Abstract
Isotopic compositions of noble gases, i.e. He Ar Kr and Xe, are measured in natural gases from the Zhongbu gasfield in the Ordos Basin. And heavy noble-gas isotopes (Kr, Xe) are here first used in geochemically studying natural gases and gas-source correlation. Isotopic compositions of heavy noble gases in natural gases, especially Xe, show two-source mixing in the Zhongbu gasfield. Gas sources are somewhat different in the northeast and the southwest of the gasfield. Generally, the gas source of the Lower Paleozoic makes a greater contribution in the southwest than in the northeast in the field. Two kinds of gases can be differentiated from isotopic compositions of heavy noble gases and from their relation with the Ar isotopic composition. Therefore, the comprehensive study on isotopic compositions of light and heavy noble gases can supply more useful information on gas-source correlation and tracing.
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References
Xu Yongchang, Application of noble gases and its isotope in geology of petroleum, Translation Collected Works in Geology of Petroleum (3) (in Chinese), Beijing: Science Press, 1976, 299–308.
Liu Wenhiu, Xu Yngchang, The relationship between argon in natural gases and potassium and argon in hydrocarbon source rocks and reservoir rocks. Annual research report: Biogeochemistry and gasgeochemistry laboratory, Lanzhou Institute of Geology, Chinese Academy of Sciences (in Chinese), Lanzhou: Gansu Publishing House of Science and Technology, 1987, 191–200.
Xu Yongchang, Liu Wenhui, Shen Ping et al., Geochemistry of Noble Gases in Natural Gases, Beijing: Science Press, 1996, 1–275.
Liu Wenhui, Xu Yongchang, Significance of the isotopic compositions of He and Ar in natural gases, Chinese Science Bulletin, 1993, 38(20): 1726.
Butler, W. A., Jeffery, P. M., Reynoolds, J. H., Wasserburg, G. J., Isotopic variations in terrestrial xenon, J. Geophys. Res., 1963, 68: 3283.
Caffee, M. W., Hudson, G. B., Velsko, C. et al., Non-atmospheric noble gases from CO2 well gases, Lunar Planet. Sci., 1998, XIX: 154.
Lin, W. J., Manuel, O. K., Xenon decay products of extinct radionuclides in Navajo, New Mexico well gas, Geochim. J., 1987, 21: 197.
Murty, S. V. S., Noble gases and nitrogen in natural gases from Gujarat, India, Chem. Geol. (Isotope Geosci. Sect.), 1992, 94: 229.
Sheng Xu et al., Mantle-derived noble gases in natural gases from the Songliao Basin, China, Geochimica et Cosmochimica Acta, 1995, 59: 4675.
Kang Zhuling, Fu Chengde Cui Shufen et al., An Introduction to Large and Medium-scale Gasfields in China (in Chinese), Beijing: Petroleum Industry Press, 2000, 67–90.
Sun Mingliang, The measure of noble gas isotopes and the characteristics of VG5400 Mass Spectrograph. Annual research report: Biogeochemistry and Gasgeochemistry Laboratory, Lanzhou Institute of Geology, Chinese Academy of Sciences (in Chinese), Lanzhou: Gansu Publishing House of Science and Technology, 1987, 246–250.
Sun Mingliang, The analysis technology of noble gas isotope in natural gases, Acta Sedimentologica Sinica (in Chinese), 2001, 19(2): 271.
Sun Shaohua, Liu Shunsheng, Wang Jiyang, The heat flow field in the Ordos Basin, NW China, Geotectonica et Metallogenia (in Chinese), 1996, 20(1): 29.
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Liu, W., Sun, M. & Xu, Y. An approach to noble-gas isotopic compositions in natural gases and gas-source tracing in the Ordos Basin, China. Chin.Sci.Bull. 47, 490–494 (2002). https://doi.org/10.1360/02tb9113
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DOI: https://doi.org/10.1360/02tb9113