摘要
聚合物驱后原油的采出程度一般为50%左右,聚合物驱后剩余油仍具有相当大的开采潜力。但是,目前有关这方面的研究尚处于起步阶段,需要系统总结以明确其发展方向。通过简要阐述中外聚合物驱后剩余油研究的发展历程,分类介绍了聚合物驱后剩余油研究的6种主要方法及其应用情况,系统总结了聚合物驱后微观及宏观剩余油分布规律研究所取得的主要成果和研究现状。最终,提出了目前存在研究对象不具代表性、研究方法单一化、研究结论仍处于定性认识阶段以及研究重点不突出等关键问题,并进一步指出了聚合物驱后剩余油研究将向精细化、集成化、系统化和互助化4大方向发展。
Normally,oil recovery after polymer flooding is about 50%,and residual oil reserves after polymer flooding is still of high exploitation potential.However,the current research is still at the primary stage.In order to make clear its development trend,a systematic overview is needed to be carried out.So,the development process of residual oil study after polymer flooding has been briefed in the beginning.Then,the six main approaches and their applications are introduced separately.After that,the main related findings of residual oil studies after polymer flooding in micro and macro scale and its research status are summarized.Finally,the four key problems at present are proposed,such as the representativeness of the study objects,lack of multiple study approach,and hard to characterize the study result quantitatively,and difficult to locate the key study point.Furthermore,the four development trends of residual oil study after polymer flooding are thereby put forward,such as elaboration,integration,systematic and mutualization.The research results can provide certain methodological and theoretical references on the residual oil studies and the potential tapping after polymer flooding.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2010年第4期37-42,共6页
Petroleum Geology and Recovery Efficiency
基金
国家重大技术装备研制和重大产业技术开发专项"改善高含水油田后期水驱效果技术开发和应用"05-06专项课题之"高含水提高采收率关键技术研究"(06-02A-01-02)
