Application status and prospect of ionic liquids in oilfield chemistry

作     者：Jinsheng Sun Zhuoyang Xiu Li Li Kaihe Lv Xianfa Zhang Zonglun Wang Zhiwen Dai Zhe Xu Ning Huang Jingping Liu Jinsheng Sun;Zhuoyang Xiu;Li Li;Kaihe Lv;Xianfa Zhang;Zonglun Wang;Zhiwen Dai;Zhe Xu;Ning Huang;Jingping Liu

作者机构：School of Petroleum Engineering China University of Petroleum (East China) CNPC Engineering Technology R&D Company Limited Oil & Gas Technology Research Institute of Changqing Oilfield Company 

出 版 物：《Petroleum》 (油气(英文))

年 卷 期：2024年第10卷第1期

页      面：11-18页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0703[理学-化学] 082002[工学-油气田开发工程] 

基　　金：the support from the National Natural Science Foundation of China (No. 52074330&No. 52288101) Taishan Scholar Foundation of Shandong Province (No. 202208832) 

主　　题：Ionic liquids Oilfield chemistry Shale inhibitor Drilling fluid 

摘      要：The ionic liquid, as a new treatment agent, has been increasingly applied in oil fields due to its strong temperature resistance, good solubility and high surface activity. In this paper, we systematically discuss the action mechanism and application effect of ionic liquids in oilfield chemistry. Ionic liquids can inhibit shale hydration expansion and reduce fluid loss through adsorption and intercalation, inhibit the formation of natural gas hydrate through imidazole five-membered ring structure as a space barrier, reduce viscosity of heavy oil by breaking chemical bonds of heavy oil macromolecules and charge transfer,improve oil displacement efficiency by forming ions pairs with carboxyl groups in crude oil, demulsify by forming channels between dispersed water droplets, acidify the formation by reacting with water to produce acid, interacts with organic material through weak hydrogen bonds and extracts it from oilfield wastewater, desulphurize by inserting sulfide molecules into the “stack structure and form liquid inclusion complex, inhibit corrosion by forming a protective film on the metal surface. Based on the above aspects, the development direction of ionic liquids is proposed. The application of ionic liquids in oilfield chemistry is still in its infancy. It is urgent to fully explore the application performance of ionic liquids in oilfield chemistry, which also provides theoretical and technical supports for efficient reservoir development.