新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (6): 637-639.

• 油藏工程 • 上一篇    下一篇

克拉玛依油田原油中原生生物的特性及应用

于娟, 陈爱华, 陈永立   

  1. 中国石油新疆克拉玛依石化公司炼油化工研究院,新疆克拉玛依 834000
  • 收稿日期:2011-05-11 出版日期:2011-12-01 发布日期:2020-08-20
  • 作者简介:于娟（1970-）,女,山东济南人,工程师,微生物采油,（Tel）0990-6233627（E-mail）lhyyj@petrochina.com.cn.

The Protist of Crude Oils in Karamay Oilfield: Features and Application

YU Juan, CHEN Ai-hua,CHEN Yong-li   

  1. Refining and Petrochemical Research Institute, Karamay Petrochemical Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2011-05-11 Online:2011-12-01 Published:2020-08-20

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摘要： 根据克拉玛依油田稀油区块本源微生物驱油的实验室研究和矿场实验的实际情况以及对稠油区块本源微生物驱油的实验室可行性研究,总结出克拉玛依油田稀油和稠油油藏原生生物的特性和应用价值。相对于稠油区块来说,稀油区块本源微生物含量较低,活性较差。通过对本源微生物进行筛选、培养、重新注入的方法提高原油采收率效果显著,而稠油区块本源微生物含量高,活性好,用直接注入培养基激活本源微生物的方法提高原油采收率效果理想,并同时实现了对高黏度、高钙稠油的乳化降黏和脱钙作用,降黏率达到50%以上,脱钙率达到90%以上。

关键词: 克拉玛依油田, 稀油, 稠油, 原生生物, 提高采收率

Abstract: Based on the lab experiments and field tests of in-situ original microbes drive in light oil blocks and the lab feasibility studies of such a drive in heavy oil blocks in Karamay oilfield, the features and applied values of the protist in light and heavy oil reservoirs in this oilfield are presented. It is suggested that in light oil blocks the content of in-situ original microbes is relatively low, with poor activity, for this reason, the screening, culturing and re-injection of the microbes can notably enhance the oil recovery (EOR) of these reservoirs, while in heavy oil blocks the content of in-situ original microbes is relatively high, with good activity, using direct injection of culture medium to activate such microbes is more ideal for EOR, at the same time, the viscosity-reducing process by emulsification for high-viscosity and high-calcium heavy oil can be realized, with viscosity-reducing rate of over 50% and de-calcium rate of over 90%.

Key words: Karamay oilfield, light oil, heavy oil, protist, in-situ original microbe, EOR

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