Management of Coalbed Methane and Coal Mine Produced Water for Beneficial Use in Damodar Basin of India

Mendhe, Vinod Atmaram; Mishra, Subhashree; Singh, Ajoy Kumar; Kamble, Alka Damodhar; Bannerjee, Mollika; Gupta, Sunil Kumar

doi:10.1007/978-981-10-5711-3_20

Cited by 2 publications

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“…The government is looking for improvements in shale gas development to reduce its petroleum import and dependence and fulfill the growing energy needs of 1.25 billion people. , The Proterozoic, Gondwana, and Tertiary sedimentary basins in India have been assessed for shale gas potential and estimated 63 tcf of recoverable resources . The exploration and exploitation of Gondwana coal in India have continued since 1774. , However, associated shales were considered seal (cap-rock) and not a resource; hence, scientific documentation has never been done. − Presently, gathering information on fundamental shale gas reservoir characteristics is in full swing in India. The coal seams of the Jharia basin are placed in Category-I, known for maximum future commercial methane potential among Indian CBM blocks.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Variation in Pore Structure and Associated Fractal Dimensions of Barakar and Barren Measures Carbon-Rich Gas Shales of Jharia Basin, India

et al. 2021

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The carbon-rich Barakar and Barren Measures shale beds of the Jharia basin were evaluated for variation in pore size, pore structure, and fractal dimensions. The shale core samples were obtained from exploratory boreholes drilled at the Jharia basin. The shale samples were analyzed for organo-inorganic composition by FTIR, pore size, and pore structure using BET low-pressure N 2 adsorption and pore geometry through FE-SEM photographs. The shale samples have significant carbon-rich content and are intercalated-banded in nature. The pore structures were evaluated through N 2 isotherms and validated by SEM images, revealing the mixed contribution of organo-inorganic matter in pore formations controlled by geochemical alteration, diagenesis, and mineral interaction. The rough internal surfaces of the pore were evaluated by categorizing them into fractals D 1 , D 2 , and D 3 . It is observed that the D 2 type of fractals is in abundance associated with mesopores. The positive trend of fractals with pore size, pore structure, depth, fixed carbon, and TOC suggests the influence of different parameters on the formation of pore internal rugged surfaces in shale beds. The FE-SEM images indicate shallow to deep pores with different pore structures with fair to good pore connectivity. In summary, the shale beds of Jharia have heterogeneous complex pore structures, a rough surface, and sorption mechanisms controlled by weathering/alteration, depositional conditions, and organo-inorganic content. In shale beds, gas storage and transport phenomena are directly related to pore size distribution, pore structure, and associated fractal dimensions. The calculated values using the proposed empirical models for porosity (EPO f ) and permeability (EPE f ) showed excellent linear correlation with the measured porosity (MPOc, R 2 = 0.8577) and permeability (MPEc, R 2 = 0.8577), which are close to measured values. The curve matching of EPO f with MPOc and EPE f with MPEc follows a similar path, validating the results and suitability of the models. Hence, the proposed models may be considered to estimate the porosity and permeability of shale and coal beds.

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