Potential Microorganisms for Prevention of Paraffin Precipitation in a Hypersaline Oil Reservoir
详细信息 查看全文
- 作者：Fan Zhang ; Yuehui She ; Ibrahim M. Banat ; Lujun Chai ; Shaojing Yi ; Gaoming Yu ; Dujie Hou
- 刊名：Energy & Fuels
- 出版年：2014
- 出版时间：February 20, 2014
- 年：2014
- 卷：28
- 期：2
- 页码：1191-1197
- 全文大小：357K
- ISSN：1520-5029
文摘
Based on 454 pyrosequencing of 16S rRNA gene amplicons, microbial communities in samples collected from seven wells, six of which had positive paraffin deposition reduction and one with negative paraffin deposition reduction upon a microbial treatment designed for the prevention of paraffin precipitation, were analyzed. Microbial communities鈥?structures were significantly different for the samples from the negative well and the positive wells. Microbes affiliated with Diaphorobacter belonging to 尾-Proteobacteria were predominant in the negative well, While 纬-Proteobacteria-affiliated microbes of Pseudomonas and Enterobacter and Firmicute-affiliated Bacillus were shared and dominant in the positive wells. Microbes shared in the positive wells could be considered as potential candidates for investigations into microbial paraffin control. In addition, microbial activity of hydrocarbon-degradation and microbial products such as biosurfactants were proposed to be the main potential mechanisms for the microbial treatment for the prevention of paraffin precipitation.