Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example
This study carried out a research on the distribution characteristics of the geostress field of ultra-deep strike-slip faults, aiming to improve the exploration efficiency and development benefits of ultra-deep fault-controlled reservoirs. This study combines multiple geological information, drillin...
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1361247/full |
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| author | Yu Zhang Yu Zhang Yu Zhang Yu Zhang Ke Xu Ke Xu Ke Xu Ke Xu Hui Zhang Hui Zhang Hui Zhang Hui Zhang Shujun Lai Shujun Lai Shujun Lai Shujun Lai Jingrui Liang Jingrui Liang Jingrui Liang Jingrui Liang Ziwei Qian Ziwei Qian Ziwei Qian Ziwei Qian |
| author_facet | Yu Zhang Yu Zhang Yu Zhang Yu Zhang Ke Xu Ke Xu Ke Xu Ke Xu Hui Zhang Hui Zhang Hui Zhang Hui Zhang Shujun Lai Shujun Lai Shujun Lai Shujun Lai Jingrui Liang Jingrui Liang Jingrui Liang Jingrui Liang Ziwei Qian Ziwei Qian Ziwei Qian Ziwei Qian |
| author_sort | Yu Zhang |
| collection | DOAJ |
| description | This study carried out a research on the distribution characteristics of the geostress field of ultra-deep strike-slip faults, aiming to improve the exploration efficiency and development benefits of ultra-deep fault-controlled reservoirs. This study combines multiple geological information, drilling information, seismic data, and seismic attribute analysis. Taking the FI12 fault zone in the Fengman Oilfield as an example, it carried out numerical simulation of the geostress field, clarified the distribution pattern of geostress, analyzed the effectiveness of fracture mechanics, and proposed a reservoir quality evaluation method and production increase strategy based on geostress analysis. The study includes the following three aspects: 1) research on the heterogeneity of fault-controlled fractured carbonate reservoirs: Due to the existence of faults, fractures, and pores, carbonate reservoirs exhibit strong heterogeneity. These discontinuous structures lead to local stress field decreases to varying degrees. By analyzing the changes in geostress, it is possible to infer the development of faults, fractures, and pores. This provides important basis for predicting and evaluating reservoirs. 2) research on the distribution pattern of geostress: The geostress of fractured bodies exhibits a “shell-type” distribution pattern. Inside the fractured body, the geostress values are lower, indicating that this part is a favorable reservoir body. On the outside of the fractured body, the geostress exhibits high-value concentration, and this part has relatively poor permeability and can be regarded as an unfavorable drilling target. 3) research on the relationship between fault-fracture mechanical activity and reservoir quality and production capacity: Geostress and its influence on fault-fracture mechanical activity are directly related to the quality and production capacity of fault-controlled fractured carbonate reservoirs. When deploying well locations and optimizing well trajectories, geostress factors should be fully considered, and reservoir reformation efficiency should be taken into account to promote single well production increases and reservoir economic devel. |
| first_indexed | 2024-03-07T21:27:45Z |
| format | Article |
| id | doaj.art-63a2d0356b44485fae996141c199a9d9 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-03-07T21:27:45Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Energy Research |
| spelling | doaj.art-63a2d0356b44485fae996141c199a9d92024-02-27T04:23:28ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2024-02-011210.3389/fenrg.2024.13612471361247Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an exampleYu Zhang0Yu Zhang1Yu Zhang2Yu Zhang3Ke Xu4Ke Xu5Ke Xu6Ke Xu7Hui Zhang8Hui Zhang9Hui Zhang10Hui Zhang11Shujun Lai12Shujun Lai13Shujun Lai14Shujun Lai15Jingrui Liang16Jingrui Liang17Jingrui Liang18Jingrui Liang19Ziwei Qian20Ziwei Qian21Ziwei Qian22Ziwei Qian23Research Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaResearch Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaResearch Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaResearch Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaResearch Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaResearch Institute of Exploration and Development, Tarim Oilfield Company, Korla, ChinaR&D Center for Ultra Deep Complex Reservoir Exploration and Development, China National Petroleum Corporation (CNPC), Korla, ChinaEngineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, ChinaXinjiang Key Laboratory of Ultra-Deep Oil and Gas, Korla, Xinjiang, ChinaThis study carried out a research on the distribution characteristics of the geostress field of ultra-deep strike-slip faults, aiming to improve the exploration efficiency and development benefits of ultra-deep fault-controlled reservoirs. This study combines multiple geological information, drilling information, seismic data, and seismic attribute analysis. Taking the FI12 fault zone in the Fengman Oilfield as an example, it carried out numerical simulation of the geostress field, clarified the distribution pattern of geostress, analyzed the effectiveness of fracture mechanics, and proposed a reservoir quality evaluation method and production increase strategy based on geostress analysis. The study includes the following three aspects: 1) research on the heterogeneity of fault-controlled fractured carbonate reservoirs: Due to the existence of faults, fractures, and pores, carbonate reservoirs exhibit strong heterogeneity. These discontinuous structures lead to local stress field decreases to varying degrees. By analyzing the changes in geostress, it is possible to infer the development of faults, fractures, and pores. This provides important basis for predicting and evaluating reservoirs. 2) research on the distribution pattern of geostress: The geostress of fractured bodies exhibits a “shell-type” distribution pattern. Inside the fractured body, the geostress values are lower, indicating that this part is a favorable reservoir body. On the outside of the fractured body, the geostress exhibits high-value concentration, and this part has relatively poor permeability and can be regarded as an unfavorable drilling target. 3) research on the relationship between fault-fracture mechanical activity and reservoir quality and production capacity: Geostress and its influence on fault-fracture mechanical activity are directly related to the quality and production capacity of fault-controlled fractured carbonate reservoirs. When deploying well locations and optimizing well trajectories, geostress factors should be fully considered, and reservoir reformation efficiency should be taken into account to promote single well production increases and reservoir economic devel.https://www.frontiersin.org/articles/10.3389/fenrg.2024.1361247/fullultra-deepstrike-slip faultfracture-controlled fracture-cave reservoirgeostressgeomechanicsreservoir quality |
| spellingShingle | Yu Zhang Yu Zhang Yu Zhang Yu Zhang Ke Xu Ke Xu Ke Xu Ke Xu Hui Zhang Hui Zhang Hui Zhang Hui Zhang Shujun Lai Shujun Lai Shujun Lai Shujun Lai Jingrui Liang Jingrui Liang Jingrui Liang Jingrui Liang Ziwei Qian Ziwei Qian Ziwei Qian Ziwei Qian Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example Frontiers in Energy Research ultra-deep strike-slip fault fracture-controlled fracture-cave reservoir geostress geomechanics reservoir quality |
| title | Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example |
| title_full | Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example |
| title_fullStr | Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example |
| title_full_unstemmed | Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example |
| title_short | Numerical simulation and application of ground stress field in ultra-deep strike-slip faults—taking the FI12 fault zone in the Fuman Oilfield as an example |
| title_sort | numerical simulation and application of ground stress field in ultra deep strike slip faults taking the fi12 fault zone in the fuman oilfield as an example |
| topic | ultra-deep strike-slip fault fracture-controlled fracture-cave reservoir geostress geomechanics reservoir quality |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2024.1361247/full |
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