Abstract
The Dengying Formation (Late Sinian age) gas system encompasses the Weiyuan gas field and other gas-producing structures. The natural gas included in this system is both sourced and reservoired in rocks of the Dengying Formation of Late Sinian age. The source rocks, dominated by micrite and dolomite, are sapropelic and have evolved in most regions to the overmature, dry gas stage. The peak of the natural gas generation occurred at the end of the Jurassic. The Sinian age reservoir rocks are formed of cavern-porous, fractured porosity, with both the primary and secondary porosities controlled by lithofacies distribution, unconformity surface development, and fracturing. The seal is provided by lower Cambrian shale. The Leshan-Longnusi Caledonian paleohigh, located near and partly within the hydrocarbon-generating center, marks this paleo-uplift as a most opportune site for the future discovery of commercial Sinian natural gas reserves.
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References
Bao, Ci, Li, Maojun, Han, Keyu, and Wan, Xiangren (1986) Geological characteristics and prospect of exploration in Sichuan basin: Advances in Petroleum Geology Series 3 — Exploration of Natural Gas. The Petroleum Industry Press, Beijing, pp. 32–45 (in Chinese).
Bao, Ci and Tang, Zeyao (1990) The formation and distribution of oil-gas reservoirs in the Sichuan basin: Advances in Petroleum Geology Series 5 — Study on OH and Gas Reservoirs of China. The Petroleum Industry Press, Beijing, pp. 142–152 (in Chinese).
Chen, Faijing, Wang, Xinwen, Zhang, Guangya, Cao, Shoulian and Luo, Chuanrong (1992) Structure and geodynamic setting of oil and gas basins in the People’s Republic of China: Journal of Graduate School, China University of Geosciences 6, 317–327 (in Chinese).
Chen, Wenzheng (1992) Rediscussion on the origin of Weiyuan Sinian gas pool in Sichuan Basin, Natural Gas Industry 12 (in Chinese).
Dickas, A.B. (1986) Worldwide distribution of Precambrian hydrocarbon, in Mudrey, M.G. Jr. (ed), Precambrian petroleum potential, Wisconsin and Michigan: Geoscience Wisconsin, Wisconsin Geological and Natural History Survey, 11, 8–13.
Dickas, A.B. (1995) The association of hydrocarbon with basement rock of prePhanerozoic age, in Ojakangas et al (eds), Basement Tectonics 10, Kluwer Academic Publishers, Dordrent, pp. 27–34.
Korsch, R.J., Mai Huazhao, Sun Zhaocai, and Goiter J.D. (1991) The Sichuan basin, southwest China: a late Proterozoic (Sinian) petroleum province: Precambrian Research 54, 45–64.
Magoon, L.B. and Dow, W.G. (eds) (1994) The petroleum system-from source to trap: American Association of Petroleum Geologists Memoir 60.
Song, Yan, Zhao Wenzhi and Li, Xianqi (1997) Analysis of natural gas reservoir-forming conditions in front of the Dabashan mountain, Sichuan basin, in Dai Jinxing et al. (eds), Advances in Natural Gas Geology Research, The Petroleum Industry Press, Beijing, pp. 78–84 (in Chinese).
Tong, Chongguang (1992) Tectonic evolution and oil and gas accumulation in Sichuan basin: The Geological Publishing House, Beijing, pp. 1–49 and 85-101 (in Chinese).
Watson, M.P., Hayward, A.B., Parkinson, D.N., and Zhang, Z.M. (1987) Plate tectonic history, basin development and petroleum source rock deposition onshore, China: Petroleum Geology, 4, 205–225.
Zhang, Guangya, Dickas A.B., and Chen, Quanmao (1995) The occurrences of descendant and indigenous hydrocarbon in Precambrian rocks of China, in R.W. Ojakangas et al. (eds), Basement Tectonics 10, Kluwer Academic Publishers, Dordrent, pp. 297–322.
Zhang, Zhongwu (1989) Structural features and evaluation of oil/gas-bearing Sichuan basin: Evaluation and Research of Oil and Gas Resources Series I Structural Characters in Petroliferous Areas of China. The Petroleum Industry Press, Beijing, pp. 211–228 (in Chinese).
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Zhang, G., Dickas, A.B., Song, J. (1999). Dengying Formation Gas System of the Sichuan Basin, Southwest China: Model for Precambrian Indigenous Hydrocarbon Accumulation. In: Sinha, A.K. (eds) Basement Tectonics 13. Proceedings of the International Conferences on Basement Tectonics, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4800-9_19
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DOI: https://doi.org/10.1007/978-94-011-4800-9_19
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