RESEARCH ARTICLE


The Application of Microbial Enhanced Oil Recovery in Chaoyanggou Daqing Low-Permeability Oilfield



Wu Xiaolin*, 1, 2, Hou Zhaowei2, Dou Xumou2, Li Wei2, Wang Rui2, Wu Xiaolei1
1 College of Engineering, Peking University, Beijing 100871, China;
2 Exploration and Development Institute of Daqing Oil Field, Daqing 163712, China


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© 2012 Xiaolin et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: * Address correspondence to this author at the College of Engineering, Peking University, Beijing 100871, China; Tel: 86-0459 5508 647; E-mail: wuxldq@petrochina.com.cn


Abstract

In order to develop the peripheral part of Daqing oilfield, one mixed bacteria system was screened and used for microbial flooding on Microbial Enhanced Oil Recovery (MEOR) process in Daqing low permeability oilfield where there are huge resource potentials but many disadvantageous conditions. From 2004 to 2009, Microbial flooding field test was conducted in Chaoyanggou oilfield. In 2004, Microbial flooding pilot test with 2 injectors and 10 producers was carried out. Seven out of 10 oil wells showed effective results, with 14.5 thousand tons of accumulative incremental oil. In October 2009, expanding field test with 9 injectors and 24 producers was carried out in the same block. By now, 15 oil wells have shown good effect. The daily oil production increased from 32.4 tons to 43.2 tons and the incremental oil amounts to 9370 tons. The microbial flooding results showed that wells along the main channel sand and developed fracture zones had a better response.

Keywords: Low permeability reservoir, microbial enhanced oil recovery, microbial flooding.