摘要
利用油藏—裂缝耦合方法,建立了一种油、水两相三维油藏裂缝数值模型,采用对裂缝进行矩形网格剖分、与油藏连接处进行PEBI网格剖分相结合的方法,可以实现对不同井网条件下生产井压裂效果进行数值模拟研究。以胜利油田史深100低渗透断块油藏为例,在反九点法井网条件下,提出综合效果评价指标,对注水井压裂参数设计进行了优化计算。研究结果为低渗透油藏注水井压裂设计和效果评价提供了一种研究手段,对于提高低渗透油田注水效果具有实际意义。
This paper introduces a new kind of three dimensional, two phase (oil and water) numerical simulation model of reservoir and fracture by employing the coupling reservoir-fracture method. Numerical simulation can be carried out on the result of production well fracturing in different well patterns based on the methods of rectangle grid subdivision for fractures and PEBI grid subdivision in the reservoir joint. The paper gives an example in Shishen 100 fault block pools of low permeability in Shengli Oilfield. Under the condition of inverted nine spot well patterns, the comprehensive effect evaluation indexes are proposed to conduct optimizing calculation for fractured injection well design. The results supply a research method for the fracturing design and effect evaluation of the injection wells in low permeability reservoirs and are important for improving the water-flood effect of low permeability oilfield.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2007年第1期54-57,共4页
Oil Drilling & Production Technology
基金
"十五"国家科技攻关计划"低渗透油田增产改造关键技术研究"所属专题(2003BA613A-07-05)
关键词
低渗透
水井压裂增注
参数优化
PEBI网格剖分
数值模拟
low permeability
well fracturing stimulation
parameter optimization
PEBI grid subdivision, numerical simulation
