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Research progress in methanogenic degradation of crude oil in depleted subsurface oil reservoirs
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Hengwu DING, Zhuo ZHOU, Lei CHENG*
Acta Microbiologica Sinica | 2025, 65(6) : 2338 - 2352
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Acta Microbiologica Sinica | 2025, 65(6): 2338-2352
• Review •
Research progress in methanogenic degradation of crude oil in depleted subsurface oil reservoirs
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Hengwu DING, Zhuo ZHOU, Lei CHENG*
Affiliations
  • Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China
Published: 2025-06-04
Outline
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China has considerable demands for crude oil and natural gas. After oil recovery by conventional methods (such as water flooding, gas flooding, chemical flooding, and microbial enhanced oil recovery), more than 50% of the crude oil remains inaccessible in subsurface oil reservoirs, unable to be recovered by conventional flooding techniques. The residual crude oil could be converted into natural gas by anaerobic microorganisms, which makes it exploitable as biogas. This innovative approach shows promise as a microbial enhanced energy recovery technology for exploiting residual crude oil in depleted oil reservoirs. This review summaries the historical development and recent advancements in the methanogenic degradation of crude oil and makes an outlook on the future research directions to facilitate the industrial application of this approach.

depleted oil reservoir  /  petroleum hydrocarbon  /  anaerobic degradation  /  methanogenesis
Hengwu DING, Zhuo ZHOU, Lei CHENG. Research progress in methanogenic degradation of crude oil in depleted subsurface oil reservoirs[J]. Acta Microbiologica Sinica, 2025 , 65 (6) : 2338 -2352 .
Funding
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  • National Natural Science Foundation of China(92351301)
  • National Natural Science Foundation of China(32325002)
  • Agricultural Science and Technology Innovation Project of the Chinese Academy of Agriculture Science(CAAS-ASTIP-2021-BIOMA)
  • Science and Technology Program of Sichuan Province(2024NSFTD0020)
Appendix
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Year 2025 volume 65 Issue 6
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138
64
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Article Info
  • Receive Date：2024-09-26
  • Online Date：2026-02-07
  • Published：2025-06-04
Article Data
Affiliations
History
  • Received：2024-09-26
  • Accepted：2024-11-12
Funding
National Natural Science Foundation of China(92351301)
National Natural Science Foundation of China(32325002)
Agricultural Science and Technology Innovation Project of the Chinese Academy of Agriculture Science(CAAS-ASTIP-2021-BIOMA)
Science and Technology Program of Sichuan Province(2024NSFTD0020)
Affiliations
    Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, China

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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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