MICROBIAL ENHANCED OIL RECOVERY METHOD IN LOW PERMEABILITY RESERVOIR

摘要

A microbial enhanced oil recovery method in low permeability reservoir includes the following steps:(1)fracturing in low permeability reservoir;(2) performing the microbial enhanced oil recovery by injecting the microorganism and nutrient to the reservoir through the fracture. The method combines the reservoir fracturing with microbial enhanced oil recovery. The metabolic function of microorganism can improve the seepage ability of oil and promote the stable output of oil well.