Coal as a Possible Petroleum Source Rock: GEOLOGICAL NOTES

Relationships between coal-quality and organic-geochemical parameters: A case study of the Hafik coal deposits (Sivas Basin, Turkey)

“…Since the 1950s, many investigations have indicated the possibility that terrestrial sediments (especially coal and bituminous shale) have a potential to generate oil or gas by thermal maturation of organic compounds when buried in a sedimentary basin (Hubbard, 1950). Organic-geochemical studies, such as Rock-Eval pyrolysis, show that humic coals have a chemical potential to generate hydrocarbons (Durand and Paratte, 1983;Espitalié et al, 1985;Mukhopadhyay et al, 1989;Littke et al, 1990;Powell et al, 1991;Boreham and Powell, 1993;Clayton, 1993;Littke and Leythaeuser, 1993;Powell and Boreham, 1994;Clayton, 1998;Kalkreuth et al, 1998).…”

The controlling factors of oil and gas generation from coal in the Kuqa Depression of Tarim Basin, China

“…Hubbard, 1950;Dai, 1979;Dai, 1980;Hunt, 1991;Cheng and Zhang, 1994;Hu et al, 1996Hu et al, , 1997. Numerous other workers have also engaged in studies on the oil-generating potential of coal and generating potential of different macerals (e.g.…”