生物酶驱提高采收率技术试验研究

Testing research of biological enzyme flooding on enhancing oil recovery

通过对生物酶技术的介绍,阐述了生物酶驱油机理,以及生物酶驱的特点和选井条件,并通过现场试验井组与对比井组的比较,评价了生物酶驱提高采收率技术的应用效果。试验井组中注水井注入压力下降,连通油井井组递减率得到控制,地层压力得到恢复,提高了井组采收率。

Through the introduction of biological enzyme technology, the mechanism of oil displacement, the characteristics of biological enzyme and the well selection conditions have been discussed in this paper. After well comparison between pilot testing group and contrast group, the application effect of biological enzyme flooding on enhancing oil recovery has been evaluated. In the pilot testing well group, the injecting pressure of water injection well decreased and the declining rate of connected oil well groups has been controlled. And therefore, the formation pressure has been restored and the recovery of well groups has been increased.