低渗透油藏菱形反九点井网面积波及系数研究  

Research on Areal Sweep Efficiency for Rhombus Invert 9-spot Areal Well Pattern of Low-permeability Reservoir

作　　者：朱圣举[1,2] 朱洁[3] 安小平[1,2] 张皎生[1,2] 柳良仁[1,2] 刘萍[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,西安710018 [2]低渗透油气田勘探开发国家工程实验室,西安710018 [3]西安工程大学环境与化学工程学院,西安710048

出　　处：《重庆科技学院学报（自然科学版）》2013年第2期80-84,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项(2011ZX05044)

摘　　要：依据低渗透油藏注水开发理论,应用低速非达西渗流基本公式及流线积分法和单元分析法,推导出低渗透油藏菱形反九点面积井网的面积波及系数计算公式。菱形反九点井网面积波及系数计算方法比正方形反九点多了2个单元计算公式,同样适用于正方形反九点。采用鄂尔多斯盆地某低渗透油藏的实际生产数据进行计算,符合性较好。Based on the water flooding theory of low-permeability oil reservoir,the areal sweep efficiency formula for calculating the rhombus invert 9-spot pattern is deduced by the basic formula of low velocity non-Darcy flow and by the flow line integral method and by element analysis method.Accordingly,areal-sweep-efficiency of the injection-production well group can be calculated.It is also applicable to the square invert 9-spot pattern.The application range is wider than the square invert 9-spot pattern.The areal sweep efficiency of one low-permeability reservoir of the Ordos Basin is calculated by the method.The result is close to the real value.

关 键 词：低渗透油藏 菱形反九点井网 正方形反九点井网 面积波及系数 

分 类 号：TE319[石油与天然气工程—油气田开发工程]