The advances of organic chromium based polymer gels and their application in improved oil recovery

被引:42
作者
Zhang, Hongwen [1 ,2 ]
Yang, Hongbin [1 ,2 ]
Sarsenbekuly, Bauyrzhan [1 ,2 ,3 ]
Zhang, Min [1 ,2 ]
Jiang, Haizhuang [1 ,2 ]
Kang, Wanli [1 ,2 ]
Aidarova, Saule [1 ,2 ,3 ]
机构
[1] China Univ Petr East China, Key Lab Unconvent Oil & Gas Dev, Minist Educ, Qingdao 266580, Peoples R China
[2] China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China
[3] Kazakh British Tech Univ, Alma Ata 050000, Kazakhstan
基金
中国国家自然科学基金;
关键词
Organic chromium; Polymer gel; Enhanced oil recovery (EOR); Conformance control; PARTIALLY HYDROLYZED POLYACRYLAMIDE; CONFORMANCE CONTROL; HYDROPHOBIC ASSOCIATION; SURFACTANT POLYMER; CROSS-LINKING; HEAVY OIL; GELATION; NANOPARTICLES; MICRORHEOLOGY; TEMPERATURE;
D O I
10.1016/j.cis.2020.102214
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In recent years, with the further development of old oilfields, in order to further improve the oil recovery, they must be conformance controlled. Among various types of conformance control methods, polymer gels composed of polymers and crosslinkers have attracted widespread attention because of their efficiency and low costs. Among them, organic chromium gels with their good formation adaptability and high stability have been fully developed in recent decades. This review introduces the different types of polymers and crosslinkers used in the preparation of organic chromium gels, and the mechanisms of affecting their performance are analyzed. On this basis, the organic chromium gels for different formation conditions are introduced, including nanopartide-reinforced and compound organic chromium gels. At the same time, evaluation methods of organic chromium gels are introduced, while the focus is on the in-situ measurement method (mirco-rheology) of gel formation time developed in recent decades. Based on the currently developed organic chromium gel and the analysis of the development status in oilfields, future directions like the use of supramolecular organic chromium gel and shear organic chromium gel are suggested. (C) 2020 Elsevier B.V. All rights reserved.
引用
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页数:13
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