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孤东油田二区开发单元,目前已进入特高含水开发阶段,由于油层非均质性及驱替水与油层内流体流度比制约着注入水的驱油效果,水驱采收率不高。针对二区油藏特点及水驱开发现状,决定开展聚合物驱可行性研究。
The development unit of Block II of Gudong Oilfield has now entered the development stage of ultra-high water-cut. Due to the heterogeneity of the reservoir and the fluid flow ratio between the displaced water and the oil reservoir restricting the flooding effect of injected water, the waterflood recovery is not high . In response to the characteristics of the Second District reservoir and the development of waterflooding, a feasibility study on polymer flooding was decided.