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 desmocollinit...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 C29 sterane predominance. The hydrocarbon generation process from the coal series is characterized by multistages, early generation and early expulsion.展开更多
文摘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 C29 sterane predominance. The hydrocarbon generation process from the coal series is characterized by multistages, early generation and early expulsion.
