正韵律厚油层剩余油富集区水平井段优化研究  

Optimization of horizontal interval for rich residual oil zone in thick positive rhythm reservoir

作　　者：王延忠[1] 陈德坡[1] 刘志宏[2] 贾俊山[2] 李琴[2] 

机构地区：[1]中国地质大学,北京100083 [2]中石化胜利油田有限公司,山东东营257015

出　　处：《特种油气藏》2005年第3期42-44,108,共4页Special Oil & Gas Reservoirs

基　　金：本文系中石化集团公司重大科技攻关课题"胜利中高渗整装油田韵律层挖潜技术研究与应用"中的研究成果(课题编号:P01035)

摘　　要：水平井技术是挖潜特高含水期正韵律厚油层顶部剩余油富集区最为有效的方法。在影响水平井开发效果的多种因素中,水平井段长度是水平井设计的重要参数,直接影响水平井的开发水平。本文以胜坨油田二区沙二段74小层为例,建立相似油田概念模型,利用精细油藏数值模拟,研究不同水平井段长度和无因次水平井段长度下的整个油藏水平井开发效果,研究成果为同类型油藏剩余油富集区的水平井挖潜提供了借鉴。Horizontal well is the most effective method for tapping the rich residual oil zone on the top of thick positive rhythm reservoir in extra-high water-cut period. The length of horizontal interval is an important parameter among many factors affecting horizontal well development response. Taking 74 subunit in s2 member of Zone 2 in Shengtuo oilfield as an example, a conceptual model of similar oilfield is established to study the development response of overall reservoir under different horizontal interval length and dimensionless horizontal interval length through precise numerical simulation. The result of this study has provided reference for tapping rich residual oil zone by horizontal wells in similar reservoirs.

关 键 词：特高含水期 正韵律 厚油层 剩余油 水平井 数值模拟 胜坨油田 

分 类 号：TE319[石油与天然气工程—油气田开发工程]