Mechanism of enhanced oil recovery using microorganisms consuming crude oil

doi:10.7623/syxb200606022

Editorial office of ACTA PETROLEI SINICA ›› 2006, Vol. 27 ›› Issue (6): 84-88,92.DOI: 10.7623/syxb200606022

• Oil Field Development • Previous Articles Next Articles

Mechanism of enhanced oil recovery using microorganisms consuming crude oil

Jing Guicheng¹, Guo Shangping², Yu Li¹

1. Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
2. PetroChina Exploration and Development Research Institute, Beijing 100083, China

Received:2006-01-27 Revised:2006-05-16 Online:2006-11-25 Published:2010-05-21

原油碳源微生物自动寻的提高原油采收率机理

景贵成¹, 郭尚平², 俞理¹

1. 中国科学院渗流流体力学研究所河北廊坊 065007;
2. 中国石油勘探开发研究院北京 100083

作者简介:景贵成,男,1976年1月生,2005年获中国科学院研究生院工学博士学位,主要从事油气田开发及三次采油工作.E-mail:jingguicheng@sohu.com
基金资助:
中国石油天然气股份有限公司重点科技攻关项目(030121-1)“微生物采油技术研究”部分成果

Abstract

Abstract: The visualized experiments were used to study the mechanism of enhanced oil recovery using three kinds of microorganisms consuming crude oil.The microorganisms consuming crude oil have a tendency to migrate directionally towards crude oil and closely contact with crude oil.The "automatic target seeking" phenomenon of the microorganism consuming crude oil consequently resulted in high concentration of microbes around crude oil.Simulation test showed that high-concentration microbes and the metabolic products could act on crude oil,which was favorable to drive remaining oil.Some suggestions for enhancing oil recovery using microorganisms consuming crude oil are presented.

Key words: microorganisms consuming crude oil, directional migration, enhanced oil recovery, local microbial enrichment, oil displacement mechanism, experimental study

摘要： 应用可视化实验观测方法,对3种原油碳源微生物提高原油采收率的机理进行的研究发现,原油碳源微生物有向原油定向运移并直接接触原油的“自动寻的”功能,并使原油碳源处菌群高度富集。这种自动寻的运移是原油碳源微生物提高原油采收率的基础。实验发现,在任何时候,原油碳源处的菌浓度比其他各处高出5~6个数量级。距原油碳源越远,菌浓度越低,其代谢产物浓度分布规律与菌浓度分布规律相符。微观模拟实验表明,高浓度的菌群及其大量代谢产物协同作用于原油碳源有利于剩余油启动。依据所得规律,对应用原油碳源微生物提高采收率的生产模式提出了建议。

关键词: 原油碳源微生物, 定向运移, 提高原油采收率, 菌群局部富集, 驱油机理, 实验研究

CLC Number:

TE357.9

Jing Guicheng, Guo Shangping, Yu Li. Mechanism of enhanced oil recovery using microorganisms consuming crude oil[J]. Editorial office of ACTA PETROLEI SINICA, 2006, 27(6): 84-88,92.

景贵成, 郭尚平, 俞理. 原油碳源微生物自动寻的提高原油采收率机理[J]. 石油学报, 2006, 27(6): 84-88,92.

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Mechanism of enhanced oil recovery using microorganisms consuming crude oil

原油碳源微生物自动寻的提高原油采收率机理

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