摘要
在考虑压裂和储层各向异性的情况下,设计矩形井网、菱形反九点井网、反七点井网及正方形反九点井网,模拟计算并对比其采出程度.对于条带状砂体,对比井排平行砂体延伸方向和垂直砂体延伸方向2种布井方式,当井排方向平行砂体延伸方向时,其采出程度比垂直砂体延伸方向的采出程度要高.该成果可为低渗透油藏合理井距、排距的确定,合理注采系统的选择,加密井的部署,以及井网优化调整等提供理论指导.
Considering fracture and the difference of reservoir in different directions,we designed rectangular pattern,rhombus inverted nine-pointed pattern,inverted seven-pointed pattern and square inverted nine-pointed pattern,also simulated calculations and compared the degree of reserve recovery.As for banded sand body,we compared well spacing pattern including the direction of well array and bearing of trend of sand body both parallel and vertical.The degree of reserve recovery was higher while the direction of well array and bearing of trend of sand body was parallel than it was vertical.The achievement provides theoretical guidance for fixing rational spacing between wells and the distance of well array,selecting rational water flooding regime,deploying interspaced well,optimizing and regulating well pattern and so on.
出处
《大庆石油学院学报》
CAS
北大核心
2010年第2期68-72,共5页
Journal of Daqing Petroleum Institute
基金
国家自然科学基金项目(50634020)
关键词
低渗透
井网
砂体
朝阳沟油田
合理匹配
low permeable sublayer
well pattern
sand body
Chaoyanggou oilfield
rational matching
