Abstract: Thermal modeling expertation have been mode for Pindiquan (P2) shale of Well Huo—11 in Huoshaoshen area, the eastern part of Junggar Basin. The thermal alteration characteristics of the bloearkers show that each of the compounds is changed regularly with the almulated temperatures, and that steranes have an anomalous lag obviously which is similar to the oil alteration from the well, indicating a partieular geological background and oil—forming environment.

Key words: Pindiquan formation, Thermal modelling experiment, Biomarkex, oil-forming mechanics