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Title:
Conversion of Petroleum to Methane by the Indigenous Methanogenic Microorganisms for EOR in Heavy Oil Reservoir
Author: Xia WJ; Shen WJ(沈伟军); Yu L; Zheng CG; Yu WC; Tang YC
Source: Applied Energy
Issued Date: 2016-03
Volume: 171, Issue:2016, Pages:646-655
Abstract:

Microbial enhanced oil recovery has been well acknowledged and becoming an advanced technology for oil recovery. Compared with current techniques, a newly technical strategy of the in-situ heavy oil gasification to methane for oil viscosity reduction was proposed and successfully proved via enriching the methanogenic consortia from the brine of oil reservoir with heavy oil as carbon source. During 200 days anaerobic culturing, 2.34 g of heavy oil was degraded coupling with 1514 lmol of methane production. Phylogenetic diversity analysis showed that the enriched consortia composed with sequences affiliated with the Firmicutes, Proteobacteria, Deferribacteres and Bacteroidetes. The recovered archaeal phylotypes were close to the Methanobacteriales and Methanosarcinales, which could convert the produced small molecules (formic acid and acetic acids) to methane. The viscosity of the degraded heavy oil was reduced by 72.45% at 20 MPa after the dissolution of the produced methane. Core flooding tests finally showed that the oil degradation and methane production by the enriched methanogenic consortia made 14.7% of the tertiary enhanced oil recovery. These results demonstrated a promising and practical strategy of microbial technology on oil recovery by activating the methanogens in heavy oil reservoir.

Keyword: Heavy oil ; Methanogenics ; Biodegradation ; Methane ; Viscosity ; Oil recovery
Language: 英语
Indexed Type: SCI
Corresponding Author: Xia WJ
Correspondent Email: wenjie.xia@peeri.org
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Energy & Fuels ; Engineering
WOS Subject Extended: Energy & Fuels ; Engineering ; Chemical
WOS ID: WOS:000375515500051
ISSN: 0306-2619
Funder: 863 National High Technology Research and Development Program of China (2013AA064402) ; National Natural Science Foundation of China Grant (D308/41573068)
Department: LMFS海洋土力学(LHO)
Classification: 一类
First Institution (Yes or Not): False
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/60879
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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description.institution: 1.Power Environmental Energy Research Institute, CA 91722, USA
2.Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, PR China
3.Petroleum Exploration and Production Research Institute, SINOPEC, PR China
4.College of Chemistry and Environmental Engineering, Yangtze University, PR China

Recommended Citation:
Xia WJ,Shen WJ,Yu L,et al. Conversion of Petroleum to Methane by the Indigenous Methanogenic Microorganisms for EOR in Heavy Oil Reservoir[J]. Applied Energy,2016-03-01,171(2016):646-655.
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