Selected Indonesian Microbes Potentials For MEOR

摘要

Oil recovery can be increased through the activities ofrnmicrobes in a process known as Microbial Enhanced OilrnRecovery (MEOR). MEOR technology has been implementedrnin a number of oil producing companies and has proven tornhave good prospect, environmental friendly and low cost.rnThe microbes which proliferate in Indonesia oil fieldsrnshould be subjected to laboratory identification. Samples ofrnformation water, oil, and soil were taken from various oilrnfields. These oil fields were selected on account of theirrnreservoir temperatures which promise optimum growth ofrnmicrobes. In order that MEOR can be applied in these oilrnfields, the microbes existing in their oil wells were isolatedrnand identified.rnBased on the results of isolation and identification activitiesrnseveral indigenous bacteria species were obtained from the oilrnwell environment. The potential of each bacteria species forrnuse in MEOR process depends on their ability to live and growrnin the reservoir environment as well as the bioproductsrnproduced, such as biosurfactant, bioacid, and biosolvent. Thernbioproducts produced depend on the inherent capability of thernisolate as well as the support of the medium andrnenvironmental condition.rnFrom the tests of their capability to grow in hydrocarbons,rnand live in semianaerobic condition, 12 isolates, were selectedrnand some isolates were found to produce such bioproducts.rnThe selected microbes and nutrient have been experimentedrnby using microbial core flooding apparatus. The result hasrngood prospect for implementation in the oil field.