Development situation of microbe oil recovery technology

Biological technology especially microbial enhanced oil recovery technology attracts the tremendous attention of the petroleum engineers.The paper briefly presents the development overview of microbial enhanced oil recovery (MEOR)technology,introduces emulsity-carry,strip of oil film,biogas and its concentrate on local interface, describes micro-organism selection and criterion of praise and points that MEOR can improve the recovery ratio ef- fectively.The application proves that the technology has better development prospects.