Coal-generated oil in Tuha Basin |
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| Authors: | Keming Cheng Aiguo Su Changyi Zhao Zhonghua He |
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| Institution: | (1) Research Institute of Petroleum Exploration and Development, 100083 Beijing, China |
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| Abstract: | The Turpan-Harmi (abbreviated to Tuha below) Basin is a typical basin of coal-generated oil accumulation in China. The Middle-Lower
Jurassic coal measures are considered the main source beds. Hence, both desmocollinite and suberinite are considered the contributors
for coal-generated oil. Principal geochemical features of the crude oil in the Tuha Basin are rich in alkanes (70%—80%), high
pristane/phytane ratio (6—8), abundant heavy carbon isotope (δ13C PDB= -26%–-23%) and absolute GP sterane predominance. The hydrocarbon generation process from the coal series is characterized
by multistages, early generation and early expulsion. |
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| Keywords: | suberinite desmocollinite oil from coal inherent moisture pore distribution of coal |
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