Comparative pore structural attributes and fractal dimensions of Lower Permian organic-matter-bearing sediments of two Indian basins: Inferences from nitrogen gas adsorption

Hazra, B. and Singh, Ashok K and Singh, P.K. and Boral, P. and Buragohain, John (2019) Comparative pore structural attributes and fractal dimensions of Lower Permian organic-matter-bearing sediments of two Indian basins: Inferences from nitrogen gas adsorption. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 41 (24). ISSN 1556-7036

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Official URL: https://doi.org/10.1080/15567036.2019.1582737

Abstract

Pore structural framework of Lower Permian shales from two Indian basins is investigated using a low-pressure nitrogen adsorption–desorption technique. Specific surface areas (SSA) of shales are controlled by their thermal maturity. Thermally mature shales are marked by lower average pore sizes, diminishing pore size distribution style from the finer to the coarser pores, and higher fractal dimension D2, relative to the less mature shales. D2 (pore structural fractal dimension) showed a positive relationship with SSA and maturity and a negative correlation with pore sizes. The fractal-distinguishing parameter ∆S was higher for the mature shales. With increasing maturities, pore structures become complex and the fractal dimensions become more distinct.

Item Type:	Article
Uncontrolled Keywords:	Fractal dimensions, nitrogen gas adsorption, pore structural framework, Rock-Eval, shale reservoirs, thermal maturity
Subjects:	Coal Preparation
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	21 May 2020 07:00
Last Modified:	21 May 2020 07:00
URI:	http://cimfr.csircentral.net/id/eprint/2182

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