低渗透油藏压裂缝方位与井网类型匹配关系优化  

Optimization of Matching Relation between Hydraulic Fracture Orientation and Well Pattern in Low Permeability Reservoir

作　　者：王昌[1] 张国威[1] 俞启维 

机构地区：[1]长江大学石油工程学院,湖北武汉430100

出　　处：《广东石油化工学院学报》2015年第3期16-18,22,共4页Journal of Guangdong University of Petrochemical Technology

摘　　要：水沿裂缝方向突进是低渗透油藏注水开发亟需解决的突出问题。结合潜43井区裂缝方位的现状,利用数值模拟方法优化配置该井区裂缝方位与井网类型的关系,并对优选出的井网类型进行井距排距优化。研究结果表明油五点法井网中菱形井网方案控制含水率上升效果最好,说明沿裂缝延伸方向上增大井距有利于提高采收率,控制含水率上升;排距150m、井距400 m的菱形五点法井网更适应潜43油组。Water’s preference to flow along fracture is an urgent problem of low permeability reservoirs which depend on water flooding de-velopment .Based on fracture orientation of Qian 43 ,this paper adopts numerical simulation to optimize the relation between fracture orienta-tion and well pattern .The result shows that optimizing fracture orientation ,well pattern and well distance are useful measure for developing low permeability reservoirs .The result of numerical simulation shows that rhombus well pattern can efficiently control water cut rising . Thus ,through increasing well distance in hydraulic fracture orientation ,oil recovery would be enhanced and water cut increase would be controlled effectively .When row distance is 150 m and well distance is 400 m ,the rhombuswell pattern presents better performance .

关 键 词：含水率 压裂缝 井网优化 

分 类 号：P618.13[天文地球—矿床学]