Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application
Conventional heavy oil has abundant reserves and low recovery efficiency in offshore oilfields. Autogenous heat technology uses 2-3 kinds of inorganic salt solution to produce inert gas and release a lot of heat under the action of a catalyst. It is applied to improve heavy oil recovery of the offsh...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/4988318 |
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| _version_ | 1832549686710370304 |
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| author | Yanping Sun Chengsheng Wang Jun Sun Shuliang Ren Hua Peng Yueyue Fang Fangxue Xu |
| author_facet | Yanping Sun Chengsheng Wang Jun Sun Shuliang Ren Hua Peng Yueyue Fang Fangxue Xu |
| author_sort | Yanping Sun |
| collection | DOAJ |
| description | Conventional heavy oil has abundant reserves and low recovery efficiency in offshore oilfields. Autogenous heat technology uses 2-3 kinds of inorganic salt solution to produce inert gas and release a lot of heat under the action of a catalyst. It is applied to improve heavy oil recovery of the offshore oilfield. This paper applies experimental schemes such as viscosity reduction rate evaluation, heat conditions, gas production conditions, reaction rate control, and effect of environmental factors. This paper evaluates the performance of the autogenous heat system, optimizes the process parameters, and designs the process scheme and construction scheme according to the oil well production. This paper researches an autogenous heat system with nontoxic and high heat production and optimizes the catalyst type, concentration, and time to reach exothermic peak. When the concentration of the thermogenic agent is 1.5 mol/L in the autogenous heat system, the range of temperature rise is 67°C, which achieves the target requirement of more than 50°C. Field application shows that the autogenous heat system can effectively reduce the viscosity of heavy oil, dissolve solid paraffin, clean organic scale, improve reservoir permeability, and increase heavy oil production. This paper applies autogenous heat technology to improving the efficiency of heavy oil recovery of the offshore oilfield. Research conclusions show that the autogenous heat system can effectively reduce the viscosity of heavy oil, improve reservoir permeability, and increase heavy oil production. |
| format | Article |
| id | doaj-art-da156c08d4e04dd79bba2963cdb64d6e |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-da156c08d4e04dd79bba2963cdb64d6e2025-02-03T06:10:47ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/49883184988318Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and ApplicationYanping Sun0Chengsheng Wang1Jun Sun2Shuliang Ren3Hua Peng4Yueyue Fang5Fangxue Xu6CNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaCNOOC EnerTech-Drilling & Production Co., Tianjin 300452, ChinaConventional heavy oil has abundant reserves and low recovery efficiency in offshore oilfields. Autogenous heat technology uses 2-3 kinds of inorganic salt solution to produce inert gas and release a lot of heat under the action of a catalyst. It is applied to improve heavy oil recovery of the offshore oilfield. This paper applies experimental schemes such as viscosity reduction rate evaluation, heat conditions, gas production conditions, reaction rate control, and effect of environmental factors. This paper evaluates the performance of the autogenous heat system, optimizes the process parameters, and designs the process scheme and construction scheme according to the oil well production. This paper researches an autogenous heat system with nontoxic and high heat production and optimizes the catalyst type, concentration, and time to reach exothermic peak. When the concentration of the thermogenic agent is 1.5 mol/L in the autogenous heat system, the range of temperature rise is 67°C, which achieves the target requirement of more than 50°C. Field application shows that the autogenous heat system can effectively reduce the viscosity of heavy oil, dissolve solid paraffin, clean organic scale, improve reservoir permeability, and increase heavy oil production. This paper applies autogenous heat technology to improving the efficiency of heavy oil recovery of the offshore oilfield. Research conclusions show that the autogenous heat system can effectively reduce the viscosity of heavy oil, improve reservoir permeability, and increase heavy oil production.http://dx.doi.org/10.1155/2021/4988318 |
| spellingShingle | Yanping Sun Chengsheng Wang Jun Sun Shuliang Ren Hua Peng Yueyue Fang Fangxue Xu Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application Geofluids |
| title | Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application |
| title_full | Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application |
| title_fullStr | Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application |
| title_full_unstemmed | Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application |
| title_short | Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application |
| title_sort | study on autogenous heat technology of offshore oilfield experiment research process design and application |
| url | http://dx.doi.org/10.1155/2021/4988318 |
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