双河油田核三段储层非均质性研究

双河油田目前己经进入中高含水期和产量递减阶段，大量可动原油采不出来的问题，运用统计学方法研究了双河油田的储层层间非均质性、层内非均质性和平面非均质性，统计学方法较实用，直观，操作简便等特点，并且能定量地研究储层非均质程度。得出双河油田存在较严重的层内非均质性和层间非均质性，具有中等程度的平面非均质性。

Study on the Reservoir Heterogeneity within the 3rd Member of Hetaoyuan Formation in Oilfield Shuanghe

Nowadays, shuanghe oilfield has come into mature stage with a middle or high water cut In this stage, much moveable oil cannot be exploited yet So petroleum engineers expect the oil recovery can be ira--proved by studying on the reservoir heterogeneity. The heterogeneity of oilfield shuanghe is studied in this paper by using statistics. The reservoir heterogeneity includes internal heterogeneity in the target layers ,the heterogeneity between target layers and plane heterogeneity. It is recognized that the method of statistics is easier to de -- termine the degree of the reservoir heterogeneity than the other method. And moreover,the method of statistics is a quantitative approach to study the reservoir heterogeneity. Research indicates that the internal heterogeneity and the heterogeneity between target layers in oilfield shuanghe are both serious and the plane heterogeneity is moderate.