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高盐低渗油藏内源微生物驱油潜力实验研究

Wen-hong LI, Shan WANG,Yong-qiang ZHANG,Hao SONG,Zhong-yuan XIANG,Zhong-zhi ZHANG,Fei-yan XU

Chemistry & Bioengineering（2014）

Cited 23|Views1
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Abstract
结合靖安油田五里湾一区油藏高盐低渗特点,对其内源微生物进行了普查和分析,结果表明内源微生物类型和数量具有多样化的特点.以五里湾一区油井采出液为激活对象,在初步筛选营养成分的基础上,确定了碳源、氮源、磷源及其大致浓度,采用PB、最陡爬坡和响应面实验方法,以微生物生长和代谢为筛选条件,对影响微生物生长效果的因素进行了优化和评价,得到了最佳激活体系配方.该激活体系能够高效地激活该油藏中的内源微生物,并显著降低发酵液的表面张力,表明高盐低渗的五里湾一区油藏具有较大的内源微生物驱油提高原油采收率潜力.
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Key words
indigenous microbial flooding,low permeability oilfield,high salt
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