Patent ID: 7484560

Claim:
A process for enhancing the oil recovery from an oil well by proliferation of a microbial consortium at a temperature up to 90° C., the process comprising steps of: a) inoculating the microbial consortium having accession no MTCC S2-001, in a nutrient medium I in the presence of an anaerobic gas mixture of N 2 , CO 2 , H 2 ; b) incubating the microbial consortium of step (a) at a temperature up to 90° C. to obtain seed population of microbial consortium; c) inoculating the seed population of the microbial consortium of step (b) under aseptic conditions into a nutrient medium II to obtain a biological solution; d) injecting the biological solution of step (c) into the oil well, followed by injecting water into the oil well to push the entire biological solution into the pores of the oil well, allowing the microbial consortium to proliferate and dissociate the oil, and e) obtaining enhanced oil recovery from the oil well.