CHARACTERISTICS AND HYDROCARBON GENERATION OF PRIMARY ORGANIC MATTER IN THE TIAOHU FORMATION TUFF, SANTANGHU BASIN, NW CHINA
Z. Huang, J. Ma, W. Zhang, T. Li, J. Zhao and J. Dong
Event name: 29th International Meeting on Organic Geochemistry
Session: Posters - Source Rocks
Publication date: 02 September 2019
Info: Extended abstract, PDF ( 110.08Kb )
In this study, an integrated analysis of the organic geochemistry was conducted to determine the characteristics of depositional environment and hydrocarbon generation of the organic matter in the tuff. The tuffs are mainly the deposition of volcanic ash in the lacustrine basin from underwater eruption and transported by the wind agent adjacently. The deposition of tuff is in reducing environment favorable for the preservation of organic matter with brackish water (medium salinity).Although the hydrocarbon yield of the tuff is high, the crude oil generated by the tuff itself is difficult to achieve the oil saturation of the current tight tuff reservoir. The biomarkers of the saturated hydrocarbons of artificial generation of oil via the tuff pyrolysis differ significantly from those of crude oils in the tuff.