五里湾长6油藏聚表二元驱研究与应用

摘要

Wuliwan is a typical low porosity and low permeability reservoir,with the exten- sion of oilfield development time, Oil well water rising velocity continues to accelerate, Wa- terflood efficiency decrease, the steady production of oil field is difficult.In order to delay the water rising velocity,Improve the ultimate recovery,To carry out the polymer and surfactant combined flooding technology research.Through the technology of profile control and oil dis- placement technology combined with the use of,From improving the swept volume,and in- creasing the oil displacement efficiency to Increasing oil production.The technology through the indoor experiment, And selected three wells of Wuliwan to carry out the test, The experi- mental results provide reference,as the polymer and surfactant combined flooding technique in low permeability reservoir.%五里湾是典型的低孔低渗油藏，并随着该油田开发时间的延长，油井含水上升速度不断加快，水驱油效率降低，油田稳产难度加大。为了有效延缓含水上升速度，提高油井最终采收率，开展了聚合物与表面活性剂组合调驱技术研究。拟通过调剖技术和驱油技术结合运用，从提高波及体积、增加洗油效率两方面综合增油。该技术通过全面的室内实验，并选取五里湾一区三口水井开展该项试验，试验结果为聚合物与表面活性剂组合调驱技术在低渗透油藏的运用提供试验参考。