【摘要】 本文介绍了吉林油田现场试验研究的历程。建立了采用DNA鉴定用于微生物提高原油采收率的微生物的新技术。筛选出了用于现场试验的有用的微生物。通过就地注入糖蜜微生物单井吞吐与驱替试验,考察了油藏中被激活细菌的行为,原油收率,含水率及原油的粘度。代谢生物多糖的CJF-002用于现场试验中的微生物中最好的菌种。因为它可以使用糖蜜作为营养源,产生少量的CO2及大量的水不溶性的生物聚合物。它在油藏的代谢行为表明:CJF-002具有微生物提高原油采收率良好潜力。更多还原

【Abstract】 This paper describes the experience of Jilin oilfield trials for Microbial Enhanced Oil Recovery (MEOR). A new technique to identify microbes with DNA for MEOR has been established, and useful microbes selected for use in field trials. Behaviors of bacteria activated in the reservoir, oil recovery and water cut, and the viscosity of crude oil produced through huff & puff testing and flooding with molasses-injection tests, have been investigated in situ. CJF-002, which produces biopolysaccharide, is the best among the microbes used for field trials, as it can use molasses as nutrient and produce a small quantity of CO2 and a mass of water-insoluble biopolymer. The metabolic behavior in the reservoir showed that CJF-002 had a good potentiality for MEOR.更多还原