Title:
CEMENT SHEATH STRAIN MEASUREMENT TOOL AND METHOD
Document Type and Number:
WIPO Patent Application WO/2024/055657
Kind Code:
A1
Abstract:
Provided are a cement sheath strain measurement tool and a cement sheath strain measurement method, which belong to the field of oil and gas exploration and development. The cement sheath strain measurement tool comprises a simulated wellbore apparatus, a high-temperature and high-pressure curing system and a strain measurement system, wherein the high-temperature and high-pressure curing system is used for providing a curing environment and a measurement environment for the simulated wellbore apparatus, and the strain measurement system is used for measuring the strain state of a cement sheath (02) of the simulated wellbore apparatus; the high-temperature and high-pressure curing system can provide a curing environment for the cement sheath (02), apply a pressure and a temperature to cure the cement sheath (02), and realize real-time measurement of strain data of the cement sheath (02) during a curing process; in addition, the high-temperature and high-pressure curing system also provides the cement sheath (02) with a measurement environment required for a loading process, and realizes real-time measurement of strain data of the cement sheath (02) during the loading process by means of providing a pressure and temperature environment inside a casing pipe (01), such that the stress state of the cement sheath (02) can be analyzed more accurately.
Inventors:
SHEN JIYUN (CN)
GUO XUELI (CN)
JI HONGFEI (CN)
CHENG YONGQIN (CN)
HUANG ZHAO (CN)
JIN JIANZHOU (CN)
YU YONGJIN (CN)
LI YONG (CN)
QI FENGZHONG (CN)
XU MING (CN)
JIANG JIWEI (CN)
LIU HUITING (CN)
XIA XIUJIAN (CN)
GUO XUELI (CN)
JI HONGFEI (CN)
CHENG YONGQIN (CN)
HUANG ZHAO (CN)
JIN JIANZHOU (CN)
YU YONGJIN (CN)
LI YONG (CN)
QI FENGZHONG (CN)
XU MING (CN)
JIANG JIWEI (CN)
LIU HUITING (CN)
XIA XIUJIAN (CN)
Application Number:
PCT/CN2023/100715
Publication Date:
March 21, 2024
Filing Date:
June 16, 2023
Export Citation:
Assignee:
CHINA NAT PETROLEUM CORP (CN)
CNPC ENG TECH RES & DEV CO LTD (CN)
CNPC ENG TECH RES & DEV CO LTD (CN)
International Classes:
G01B11/16; E21B47/005; E21B47/06
Foreign References:
| CN115506780A | 2022-12-23 | |||
| CN114518294A | 2022-05-20 | |||
| CN114993571A | 2022-09-02 | |||
| CN110410394A | 2019-11-05 | |||
| CN104533389A | 2015-04-22 | |||
| US20220228482A1 | 2022-07-21 | |||
| US20170205388A1 | 2017-07-20 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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