低渗砂岩油藏水平井开发井网模式优选  

Optimization of Well Pattern Using Horizontal Well for the Development of Low Permeability Reservoirs

作　　者：刘德华[1] 刘志森[1] 李菊花[1] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023

出　　处：《石油天然气学报》2009年第6期136-140,共5页Journal of Oil and Gas Technology

基　　金：中国石油科技创新基金项目(2008D-5006-02-04)

摘　　要：水平井开发油藏已成为提高储量控制程度和改善油田开发效果的重要手段,在我国许多油田开始得到普遍应用,根据水平井对油藏的适应条件,大庆、长庆等低渗、特低渗油田将水平井作为提高油井产能和油田产量的主要方式。利用数值模拟方法和矢量化井网概念研究了具有原生裂缝的特低渗油藏应用水平井开发的井网优化模式,以长庆油田元48井区长4+5油藏为原型展开研究,主要包括井距、井网形式的模拟分析,水驱方向优选等,最后得到合理水平井开发井网形式。研究结果对同类油藏具有实际指导意义。Using horizontal well to develop reservoir was one of the important means for enhancing control extent of reserves and improving the effect of oilfield development.It was widely used in the oilfields of China.According to the reservoir adaptive conditions of horizontal wells,in low permeability and extremely low permeability oilfields such as Daqing Oilfield,Changqing Oilfield,horizontal wells were used as a major means for raising the deliverability of oil wells and oil production.Numerical simulation method and vector well pattern conception were used for studying well patterns for the development of fractured extremely low permeability reservoirs with primary fractures by using horizontal wells,4+5 reservoir in Wellblock 48 of Changqing Oilfield was used as a prototype of studying,mainly including the simulation analysis of well spacing,well pattern mode and optimization of water flooding extending orientation,thus a rational well pattern of waterflooding orientation was obtained.The result can be used for guiding the development of similar reservoirs.Optimization of well pattern is obtained.

关 键 词：水平井 井网模式 低渗油藏 裂缝 

分 类 号：TE324[石油与天然气工程—油气田开发工程]