Sedimentary conditions for good coal reservoir development in the Carboniferous and Permian, Qinshui Basin

Science China Press., Co. Ltd. - Tập 50 - Trang 17-23 - 2005
Zhenkui Jin1, Chunsheng Wang1
1Department of Geoscience, China Petroleum University, Beijing, China

Tóm tắt

In the Carboniferous and Permian of the Qinshui Basin, coal reservoirs are well developed. But different coal reservoirs are obviously different in distribution, thickness, and reservoir performance etc. This paper studies the factors controlling the development and distribution of good coal reservoirs from the viewpoint of sedimentology and sequence stratigraphy. The study shows that good coal reservoirs are mainly formed in marsh environments on tidal flats and delta plains. The coal reservoirs formed on tidal flats are more continuous laterally than those on delta plains. The fluctuation of sea level shows important control over the vertical and lateral distribution of coal reservoirs. Generally speaking, the coal reservoirs formed in the highstand system tracts are more abundant, thicker and more widespread, and thus the highstand system tracts are more favorable to the formation of good coal reservoirs. The coal reservoirs formed in the transgressive system tracts are lower in abundance, thinner and much less widespread, and thus the transgressive system tracts are not favorable to the formation of good coal reservoirs.

Tài liệu tham khảo

Institute of Coal Science, Sedimentary environments of coal-bearing strata in Xishan, Taiyuan (in Chinese with English abstract), Beijing: Coal Industry Press, 1987, 8–203.

Han Dexin, ed., Coal Petrology of China (in Chinese with English abstract), Xuzhou: China Mining Technology Press, 1996, 468–476.

Shang Guanxiong, Sequence Stratigraphy of the Late Paleozoic of North China (in Chinese with English abstract), Beijing: Geological Press, 1993, 117–151.

Chen Shiyue, Liu Huanjie, Sequence Stratigraphy and Coal Accumulation of the Late Paleozoic of North China (in Chinese with English abstract), Dongying: China Petroleum University Press, 2000, 18–45.

Zhong Rong, Fu Zeming, Relation of marine transgression and regression in the late Carboniferous-Early Permian with thick coal zones in North China Platform (in Chinese with English abstract), Acta Geologica Sinica, 1998, 72(1): 64–75.

Fu Xuehai, Qin Yong, Jiang Bo et al., Compression test of cleat and numeric simulation of permeability (in Chinese with English abstract), Coal Bull., 2001, 26(6): 573–577.

Fu Xuehai, Qin Yong, Li Guizhong, Major controlling factors of permeability of coal reservoir in central and southern Qinshui Basin (in Chinese with English abstract), Coalfield Geology and Exploration, 2001, 29(3): 16–19.

Jiang Bo, Qin Yong, Fan Binghuan et al., Reservoiring performance of coal reservoirs and coal bed gas exploration in Huaibei area (in Chinese with English abstract), China Mining Technology Press, 2001, 30(5): 433–437.

Qin Yong, Fu Xuehai, Ye Jianping et al., Mechanism and characteristics of control of coal reservoir petrophysical factors in China (in Chinese with English abstract), China Mining Technology Press, 1999, 28(1): 14–19.

Zhang Hui, Coal porosity genetic types and its study (in Chinese with English abstract), Coal Bull., 2001, 26(1): 40–44.

Zhang Jianbo, Wang Hongyan, Zhao Qingbo, eds., China Coal Bed Gas Geology (in Chinese), Geological Press, 2000, 89.

Zhang Yousheng, Qin Yong, Chen Jialiang, Permeability heterogeneity model of coal reservoirs (in Chinese with English abstract), China Mining Technology Press, 1998, 27(1): 43–46.

Harpalani, S., Schraufnagel, R. A., Shrinkage of coal matrix with release of gas and its impact on permeability of coal, Fuel, 1990, 69: 551–556.

Hucka, B. P., Analysis of cleat in Utah coal seams, Utah Geological and Mineral Survey Open ∼ file Report 154, 1989.

Laubach, S. E., Marrett, R. A., Olson, J. E. et al., Characteristics and origins of coal cleat a review, Internal Journal of Coal Geology, 1998, 35(1–2): 175–207.

Levine, J. R., Model study of the influence of matrix shrinkage on absolute permeability of coal bed reservoirs, Geological Society Publication, 1996,(199): 197–212.

Puri, R., Evanoff, J. C., Brugler, M. L., Measurement of coal cleat porosity and relative permeability characteristics, SPE 21491, 1991, 93–103.

Thông tin
Thông tin xuất bản

Science China Press., Co. Ltd.

Tập 50

17-23

Thông tin tác giả