离子液体对稠油的改质降黏研究进展

Research Progress of Heavy Oil Modification and Viscosity Reduction by Ionic Liquid

传统的稠油资源有效开发技术面临日益严峻的安全、环保与经济性的挑战。离子液体作为稠油常温有效开采的绿色溶剂具有巨大的应用潜力。本文阐述了离子液体的概念和物理化学性质,简要回顾了离子液体的发展历程。从离子液体作为稠油降黏剂、分散剂、原位改质降黏驱替实验几个方面总结了国内外研究进展与认识。考虑目前研究存在的问题与油田实际,离子液体应以现有热采技术无法经济有效开采的资源及注蒸汽开发后需提高采收率的稠油油藏为应用目标,作为超前储备技术加快研发,尽快从室内推向现场。

The traditional effective development technology of heavy oil resources is facing increasingly severe challenges of safety,environmental protection and economy.As a green solvent for heavy oil recovery at room temperature,ionic liquid has great potential.The concept and physicochemical properties of ionic liquids are described.The development of ionic liquids is reviewed.This paper summarizes the research progress and understanding of ionic liquid as viscosity reducer,dispersant,in-situ modification and displacement experiment.In view of the existing problems in the current research and the actual situation of the oil field,the application target of ionic liquid is the resources that can't be economically and effectively exploited by the existing thermal recovery technology and the heavy oil reservoir that needs to be enhanced recovery after steam injection development.As a new generation of in-situ modification and viscosity reduction technology for heavy oil,ionic liquid has great application potential.It should be used as an advanced reserve technology to speed up research and development.