Optimizing the development plan for oil production and CO2 storage in target oil reservoir
Carbon dioxide enhanced oil recovery (CO2-EOR) technology is used for oil production and CO2 storage in reservoirs. Methods are being constantly developed to optimize oil recovery and CO2 storage during the CO2 displacement process, especially for low-permeability reservoirs under varying geological...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-06-01
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| Series: | Energy Geoscience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666759225000265 |
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| author | Xiliang Liu Hao Chen Yang Li Weiming Cheng Yangwen Zhu Hongbo Zeng Haiying Liao |
| author_facet | Xiliang Liu Hao Chen Yang Li Weiming Cheng Yangwen Zhu Hongbo Zeng Haiying Liao |
| author_sort | Xiliang Liu |
| collection | DOAJ |
| description | Carbon dioxide enhanced oil recovery (CO2-EOR) technology is used for oil production and CO2 storage in reservoirs. Methods are being constantly developed to optimize oil recovery and CO2 storage during the CO2 displacement process, especially for low-permeability reservoirs under varying geological conditions. In this study, long-core experiments and trans-scale numerical simulations are employed to examine the characteristics of oil production and CO2 storage. Optimal production parameters for the target reservoir are also proposed. The results indicate that maintaining the pressure at 1.04 to 1.10 times the minimum miscible pressure (MMP) and increasing the injection rate can enhance oil production in the early stage of reservoir development. In contrast, reducing the injection rate at the later stages prevents CO2 channeling, thus improving oil recovery and CO2 storage efficiency. A solution-doubling factor is introduced to modify the calculation method for CO2 storage, increasing its accuracy to approximately 90 %. Before CO2 breakthrough, prioritizing oil production is recommended to maximize the economic benefits of this process. In the middle stage of CO2 displacement, decreasing the injection rate optimizes the coordination between oil displacement and CO2 storage. Further, in the late stage, reduced pressure and injection rates are required as the focus shifts to CO2 storage. |
| format | Article |
| id | doaj-art-ef72d5449e364ae6a40d4c06019e2723 |
| institution | OA Journals |
| issn | 2666-7592 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Energy Geoscience |
| spelling | doaj-art-ef72d5449e364ae6a40d4c06019e27232025-08-20T02:33:12ZengKeAi Communications Co., Ltd.Energy Geoscience2666-75922025-06-016210040510.1016/j.engeos.2025.100405Optimizing the development plan for oil production and CO2 storage in target oil reservoirXiliang Liu0Hao Chen1Yang Li2Weiming Cheng3Yangwen Zhu4Hongbo Zeng5Haiying Liao6State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing, 102249, China; Chemical and Materials Engineering Department, University of Alberta, Edmonton, T6G1H9, CanadaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing, 102249, China; Corresponding author.China Petroleum & Chemical Corporation, Beijing, 100728, ChinaState Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing, 102249, ChinaPetroleum Exploration and Production Research Institute, SINOPEC, Beijing, 100083, ChinaChemical and Materials Engineering Department, University of Alberta, Edmonton, T6G1H9, CanadaPetroleum Exploration and Production Research Institute, SINOPEC, Beijing, 100083, ChinaCarbon dioxide enhanced oil recovery (CO2-EOR) technology is used for oil production and CO2 storage in reservoirs. Methods are being constantly developed to optimize oil recovery and CO2 storage during the CO2 displacement process, especially for low-permeability reservoirs under varying geological conditions. In this study, long-core experiments and trans-scale numerical simulations are employed to examine the characteristics of oil production and CO2 storage. Optimal production parameters for the target reservoir are also proposed. The results indicate that maintaining the pressure at 1.04 to 1.10 times the minimum miscible pressure (MMP) and increasing the injection rate can enhance oil production in the early stage of reservoir development. In contrast, reducing the injection rate at the later stages prevents CO2 channeling, thus improving oil recovery and CO2 storage efficiency. A solution-doubling factor is introduced to modify the calculation method for CO2 storage, increasing its accuracy to approximately 90 %. Before CO2 breakthrough, prioritizing oil production is recommended to maximize the economic benefits of this process. In the middle stage of CO2 displacement, decreasing the injection rate optimizes the coordination between oil displacement and CO2 storage. Further, in the late stage, reduced pressure and injection rates are required as the focus shifts to CO2 storage.http://www.sciencedirect.com/science/article/pii/S2666759225000265CO2 displacementCO2 storageCarbon dioxide enhanced oil recovery (CO2-EOR)Low-permeability oil reservoirDegree of miscibility |
| spellingShingle | Xiliang Liu Hao Chen Yang Li Weiming Cheng Yangwen Zhu Hongbo Zeng Haiying Liao Optimizing the development plan for oil production and CO2 storage in target oil reservoir Energy Geoscience CO2 displacement CO2 storage Carbon dioxide enhanced oil recovery (CO2-EOR) Low-permeability oil reservoir Degree of miscibility |
| title | Optimizing the development plan for oil production and CO2 storage in target oil reservoir |
| title_full | Optimizing the development plan for oil production and CO2 storage in target oil reservoir |
| title_fullStr | Optimizing the development plan for oil production and CO2 storage in target oil reservoir |
| title_full_unstemmed | Optimizing the development plan for oil production and CO2 storage in target oil reservoir |
| title_short | Optimizing the development plan for oil production and CO2 storage in target oil reservoir |
| title_sort | optimizing the development plan for oil production and co2 storage in target oil reservoir |
| topic | CO2 displacement CO2 storage Carbon dioxide enhanced oil recovery (CO2-EOR) Low-permeability oil reservoir Degree of miscibility |
| url | http://www.sciencedirect.com/science/article/pii/S2666759225000265 |
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