完善单砂体注采关系的做法及效果

Comprehensive Use of Pattern to Improve the Injection-production Relation of Single Sand Body

论述了喇嘛甸油田特高含水期完善单砂体注采关系的必要性和可行性 ,提出了评价单砂体注采完善程度的一种新方法 ;通过解剖典型区块 ,分析了不同沉积模式储层的注采完善程度 ;阐述了通过井网综合利用完善单砂体注采关系的做法及效果。实践表明 :井网综合利用完善单砂体注采关系应采取灵活调整的做法 ,既要坚持不打乱开发层系的原则 ,又要根据聚合物驱阶段性强的特点 ,灵活运用水驱高关井和低产能井挖掘聚驱注采不完善部位的剩余油。

This paper illustrates the necessity and feasibility of improving the injection-production relation of single sand body in the high water cut stage in Lamadian oilfield, and proposes a new method for evaluating the injection-production perfecting ratio of single sand body. By profiling a typical block, it analyzes the injection-production perfecting ratio of different sedimentary patterns, and illustrates the method and effect of comprehensie use of pattern to improve the injection-production relatioin. The practice shows that flexibe adjustment should be used in comprehensive use of pattern to improve the injection-production relatioin. It should be performed without changing the development series of strata to use waterflooded high shut-in wells and low productive wells so as to produce the remaining oil.