微生物采油技术具备施工成本低、施工工序简单、对各种类型油藏适应性强、增产效果持续、不污染环境、不损害地层等优点,在国外已投入工业性应用,国内也开始进行研究并投入矿场试验。近年来,胜利油田在多个采油厂的几十口井中进行了矿场试验,其中相当一部分井的增产效果显著。微生物提高原油采收率的机理一是细菌的直接作用。细菌通过在油层孔隙空间中生长繁殖占据孔隙空间而驱出原油,并通过降解原油,使原油粘度降低,原油流度增加; Microbial oil recovery technology has the advantages of low construction cost, simple construction procedure, strong adaptability to various types of reservoirs, continuous production increase effect, no pollution to the environment, no damage to the formation, etc., and has been put into industrial application in foreign countries. Into the mine test. In recent years, Shengli Oilfield has carried out field tests in dozens of wells in several oil production plants, of which a considerable number of wells have produced remarkable results. The mechanism by which microorganisms improve oil recovery is the direct effect of bacteria. Bacteria drive out the crude oil by growing and multiplying in the pore space of the reservoir and occupying the pore space. By degrading the crude oil, the viscosity of the crude oil decreases and the crude oil flow increases.