针对大庆外围高含水敖古拉油田剩余油潜力大和水驱进一步挖潜可采储量小的问题,提出了外围高含水油田微生物马油技术.评价了外围油藏条件下微牛物菌种的适应性及性能,利用物理模型研究了其驱油效果.室内研究结果表明,筛选的菌种能够适应敖占拉油田储层环境,具有改善原油性质的作用,并取得较好的驱油效果.当油层温度60℃时,微牛物驱比水驱提高采收率5到8个百分点,敖古拉油田实施微牛物驱油技术是可行的.%Aiming at the great potential of residual oil but a small recoverable reserve by further waterflood in peripheral high water cut Aogula Oilfield, MEOR ( microbial enhanced oil recovery) technology in peripheral high water cut oilfield has been proposed. After evaluating the adaptability and performance of microbe strains under the peripheral reservoir condition, the displacement effect has been analyzed through physical model. The result of laboratory research shows that the selected strain can adapt to the reservoir environment of Aogula Oilfield and can be used to improve the properties of crude oil, and a good displacement effect has been obtained. When the reservoir temperature is 60 ℃, the recovery factor of MEOR is 5 to 8 percent higher than that of waterflooding, therefore it is feasible to carry out MEOR in Aogula Oilfield.
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