临盘油田复杂断块油藏注采井网优化

Optimization of reasonable injection-production well pattern in complex fault block of Linpan Oilfield

通过对胜利油区临盘油田复杂断块油藏动静态参数综合分析表明,几何形态、面积大小是影响复杂断块油藏水驱开发效果的敏感因素,在此基础上提出了复杂断块油藏按照形态精细分类方案;依托典型单元,建立了复杂断块油藏特征模型,运用油藏数值模拟方法,系统研究了不同面积规模下的分类复杂断块油藏合理注采井网,解决了以油藏单元分类方法指导复杂断块开发适应性、可操作性差的问题。

The analysis of the dynamic and static parameters of complex fault block reservoirs in Linpan Oilfield shows that the geometric shape and the area of the complex fault block reservoirs are the sensitive factors of influencing their water flooding development effect. On the basis of this,a method for the fine classification of the complex fault block reservoirs based on the geometric shape is proposed. The characteristic models of the different types of complex fault block reservoirs are established based on typical units,and the reasonable injection-production well patterns of the different types of complex fault block reservoirs under different areas are systematically studied using reservoir numerical simulation method,which solves the problem that guiding the development of complex fault block reservoirs by using reservoir unit classification method at present is of poor adaptability and difficult operation,and also provides reference for the well pattern design and the development adjustment of similar oilfields.