摘要
镇泾油田ST2井区长62油藏是典型的特低渗透油藏,储层物性非均质性较强、局部微裂缝发育严重、油水分异性较差。自投入开发以来,单井产量低,递减速度快,开发后期单井产液能力较低,油井提液难度较大。根据长62油藏开发特点,从合理井距、合理井网密度、合理油水井数比等方面,对目前油藏注采井网的适应性进行了研究,提出了后期注采结构调整建议,并利用数值模拟软件进行了方案论证,对于合理高效开发该油藏具有一定的指导意义。
The Chang 62 reservoir of ST2 borefild of Zhenjing field is typical extra-low permeability reservoir, which present serious heterogeneity, partly micro-fracture dense, pooroil/water transition zone characteristics. Since putting intoproduction, the liquid and oil producing quantum of single well was low, production declining rate was high in early days, liquid producing capacity was low and hard to improvein later stage. Based on Chang 6 reservoir development characteristics, this paper make research on accommodation of injection-production pattern referring to rational spacing between wells, well spacing density, injector producer ratio,and offer some proposals to future regulation, forecasted and demonstrated by numerical model, which is meaningful toguide the future rational and efficiently development.
出处
《石油地质与工程》
CAS
2009年第5期50-53,1,共4页
Petroleum Geology and Engineering
关键词
镇泾油田
合理井距
井网密度
合理油水井比
井网适应性
Zhengjing oil field
rational spacing between wells
rational well spacing density
rational injector producer ratio
accommodation of injection-production pattern
