A Research Progress of CO_(2)-Responsive Plugging Channeling Gels  

作　　者：Yang Xiong Jianxin Liu Xianhao Yi Bangyan Xiao Dan Wu Biao Wu Chunyu Gao 

机构地区：[1]Key Laboratory of Drilling and Production Engineering for Oil and Gas,Yangtze University,Wuhan,430100,China [2]School of Petroleum Engineering,Yangtze University,Wuhan,430100,China

出　　处：《Energy Engineering》2024年第7期1759-1780,共22页能源工程（英文）

基　　金：Supported by the Open Fund Project of Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering(YQZC202105);Yangtze University Student Innovation Program(Yz2022018).

摘　　要：In the heterogeneous reservoirs,CO_(2) flooding easily leads to CO_(2) gas channeling,which can seriously affect sweeping efficiency and reduce oil recovery.After thoroughly investigating the advantages and shortcomings of various CO_(2) plugging technologies,this paper focuses on the feasibility of improving conventional water-alternating gas(WAG)through CO_(2)-responsive gel materials.Based on the different chemical reaction mechanisms between the unique chemical structure and CO_(2),changes in the material’s physical and chemical properties can respond to CO_(2).The feasibility of utilizing these property changes for CO_(2)-responsive plugging is explored.Various CO_(2)-responsive gels and gel nanoparticles have been extensively researched in different fields,such as energy,medicine,and biology.This paper surveys the molecular structures,chemical compositions,response mechanisms,and changes of these CO_(2)-responsive gels,aiming to draw insights into the carbon dioxide-enhanced oil recovery(CO_(2)-EOR)field.Finally,the key issues and future development direction of CO_(2)-responsive plugging gels were analyzed.

关 键 词：Gas channeling sweep efficiency CO_(2)-responsive gel CO_(2)-EOR 

分 类 号：TQ427.2[化学工程]