生物技术通报 ›› 2016, Vol. 32 ›› Issue (9): 83-92.doi: 10.13560/j.cnki.biotech.bull.1985.2016.09.012

• 技术与方法 • 上一篇    下一篇

渤海N油田油藏内源微生物群落结构分析

王大威1, 张健1, 何春百1, 马挺2, 吕鑫1, 李强1   

  1. 1. 海洋石油高效开发国家重点实验室 中海油研究总院,北京 100028; 2. 南开大学生命科学学院分子微生物学与技术教育部重点实验室,天津 300071
  • 收稿日期:2015-11-16 出版日期:2016-09-25 发布日期:2016-10-10
  • 作者简介:王大威,男,工程师,研究方向:微生物采油等三次采油技术;E-mail:wangdw3@cnooc.com.cn
  • 基金资助:
    十一五国家科技重大专项(2011ZX05024-004)

Research on Population Structures and Distribution Characteristics of Indigenous Microorganisms in Bohai Oil Field N

WANG Da-wei, ZHANG Jian, HE Chun-bai, MA Ting, LÜ Xin, LI Qiang   

  1. 1. State Key Laboratory of Offshore Oil Exploitation,China National Offshore Oil Corporation(CNOOC)Research Institute,Beijing 100028; 3. Key Laboratory of Molecular Microbiology and Technology(Ministry of Education),College of Life Science,Nankai University,Tianjin 300071
  • Received:2015-11-16 Published:2016-09-25 Online:2016-10-10

摘要: 利用变性梯度凝胶电泳(denaturing gradient gel electrophoresis,DGGE)技术分析渤海N油田注水和未注水油藏中细菌和古菌群落结构组成及分布特征,试分析注水过程对油藏微生物群落丰度和种群的影响,为开展目标油田本源微生物采油试验提供技术支持。结果显示,注水采油井中细菌丰度和种类明显高于未注水采油井,其中注水采油井中的细菌主要为固氮螺菌属(Azospira sp.)、铜绿假单胞菌(Pseudomonas sp.)、陶厄氏菌属(Thauera sp.);注水井古菌的丰度和种类与未注水井也存在一定差 异,主要为热自养甲烷热杆菌(Methanothermobacter thermautotrophicus)、甲烷鬃毛菌属(Methanosaeta)、嗜泉古菌(Crenarchaeote)。注水井和未注水井中的细菌、古菌种类分布有限,但丰度较高,主要为提高原油采收率有益的采油菌种,显示该区块具备开展本源微生物微生物采油技术实施的条件。

关键词: 注水油藏, 变性梯度凝胶电泳, 细菌, 古菌

Abstract: Denaturing gradient gel electrophoresis(DGGE)method was used to analyze the structures of microorganism population in water injection wells and no-water injection wells of an oil reservoir in Bohai oil field N,and investigate the process effect of water injection to the abundance and population of microbial communities in the reservoir,aiming at providing technical support for the field test of indigenous microorganism enhanced oil recovery. The results showed that bacterial abundance and species in water injection wells were significantly higher than that in no-water injection wells,main bacteria in water injection well were Azospira sp.,Pseudomonas sp.,Thauera sp.. The species and abundance of archaea in water injection wells also presented differences from no-water injection wells,main archaea were Methanothermobacter thermautotrophicus,Methanosaeta,and Crenarchaeote. Species distribution of bacteria and archaea in water injection wells and no-water injection wells were limited,but their abundances were high,and which were mainly beneficial bacteria increasing oil recovery,indicating that this block possesses the condition to implement the microbial enhanced oil recovery technology by indigenous microorganisms.

Key words: water injection oil reservoir, denaturing gradient gel electrophoresis, bacteria, archaea