聚合物纳米微球调驱技术在低渗透油田的应用及效果
Petrochemical Industry Application(2012)
Abstract
低渗透油田由于储层物性差、非均质性强,进入中高含水开发期后,油藏水驱状况变差、水驱油效率降低,含水上升速度加快,油藏稳产形势严峻,常规手段控水稳油及提高采收率难度加大。因此,本文通过借鉴东部油田成功案例,结合低渗透油藏储层特征及室内实验基础上,应用聚合物纳米微球在油层中深部封堵和驱油的双重特性,开展先导性矿场试验,注入后试验井组水驱状况变好,试验井组提高采收率效果明显,有效丰富了低渗透油藏提高采收率稳产技术体系,为低渗透油藏提高采收率奠定了基础。
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Key words
polymer nano-tone drive,ultimate recovery,field application
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