Deep-seated gas generation and preservation condition in China |
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| Authors: | Liu Wenhui and Zhang Dianwei |
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| Institution: | (1) Exploration & Development Research Institute, SINOPEC, Beijing, 100083, China;(2) The Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy Sciences, Lanzhou, 730000, China |
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| Abstract: | Deep-seated gas is defined in this paper as natural gas generated under the combined action of high temperature, high pressure,
and environment media. As to organic matter vertical evolution, deep-seated gas is natural gas, which is generated and deposited
under the position of an oil generation window. Deep-seated gas exploration is an important potential field for oil-gas exploration.
Also, it is an inexorable trend to the further development of oil and gas provinces. In this paper, the authors will examine
and distinguish the concept of deep-seated gas, and discuss the distribution and gas source of deep-seated gas. It is pointed
out that kerogen, assemble dissoluble organic matter and disperse dissoluble organic matter all have contributed to deep-seated
gas generation, especially disperse dissoluble organic matter in composite and superimposed sedimentary basin. In the end,
according to the structural evolution and hydrocarbon source rock depositional distribution, the distribution of deep-seated
gas in China is predicted.
Translated from Geology in China, 2006, 33(5): 937–943 译自: 中国地质] |
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| Keywords: | deep-seated gas oil generation window gas source disperse dissoluble organic matter |
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