Origin of immature sulfur-rich oil in Jianghan oil field |
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Authors: | Ping’an Peng Guoying Sheng Jiamo Fu Zhijun Wu Jigang Jiang |
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Affiliation: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 510640 Guangzhou, China;(2) Institute of Petroleum Research and Development, Jianghan Oil Field, 433100 Qianjiang, China |
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Abstract: | Chemical structure of immature sulfur-rich kerogen and composition of immature sulfur-rich crude oil in Jianghun oil field have been studied. In molecular level, crude oil differs from thermolysed and chemolysed products of kerogen but does resemble the bitumen in immature sulfur-rich source rock. Therefore, immature sulfur-rich oil may be derived from the expelling of bitumen rather than from thermal cracking of kerogen. |
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Keywords: | high-sulfur kerogen immature crude oil origin of petroleum |
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