Impact of an indigenous microbial enhanced oil recovery field trial on microbial community structure in a high pour-point oil reservoir

被引:0
作者
Fan Zhang
Yue-Hui She
Hua-Min Li
Xiao-Tao Zhang
Fu-Chang Shu
Zheng-Liang Wang
Long-Jiang Yu
Du-Jie Hou
机构
[1] China University of Geosciences (Beijing),The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, Ministry of Education, China; School of Energy Resources
[2] Yangtze University,College of Chemistry and Environmental Engineering
[3] Huazhong University of Science and Technology,College of Life Science and Technology
[4] Beijing Bioscience Research Center,undefined
来源
Applied Microbiology and Biotechnology | 2012年 / 95卷
关键词
Oil reservoir; Indigenous microbial enhanced oil recovery (MEOR); Microbial community; Stimulated microorganisms;
D O I
暂无
中图分类号
学科分类号
摘要
Based on preliminary investigation of microbial populations in a high pour-point oil reservoir, an indigenous microbial enhanced oil recovery (MEOR) field trial was carried out. The purpose of the study is to reveal the impact of the indigenous MEOR process on microbial community structure in the oil reservoir using 16Sr DNA clone library technique. The detailed monitoring results showed significant response of microbial communities during the field trial and large discrepancies of stimulated microorganisms in the laboratory and in the natural oil reservoir. More specifically, after nutrients injection, the original dominant populations of Petrobacter and Alishewanella in the production wells almost disappeared. The expected desirable population of Pseudomonas aeruginosa, determined by enrichment experiments in laboratory, was stimulated successfully in two wells of the five monitored wells. Unexpectedly, another potential population of Pseudomonas pseudoalcaligenes which were not detected in the enrichment culture in laboratory was stimulated in the other three monitored production wells. In this study, monitoring of microbial community displayed a comprehensive alteration of microbial populations during the field trial to remedy the deficiency of culture-dependent monitoring methods. The results would help to develop and apply more MEOR processes.
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页码:811 / 821
页数:10
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