring and sampling mechanism (10), a power mechanism (9) and an energy storage mechanism (45); the coring and sampling mechanism (10) comprises a coring assembly (15) for drilling a rock core and a pushing and setting assembly (12) for downhole fixation; the power mechanism (9) is arranged at the upper end of the coring and sampling mechanism (10); the power mechanism (9) comprises an electric motor (19), a piston structure (18) and a pump body (20); the piston structure (18) and the pump body (20) are arranged at two output ends of the electric motor (19), respectively; the piston structure (18) is arranged to provide suction power; the pump body (20) is arranged to provide hydraulic power; and the energy storage mechanism (45) is arranged at the lower end of the coring and sampling mechanism (10), the energy storage mechanism (45) is arranged to store pressure energy of the power mechanism and can serve as a temporary power source, and the energy storage mechanism (45) is arranged to provide temporary power for the underground main body (4) so as to ensure the safety of the underground main body (4).
Inventors:
LU TAO (CN)
FENG YONGREN (CN)
XU CHANGGUI (CN)
TIAN ZHIBIN (CN)
QIN XIAOFEI (CN)
ZHOU MINGGAO (CN)
CHU XIAODONG (CN)
LIU TIEMIN (CN)
XUE YONGZENG (CN)
WEI ZANQING (CN)
HUANG LIN (CN)
FENG YONGREN (CN)
XU CHANGGUI (CN)
TIAN ZHIBIN (CN)
QIN XIAOFEI (CN)
ZHOU MINGGAO (CN)
CHU XIAODONG (CN)
LIU TIEMIN (CN)
XUE YONGZENG (CN)
WEI ZANQING (CN)
HUANG LIN (CN)
Application Number:
PCT/CN2020/090267
Publication Date:
July 08, 2021
Filing Date:
May 14, 2020
Export Citation:
Assignee:
CHINA OILFIELD SERVICES LTD (CN)
CHINA NAT OFFSHORE OIL CORP (CN)
CHINA NAT OFFSHORE OIL CORP (CN)
International Classes:
E21B49/08; E21B49/06
Foreign References:
| CN108756874A | 2018-11-06 | |||
| CN104213898A | 2014-12-17 | |||
| CN207280806U | 2018-04-27 | |||
| CN107420099A | 2017-12-01 | |||
| CN104234709A | 2014-12-24 | |||
| CN1333459A | 2002-01-30 | |||
| CN102619503A | 2012-08-01 | |||
| US5251703A | 1993-10-12 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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