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简略地介绍了微生物采油技术的发展概况、增产作用机理及华北油田微生物采油技术的应用情况，通过30口可对比试验井的效果分析，总结出了微生物单井吞吐采油的适用范围、见效特征及选井中应注意的几个问题，指出室内菌种筛选技术是微生物采油成功的关键，微生物注入量、注入周期的合理确定是影响经济效益的重要因素。微生物单井吞吐是小断块、连通状况差、地层温度低的“土豆”油藏很好的增产措施。
Briefly introduced the development of microbial oil recovery technology, the mechanism of stimulation effect and the application of microbial recovery technology in Huabei Oilfield. Through the analysis of the effect of 30 comparative wells, this paper summarized the applicable scope, Several problems that should be noticed in well selection are pointed out. It is pointed out that the screening technology of indoor bacteria is the key to the success of microbial recovery. The reasonable injection of microorganisms and injection cycle are the important factors affecting the economic benefits. Microbial single well huff and puff is a small block, poor connectivity, low formation temperature, “potato” reservoir good stimulation measures.