朝阳沟油田老区经过二十余年的开发,在油田的一类区块出现含水上升速度加快、自然递减率加大的开发矛盾,而对于油层条件较差的二、三类区块,由于储层物性及原油物性较差导致单井产量低、开发效果差。通过探索研究应用适用于朝阳沟油田的微生物采油技术,在试验区实现了提高单井产能、控制含水上升和提高采收率的目的。 After more than 20 years of development in the old area of ​​Chaoyanggou Oilfield, development contradictions of speeding up and natural decreasing rate of water cut appeared in the first type of blocks in the oilfield. For the second and third types of blocks with poor reservoir conditions, Poor physical properties and crude oil properties led to low single-well production and poor development results. Through the exploration and application of microbial oil recovery technology suitable for Chaoyanggou oil field, the goal of improving single-well productivity, controlling water-cut and enhancing oil recovery was realized in the experimental area.