Title:
PLUGGING AGENT COMPOSITION AND USE THEREOF, AND HYDROCARBON RESERVOIR PLUGGING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/094007
Kind Code:
A1
Abstract:
A plugging agent composition and a use thereof, and a hydrocarbon reservoir plugging method. The plugging agent composition comprises a polymer latex and a stabilizer, wherein the stabilizer has a cross-linkable group and/or a couplable group; the cross-linkable group and/or the couplable group in the stabilizer are/is cross-linked or coupled in the presence of a crack and/or a leakage point, so that the polymer latex is condensed and cured. The plugging agent composition is a smart pressure-sensitive lost circulation material, which can address leaks promptly as the leaks occur and does not work unless there is a leak; and compared with an existing latex-demulsified lost circulation material, there is no need to use metal cations for demulsification, and the plugging agent composition can penetrate into cracks for plugging, and can plug cracks of different sizes from nanometers to millimeters; thus, the plugging effect is excellent, and the use requirements in the field of hydrocarbon reservoir plugging can be well met.
Inventors:
MIAO XIA (CN)
CHEN LEI (CN)
WANG MU (CN)
LI XIAOJIANG (CN)
WANG LISHUANG (CN)
WANG XIAOJING (CN)
LIU JIAN (CN)
ZENG MIN (CN)
LIU HAOYA (CN)
XU DAWEI (CN)
CHEN LEI (CN)
WANG MU (CN)
LI XIAOJIANG (CN)
WANG LISHUANG (CN)
WANG XIAOJING (CN)
LIU JIAN (CN)
ZENG MIN (CN)
LIU HAOYA (CN)
XU DAWEI (CN)
Application Number:
PCT/CN2023/128543
Publication Date:
May 10, 2024
Filing Date:
October 31, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEMICAL CORP (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
C08F220/18; C08F220/06; C08F220/56; C08F230/08; C08F283/06; C09K8/44
Attorney, Agent or Firm:
RUNPING & PARTNERS (Yingu Mansion No.9 Beisihuanxilu,Haidian District, Beijing 0, CN)
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