Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin
The accumulation pattern of the marine shale gas in South China is different from that in North America. The former has generally thin reservoirs and complex preservation conditions, so it is difficult to make a fine description of the structural features of shale formations and to reflect accuratel...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-03-01
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| Series: | Natural Gas Industry B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854016300249 |
| _version_ | 1797288545387282432 |
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| author | Zuqing Chen Hongfei Yang Jingbo Wang Tianfa Zheng Penggui Jing Suguang Li Chao Chen |
| author_facet | Zuqing Chen Hongfei Yang Jingbo Wang Tianfa Zheng Penggui Jing Suguang Li Chao Chen |
| author_sort | Zuqing Chen |
| collection | DOAJ |
| description | The accumulation pattern of the marine shale gas in South China is different from that in North America. The former has generally thin reservoirs and complex preservation conditions, so it is difficult to make a fine description of the structural features of shale formations and to reflect accurately the distribution pattern of high-quality shale by using the conventional 2D and 3D seismic exploration technology, which has an adverse effect on the successful deployment of horizontal wells. In view of this, high-precision 3D seismic prospecting focusing on lithological survey was implemented to make an accurate description of the distribution of shale gas sweet spots so that commercial shale gas production can be obtained. Therefore, due to the complex seismic geological condition of Jiaoshiba area in Fuling, SE Sichuan Basin, the observation system of high-precision 3D seismic acquisition should have such features as wide-azimuth angles, small trace intervals, high folds, uniform vertical and horizontal coverage and long spread to meet the needs of the shale gas exploration in terms of structural interpretation, lithological interpretation and fracture prediction. Based on this idea, the first implemented high-precision 3D seismic exploration project in Jiaoshiba area played an important role in the discovery of the large Jiaoshiba shale gas field. Considering that the high-quality marine shale in the Sichuan Basin shows the characteristics of multi-layer development from the Silurian system to the Cambrian system, the strategy of shale gas stereoscopic exploration should be implemented to fully obtain the oil and gas information of the shallow, medium and deep strata from the high-precision 3D seismic data, and ultimately to expand the prospecting achievements in an all-round way to balance the high upstream exploration cost, and to continue to push the efficient shale gas exploration and development process in China. |
| first_indexed | 2024-03-07T18:51:04Z |
| format | Article |
| id | doaj.art-1d7d502dee9b4196a4d6d6ebb9339514 |
| institution | Directory Open Access Journal |
| issn | 2352-8540 |
| language | English |
| last_indexed | 2024-03-07T18:51:04Z |
| publishDate | 2016-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Natural Gas Industry B |
| spelling | doaj.art-1d7d502dee9b4196a4d6d6ebb93395142024-03-02T01:40:37ZengKeAi Communications Co., Ltd.Natural Gas Industry B2352-85402016-03-013211712810.1016/j.ngib.2016.03.006Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan BasinZuqing ChenHongfei YangJingbo WangTianfa ZhengPenggui JingSuguang LiChao ChenThe accumulation pattern of the marine shale gas in South China is different from that in North America. The former has generally thin reservoirs and complex preservation conditions, so it is difficult to make a fine description of the structural features of shale formations and to reflect accurately the distribution pattern of high-quality shale by using the conventional 2D and 3D seismic exploration technology, which has an adverse effect on the successful deployment of horizontal wells. In view of this, high-precision 3D seismic prospecting focusing on lithological survey was implemented to make an accurate description of the distribution of shale gas sweet spots so that commercial shale gas production can be obtained. Therefore, due to the complex seismic geological condition of Jiaoshiba area in Fuling, SE Sichuan Basin, the observation system of high-precision 3D seismic acquisition should have such features as wide-azimuth angles, small trace intervals, high folds, uniform vertical and horizontal coverage and long spread to meet the needs of the shale gas exploration in terms of structural interpretation, lithological interpretation and fracture prediction. Based on this idea, the first implemented high-precision 3D seismic exploration project in Jiaoshiba area played an important role in the discovery of the large Jiaoshiba shale gas field. Considering that the high-quality marine shale in the Sichuan Basin shows the characteristics of multi-layer development from the Silurian system to the Cambrian system, the strategy of shale gas stereoscopic exploration should be implemented to fully obtain the oil and gas information of the shallow, medium and deep strata from the high-precision 3D seismic data, and ultimately to expand the prospecting achievements in an all-round way to balance the high upstream exploration cost, and to continue to push the efficient shale gas exploration and development process in China.http://www.sciencedirect.com/science/article/pii/S2352854016300249Sichuan BasinSoutheastMarine faciesLarge Jiaoshiba shale gas fieldHorizontal wellHigh-precision 3D seismic explorationStereoscopic explorationSweet spot predictionHydrocarbon information |
| spellingShingle | Zuqing Chen Hongfei Yang Jingbo Wang Tianfa Zheng Penggui Jing Suguang Li Chao Chen Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin Natural Gas Industry B Sichuan Basin Southeast Marine facies Large Jiaoshiba shale gas field Horizontal well High-precision 3D seismic exploration Stereoscopic exploration Sweet spot prediction Hydrocarbon information |
| title | Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin |
| title_full | Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin |
| title_fullStr | Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin |
| title_full_unstemmed | Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin |
| title_short | Application of high-precision 3D seismic technology to shale gas exploration: A case study of the large Jiaoshiba shale gas field in the Sichuan Basin |
| title_sort | application of high precision 3d seismic technology to shale gas exploration a case study of the large jiaoshiba shale gas field in the sichuan basin |
| topic | Sichuan Basin Southeast Marine facies Large Jiaoshiba shale gas field Horizontal well High-precision 3D seismic exploration Stereoscopic exploration Sweet spot prediction Hydrocarbon information |
| url | http://www.sciencedirect.com/science/article/pii/S2352854016300249 |
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