LAPSE:2023.16021
Published Article
LAPSE:2023.16021
Numerical Simulation Analysis of Heating Effect of Downhole Methane Catalytic Combustion Heater under High Pressure
March 2, 2023
Abstract
The hot exhaust gas generated by a downhole combustion heater directly heats the formation, which can avoid the heat loss caused by the injection of high-temperature fluid on the ground. However, if the temperature of the exhaust gas is too high, it may lead to the carbonization of organic matter in the formation, which is not conducive to oil production. This paper proposes the use of low-temperature catalytic combustion of a mixture of methane and air to produce a suitable exhaust gas temperature. The simulation studies the influence of different parameters on the catalytic combustion characteristics of methane and the influence of downhole high-pressure conditions. The results show that under high-pressure conditions, using a smaller concentration of methane (4%) for catalytic combustion can obtain a higher conversion efficiency (88.75%), and the exhaust temperature is 1097 K. It is found that the high-pressure conditions in the well can promote the catalytic combustion process of the heater, which proves the feasibility of the downhole combustion heater for in situ heating of unconventional oil and gas reservoirs.
The hot exhaust gas generated by a downhole combustion heater directly heats the formation, which can avoid the heat loss caused by the injection of high-temperature fluid on the ground. However, if the temperature of the exhaust gas is too high, it may lead to the carbonization of organic matter in the formation, which is not conducive to oil production. This paper proposes the use of low-temperature catalytic combustion of a mixture of methane and air to produce a suitable exhaust gas temperature. The simulation studies the influence of different parameters on the catalytic combustion characteristics of methane and the influence of downhole high-pressure conditions. The results show that under high-pressure conditions, using a smaller concentration of methane (4%) for catalytic combustion can obtain a higher conversion efficiency (88.75%), and the exhaust temperature is 1097 K. It is found that the high-pressure conditions in the well can promote the catalytic combustion process of the heater, which proves the feasibility of the downhole combustion heater for in situ heating of unconventional oil and gas reservoirs.
Record ID
Keywords
downhole heating technology, in situ conversion, oil shale, unconventional oil and gas resources
Subject
Suggested Citation
Wang Y, Wang Y, Deng S, Li Q, Gu J, Shui H, Guo W. Numerical Simulation Analysis of Heating Effect of Downhole Methane Catalytic Combustion Heater under High Pressure. (2023). LAPSE:2023.16021
Author Affiliations
Wang Y: State Key Laboratory of Shale Oil and Gas Enrichment Mechanism and Effective Development, Beijing 100083, China; State Center for Research and Development of Oil Shale Exploitation, Beijing 100083, China
Wang Y: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Deng S: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an [ORCID]
Li Q: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Gu J: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Shui H: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Guo W: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Wang Y: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Deng S: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an [ORCID]
Li Q: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Gu J: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Shui H: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Guo W: College of Construction Engineering, Jilin University, Changchun 130021, China; National-Local Joint Engineering Laboratory of In Situ Conversion, Drilling and Exploitation Technology for Oil Shale, Jilin University, Changchun 130021, China; Provincial an
Journal Name
Energies
Volume
15
Issue
3
First Page
1186
Year
2022
Publication Date
2022-02-06
ISSN
1996-1073
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PII: en15031186, Publication Type: Journal Article
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LAPSE:2023.16021
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https://doi.org/10.3390/en15031186
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