Stratigraphic architecture and coal character of Late Permian Fort Cooper Coal Measures, Bowen Basin, Queensland

Abstract

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Effects of moisture, salinity and ethane on the competitive adsorption mechanisms of CH4/CO2 with applications to coalbed reservoirs: A molecular simulation study

“…Specifically, C2H6 content reaches up to 9.8% in Charleston coals, ranges between 2 and 11% in Fair Hill Formation seams, and between 0.6 and 4.8% in Fruitland Coalbed Gases. [40][41][42] Moreover, Ripepi observed that the fraction of C2H6 increases from 0.2% at 1,486 ft to 4% at 2,017 ft subsurfaces, which suggests that deeper coal seams hold a greater C2H6 concentration. 37 Julien took type I kerogen fragments to determine the adsorption properties of pure CH4 and C2H6.…”

Insights into the Molecular Competitive Adsorption Mechanism of CH4/CO2 in a Kerogen Matrix in the Presence of Moisture, Salinity, and Ethane

“…The numbers of H 2 O molecules are 11 (0.59 mmol/g), 22 (1.2 mmol/g), 33 (1.67 mmol/g), 44 (2.23 mmol/g), and 55 (2.79 mmol/g), with from 1 to 5 wt % moisture content. For a better understanding, Figure 5(a) shows the molecular distributions of 0−5 wt % moisture content.…”

“…In shale gas reservoirs, C 2 H 6 content reaches 11.8% in Barnett shale, 16.1% in Marcellus shale, and 4.9% in Antrim shale, exhibiting C 2 H 6 , present in large deposits in gas shales, and the influence of C 2 H 6 cannot be overlooked . In coalbed reservoirs, the C 2 H 6 content approaches 9.8% in Charleston coals, ranges between 2 and 11% in Fair Hill Formation seams, and is present at 0.6 and 4.8% in Fruitland Coalbed Gases, showing that C 2 H 6 deposition cannot be ignored in coalbed reservoirs. − In addition, Ripepi found that the C 2 H 6 content increases from 0.2% at subsurface 1486 ft to almost 4% at 2017 ft, suggesting that C 2 H 6 holds a more significant amount in deeper coal seams . Experimental work by Liu et al was conducted on molecular sieves and activated carbon, and it was observed that C 2 H 6 has higher adsorption than CH 4 and preferentially adsorbed behavior over CH 4 in the binary mixture .…”

Stratigraphic architecture of Lopingian (upper Permian) strata in the Galilee Basin, NE Australia

“…Guerra-Sommer et al, 2005;Holz et al, 2010;Horn et al, 2014), Bowen Basin, Australia (e.g. Ayaz, 2016;Esterle and Sliwa, 2002;Laurie et al, 2016;Sliwa et al, 2017) and is a useful methodology to follow for economic emergent basins, such as the Galilee Basin, where previous research is minimal (e.g. Fielding, 2007a, 2007b;McKellar and Henderson, 2013;Vine et al, 1964Vine et al, , 1965.…”

“…Figure 9: Photographs of a) tuffaceous horizons in the C Seam from the Galilee Basin (Comet Ridge, 2010) and b) tuffaceous horizons within the Fort Cooper Coal Measures, Bowen Basin(Ayaz, 2016).…”