金湖凹陷C6断块开发调整研究

The adjustment research of C6 faulted block in Jinhu Sag

金湖凹陷C6断块构造复杂,储层微相类型多,采用一套层系开发后,油田平面和纵向矛盾突出,油田因含水上升快而产量迅速递减,油田过早进入中高含水阶段,开发效果变差,针对油田水驱采收率偏低的现状,采用地质、物探、油藏工程等专业联合攻关,研究潜力方向,提出了细分层系调整的思路,进行了注采井网的调整,取得了较好的效果。

The structure of C6 faulted block is complicated, the type of sedimentary microfacies is various, and horizontal and vertical heterogeneity were serious during adopting a stratum development. The output of oilfield fell quickly because water cut had risen, oilfield had prematurely entered the middle-high water cut stage, and development effect became poor. Aiming at low water displacement recovery, we use geology,eservoir and exploration to research oil potential. The technique of the subdivision of series of strata development is also used to adjust well pattern, and this adjustment achieves superior result.