油田开发中后期可采储量标定方法  

Recoverable reserves calibration in the middle-late stage of reservoir development

作　　者：苏映宏[1] 

机构地区：[1]中国石化胜利油田地质科学研究院

出　　处：《石油勘探与开发》2005年第6期94-96,共3页Petroleum Exploration and Development

基　　金：中国石化科技攻关项目"特高含水期油田开发评价体系及方法研究"(P03025)

摘　　要：在油田开发中后期,部分油田或开发单元调整产液结构后,水驱特征曲线表现出“压头”、“上翘”现象,用水驱特征曲线计算的可采储量不能反映开发单元的实际开发状况。根据渗流力学原理,建立油田开发中后期开发单元采油速率与采出程度之间的关系式,利用该关系式可计算出油田开发单元的最终采收率及可采储量。应用分析表明,该方法计算的可采储量合理,较好地解决了在油田开发中后期水驱曲线变形给标定采收率带来的困难。In the middle-late stage of reservoir development, the water drive curves show ＂downward＂ or ＂upward＂ phenomena after the production structure adjustment of oilfields or development units. The recoverable reserves calculated from the water drive curves don＇ t reflect the real exploitation performance. Based on the filtration theory, the relationship between oil production rate and recovery in the middle-late stage of reservoir development, which can be used to figure out the uhimate recovery and recoverable reserves of the development units, was presented. The application indicates that the method gives rise to rational recoverable reserves and settles the difficulties brought by distortion of water drive curve.

关 键 词：水驱曲线 可采储量 废弃采油速率 采出程度 

分 类 号：TE328[石油与天然气工程—油气田开发工程]