Petroleum prospects of marine sequences in South China
Tóm tắt
The comprehensive study of the tectonics-sequence stratigraphic-petroleum system shows that five sets of major regional and some local source rocks were developed in the tectonic evolution of South China, including the Lower Cambrian and Lower Silurian in the Caledonian cycle, the Middle Permian and Upper Permian in the Hercynian cycle, and the Lower Triassic in the Indo-Sinian cycle. Due to the inhomogeneous maturity of source rocks in this area, gas exploration would mainly be carried out in the Lower Paleozoic areas, while oil and gas exploration would be in the Upper Paleozoic ones. The reformation from the Indo-Sinian cycle to the Himalayan cycle exerted decisive influence on the hydrocarbon accumulation in the Mesozoic-Cenozoic basin and marine sequences in southern China. The petroleum systems formed in the medium-late period of the superimposed basins are of the greatest potential. The distribution of primary and secondary oil-gas pools was mainly affected by favorable sedimentary facies, ancient uplift and slope. The comprehensive evaluation concluded that the focuses for petroleum exploration in the marine sequences of southern China will be in the superimposed basins along the margin of Yangtze landmass, the Subei-southern South Yellow Sea basin and the marine sequences preserved under the over-thrust nappe along the northern margin of the Jiangnan uplift.
Tài liệu tham khảo
Chen H D, Tian J H, Liu W J, et al (2002). Division and correlation of the sequences of marine Sinian System to Middle Triassic Series in South of China. Journal of Chengdu University of Technology, 29(4): 355–379 (in Chinese with English abstract)
Editorial Group of Sichuan Oil and Gas Field (1989). Sichuan oil and gas field. In: Zhai G M, ed. Petroleum Geology of China (Vol.10). Beijing: Petroleum Industry Press, 5: 3–5 (in Chinese)
Fu X Y, Gao L (2003). Types of superimposed and reformed hydrocarbon bearing basins in South China and their exploration targets. Southern China Oil & Gas, 16(1): 8–11 (in Chinese with English abstract)
Han K Y (1995). Forming of Large-Medium scale gas fields at Kaijiang Palaeohigh in East Sichuan and exploration target. Natural Gas Industry, 15(4): 1–5 (in Chinese with English abstract)
Kang Y Z, Cai X Y, Zhang C L, et al (2002). The conditions and distributions on oil generation from Paleozoic facies in China. Urumchi: Xinjiang Science Technology and Hygiene Publishing House, 12: 254–257 (in Chinese)
Li Y P (1996). Reservoir-formed condition research on the known Large-Medium gas fields in Sichuan basin. Natural Gas Industry, 16(Suppl): 1–12 (in Chinese with English abstract)
Liu G D (2001). The second exploration of the oil and gas resources in China. Progress in Geophysics, 16(4): 1–3 (in Chinese with English abstract)
Ma L Q, Sun F X, Wang X F, et al (2002). Petroleum exploration prospect in the marine strata region of Southeastern margin of Yangzi landmass. Marine Origin Petroleum Geology, 7(3): 10–18 (in Chinese with English abstract)
Ma L, Chen H J, Gan K W, et al (2004). Geotectonics and Petroleum Geology of Marine Sedimentary Rocks in Southern China. Beijing: Geological Publishing House, 11: 3–19 (in Chinese)
Ma Y S, Fu Q, Guo T L, et al (2005). pool forming pattern and process of the Upper Permian-Lower Triassic, the Puguan gas field, Northeast Sichuan basin, China. Experimental Petroleum Geology, 27(5): 455–461 (in Chinese with English abstract)
Qiu Y Y, Xu L, Huang H L (1994). Preliminary discussion on poolformed patterns in Weiyuan gas field. Natural Gas Industry, 14(1): 9–13 (in Chinese with English abstract)
Song W H (1996). Research on reservoir-formed conditions of Large-Medium gas fields of Leshan-Longnusi Palaeohigh. Natural Gas Industry, 16(Suppl): 13–26 (in Chinese with English abstract)
Sun Z C, Qiu Y Y, Guo Z W (1991). On the relationship of the intraplate deformation and the secondary formation of oil/gas pools—The general regularities of oil/gas formation in Marie environment of the Yangtze area. Petroleum Geology & Experiment, 13(2): 107–142 (in Chinese with English abstract)
Wang G H, Zhao Z J, Li D C, et al (2001). The Frontier Petroleum Exploration in China (Vol.5). Beijing: Petroleum Industry Press. 9:9, 160(in Chinese)
Xu Z L (2002). New evidences for natural gas source of Zhujiadun gas field. Geological Journal of China Universities, 8(4): 423–428 (in Chinese with English abstract)
Yang F Z, Ma Y S, Fu X Y (2002). A geologic characteristics and exploration evolution of natural gas accumulation of marine strata in South China. Southern China Oil & Gas, 15(3–4): 2–15 (in Chinese with English abstract)
Zhao Z J (2002). The study method of petroleum system in superposition basin-As an example by analyzing Mesozoic & Paleozoic in Southern China. Acta Petrolei Sinica, 23(1): 11–18 (in Chinese with English abstract)
Zhao Z J (2006). Genetic classification of petroleum system and idea of exploration. Oil & Gas Geology, 27(1): 1–10 (in Chinese with English abstract)