The influence of pressure on petroleum generation and maturation as suggested by aqueous pyrolysis

High pressure water pyrolysis of coal to evaluate the role of pressure on hydrocarbon generation and source rock maturation at high maturities under geological conditions

“…Monthioux et al, 1985Monthioux et al, , 1986Freund et al, 1993;Michels et al, 1994;Huang, 1996;Knauss et al, 1997;Shuai et al, 2006;Tao et al, 2010). In contrast, under high pressure conditions in fixed volume vessels, in which the pyrolysed sample is in direct contact with water, pressure has been found to significantly retard both hydrocarbon generation and source rock maturation (Price and Wenger, 1992;Landais et al, 1994;Michels et al, 1995;Carr et al, 2009;Uguna et al, 2012aUguna et al, , b, 2013.…”

Evolutive characteristics of aromatics under high pressure and temperature of deep lithosphere

“…Overpressure not only affects the assessment of oil and gas resources in the superpressure basins, but also closely relates to the accumulation and preservation of petroleum in deep reservoirs [1] . Three conflicting opinions have been proposed based on the experiments about pressure effect on evolution of organic matter: (1) increasing pressure has no detectable effect on organic-matter maturation; (2) increasing pressure enhances the hydrocarbon thermal destruction; and (3) increasing pressure significantly retards the maturation of organic matter and hydrocarbon generation [2,3] …”

Feasibility study of material-balance assessment of petroleum from the New Albany Shale in the Illinois Basin

“…Several experimental studies have demonstrated that increasing hydrostatic pressure can significantly reduce hydrocarbon yields from source rocks (Price and Wenger, 1992;Freund and others, 1992, figs. 2 and 3;Michels and others, 1992).…”