聚合物驱开发阶段对油层分类的认识

Understanding of Reservoir Classification at the Stage of Polymer Flooding

在总结水驱开发阶段以及聚合物驱开发初期油层分类模式的基础上,指出原有的油层分类方法已 经不能满足现有的精细油田开发设计的需要。因此,要发展聚合物驱条件下的精细地质研究。结合多年 的试验与研究,按照“长垣内部统一性、萨葡油层同一性、开发方式针对性、油层开采实用性”和“相 同注采井网、相同油层性质、相同注剂参数”的原则,提出了聚合物驱开发阶段油层分类模式,把萨、 葡油层分成三种类型,并分别提出相应的井网开发模式。

Based on the analysis of the reservoir classification pattern at water flooding development stage and early stage of polymer flooding development, this paper points out that the former reservoir classification method can no longer meet the needs of the current precision oilfield development design. Therefore, to develop precision geological study under polymer flooding condition, the paper has raised a new reservoir classification pattern at polymer flooding development stage, following the principle of 'Inner placanticline unity. Sapu reservoir identity, development mode pertinency, reservoir recovery practicability', and common injection/recovery well pattern, common reservoir property, common injection agent are carried out. thus Sapu reservoirs are classified into 3 types and the corresponding well pattern development mode is proposed.