Comparative pore structural attributes and fractal dimensions of Lower Permian organic-matter-bearing sediments of two Indian basins: Inferences from nitrogen gas adsorption. Issue 24 (17th December 2019)

• Record Type: Journal Article
• Authors: Hazra, Bodhisatwa; Chandra, Debanjan; Singh, Ashok K.; Varma, Atul K.; Mani, Devleena; Singh, Pradeep K.; Boral, Prabal; Buragohain, John
• Is Part Of: Energy sources. Volume 41:Issue 24(2019)
• Page Start: 2975
• Page End: 2988
• Publication Date: 2019-12-17
• Subjects: Fractal dimensions -- nitrogen gas adsorption -- pore structural framework -- Rock-Eval -- shale reservoirs -- thermal maturity; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2019.1582737
• Languages: English
• ISSNs: 1556-7036

Abstract

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.