根据桩西油田的油井特点，选用两种微生物菌种Ｐａｒａ－Ｂａｘ．ｓ和Ｂｅｎ－Ｂａｃ。介绍了这两种微生物菌种的作用机理，应用条件。通过１０口油井的现场应用，表明两种微生物具有较好的清蜡、防蜡作用，对碳链具有一定的分解作用，增产节能效果明显，有效率８０％，平均单井日增油２．１ｔ，增幅达２４．６％，累计增油２１８１ｔ，有效期长，产出投入比为３．９∶１，该项试验首创了微生物采油处理深井、高温，高含蜡原油的成功经验。 According to the characteristics of oil wells in the West of the pile, two kinds of microbial strains Para-Bax were selected. s and Ben-Bac. Introduced the mechanism of these two kinds of microbial strains, application conditions. The field application of 10 wells shows that the two microorganisms have good functions of wax removal and wax prevention, and have a certain decomposition effect on the carbon chain. The production efficiency and energy saving effect are obvious, with an effective rate of 80% and an average daily oil increase of 2%. 1t, an increase of 24.6%, an increase of oil 2181t, a long period of validity, the output ratio of 3.9: 1, the test pioneered the successful experience of microbial recovery of deep well, high temperature, high waxy crude oil.