双河油田高温油藏低度交联聚合物体系性能研究
Petroleum Geology and Engineering(2018)
Abstract
根据有机酚醛/聚合物交联体系的成胶反应机理,配制出低度交联聚合物体系(聚合物1 000~1 500 mg/L+交联剂100~150 mg/L),模拟双河油田95℃高温油藏条件,实验研究了低度交联聚合物体系的成胶性能和长期热稳定性、注入性、流动成胶性能和驱油效果,结果表明,低度交联聚合物体系驱油效果明显,改善剖面作用和驱油效果均优于聚合物驱,能在一定程度上改善层状非均质油藏的吸水剖面,从而能够较大幅度提高层状非均质油藏的采收率.
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