下二门油田聚合物驱开发实践及认识

Polymer Flooding in High Permeable and Viscous Xiaermen Oilfield

聚合物驱作为一种三次采油方法已进入矿场工业化应用阶段。下二门油田H2Ⅱ油组是河南油田第一个工业化推广应用区块,该区块经过3年多的注聚开发,已结束注聚转入后续水驱,取得了明显的降水增油效果。总结了该区块注聚合物过程中为提高聚驱效果采取的主要作法,分析了聚合物驱开发效果,对其它同类油田开展聚合物驱应用有借鉴意义。

As a kind of tertiary oil recovery method, polymer flooding has entered into commercial application stage. H2 Ⅱ formation is first large scale commercial use of polymer flooding unit in Xiaermen Oilfield. Through about three year's polymer flooding production,now this area is being in water flooding period, obvious effect of increasing oil and decreasing water production is achieved. This papersummarizes the main practice in polymer flooding, and analyzes the polymer flooding effect. It provides a referential evidence for development of polymer flooding in the same oilfield.