Isolating, identifying and evaluating of oil degradation strains for the air-assisted microbial enhanced oil recovery process.

ABSTRACT: Due to the inefficient reproduction of microorganisms in oxygen-deprived environments of the reservoir, the applications of microbial enhanced oil recovery (MEOR) are restricted. To overcome this problem, a new type of air-assisted MEOR process was investigated. Three compounding oil degradation strains were screened using biochemical experiments. Their performances in bacterial suspensions with different amounts of dissolved oxygen were evaluated. Water flooding, microbial flooding and air-assisted microbial flooding core flow experiments were carried out. Carbon distribution curve of biodegraded oil with different oxygen concentration was determined by chromatographic analysis. The long-chain alkanes are degraded by microorganisms. A simulation model was established to take into account

SUBMITTER: Cheng M 

PROVIDER: S-EPMC7834137 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature