海上大井距油田河流相储层研究方法

Research Method of Fluvial Reservoirs in Offshore Wide Spacing Oilfield

河流相储层的研究,直接影响到油气藏开发效果,如何进行精细储层表征关系到能否正确量化开发指标、或者能否正确描述剩余油分布进而有效减少低效井比例。海上油田有别于陆地油田,又无开发经验借鉴,基于海上油田开发的特殊性,本文深入分析了海上油田开发面临的主要问题,提出了适合于海上油田开发的研究思路和技术体系。这一创新的认识与实践,不仅为我国海上油田开发探索出一条新路,也为大于100 m井网的陆上油田,开创性地提出了储层的研究分析思路和方法。研究表明,“复合砂体构型”的研究方法,是海上大井距油田河流相储层行之有效的研究方法,也是一种精细储层构型研究的发展趋势。

The study of fluvial reservoirs influences the effect of reservoir development directly. How to characterize reservoirs accurately determines whether it can quantify development index accurately or whether it can get the distribution of remaining oil to decrease the ratio of low efficient wells. Offshore oilfield is different from onshore oilfield and lack of development experience for reference. Based on particularity of offshore oilfield development, it analyzes main problems of offshore oilfield development and puts forward research thinking and technical system for offshore oilfield development. These innovative idea and practice not only explore a new way for offshore oilfield development in our country but also propose research thoughts and methods of reservoirs for onshore oilfield with well spacing of more than 100 meters. The research shows that study of composite sand body architecture is effective research method for fluvial reservoirs in offshore wide spacing oilfields as well as trend for study of fine reservoir architecture research.