新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (4): 452-455.

• 油藏工程 • 上一篇    下一篇

微生物对油气渗流影响的研究

伊向艺1, 卢渊1, 王惠2   

  1. 1.成都理工大学 油气藏地质及开发工程国家重点实验室, 成都 610059;
    2.中国石油 长庆油田分公司 油气工艺研究院, 西安 710021
  • 收稿日期:2005-11-07 修回日期:2005-12-19 出版日期:2006-08-01 发布日期:2020-10-19
  • 作者简介:伊向艺(1961-), 女, 乌鲁木齐人, 副教授, 油气田开发,(Tel) 028-84079006(E-mail) yxy610059@yahoo.com.cn.

An Analysis of Effect of Microorganism on Hydrocarbon Seepage

YI Xiang-yi1, LU Yuan1, WANG Hui2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chendu University of Technology, Chengdu, Sichuan 610059, China;
    2. Research Institute of Oilfield Technology, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710021, China
  • Received:2005-11-07 Revised:2005-12-19 Online:2006-08-01 Published:2020-10-19

PDF

204

摘要： 微生物采油是将生物学与油田开发技术相结合、促使低渗透油藏改变油层内和油层间矛盾、提高原油采收率的一项新技术。它以其成本低廉、工艺简单、符合环保要求等优势,成为油田开发后期增产的重要措施之一。采油微生物具有自身的优势,有利于油气渗流及提高采收率,尤其是微生物能改变岩石润湿性、改善油气运移、乳化原油降低表面张力,微生物及代谢产物还对原油具有降粘作用,对地层水产生有利影响,提高波及系数。研究认为,油藏条件下微生物也有其负面影响,如菌体对储集层渗透率的影响、微生物的生成物引起地层堵塞、硫化铁的影响、微生物的生化作用等。

关键词: 微生物采油, 渗流, 研究

Abstract: Microbial enhanced oil recovery (MEOR) is a new technique combining with biology and oilfield development technology, by which EOR of low permeability reservoirs could increase through improving the in-layer and interlayer contradictions. MEOR, as one of important stimulation measures at late stage of oilfield development, is characterized by low cost, simple operation and according with the demand of environment protection, etc. The effects of MEOR include as follows: being favorable to oil-gas percolation, changing wettability of rocks, improving hydrocarbon migration, reducing surface tension of emulsified oil, decreasing crude viscosity and improving sweep efficiency, etc. Meanwhile, its negative influences under the reservoir conditions should be recognized such as influence of microorganism on reservoir permeability, influence of the products of microorganism on formation plug, influence of iron sulfides precipitation and biochemical affection of microorganism.

Key words: MEOR, percolation, seepage, research, study

中图分类号: