双河油田储层结构要素井网控制方法探讨

从储层结构要素的几何形态及物性分布特征入手,研究了不同结构要素对油层注采能力的影响,并在此基础上分析了现井网对结构要素的控制程度以及不同结构要素的井网控制方法。认为高含水后期油井部署应尽量避开吸水产液能力强的水下分流河道、河口坝中心部位;吸水产液能力差的上倾尖灭席状砂部位可适当缩小注采井距,配合稳油控水注采结构调整,最大限度地控制每一单砂体,提高油田水驱采收率。

A Study on Well Pattern Control Methods Over Reservoir Architectural Elements in Shuanghe Oilfield

Beginning with geometry of reservoir architectural elements and features of physical property distribution,this paper studies the impacts of various architectural el-ements on injection -production capacity of oil layers and further analyzes the degree of control of the exist-ing well pattern over architectural elements and well pattern control methods over different architectural ele-ments.Development wells should be positioned away from underwater dis tributary channels and the central part of mouth bar with strong water absorbing and liq-uid pro ducing capacity at the late development stage with high water-cut.In combination with stabilization of oil pro duction and water-cut control and adjustment of in jec tion-pro duction structure,injection-production well spacing can be appropriate ly shortened where there exist updip pin chout sand sheet with poor water absorbing and liquid producing capacity to control each single sand body and enhance waterflooding oil recovery.