Geochemical and petrographical fingerprints of coal bed methane potential in the Son-valley Basin, India

Kumar, Shishir; Varma, Atul Kumar; Mendhe, Vinod Atmaram; Kumar, Shikhar; Bhan, Uday

doi:10.1007/s12517-022-11007-3

Cited by 3 publications

(4 citation statements)

References 66 publications

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“…The coal samples display high volatile mater (44.35%, as received) and fixed carbon (43.94%, as received) values. This moderate ash content may have resulted from the process of mixing mineral materials with organic materials during the sedimentation process due to geological factors such as the rate of sedimentation, changing water levels, and tectonic processes 53 . Edress et al 19 pointed out the sea level fluctuations and associated water table changes during coal deposition in El-Maghara.…”

Section: Resultsmentioning

confidence: 99%

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Hydrocarbon generation potential evaluation via petrographic and geochemical analyses of El-Maghara coal in Sinai, Egypt

Salman,

Abou El-Anwar,

Makled

et al. 2024

Sci Rep

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The energy demand increased dramatically owing to the evolution of industrial and domestic requirements and the associated decrease in oil and gas resources. This study aims to evaluate El-Maghara coal (with about 52 MT reserve) as a potential hydrocarbon source. The collect samples were subjected to petrographic, chemical analyses and Rock–Eval pyrolysis to investigate the detailed characteristics of this coal. Chemically, this coal is high volatile bituminous coal with high H and S content. The high H/C ratio indicates the high extraction yield of coal. The main maceral group in the studied samples is vitrinite (62.8%) followed by liptinite (31.3%) and inertinite (5.8%). The content of liptinite indicates the capability of this coal for petroleum production. Based on Rock–Eval Pyrolysis results and TOC content, the coal has excellent petroleum potential. The hydrogen index (HI) and H/C atomic ratio indicate the II kerogen type (oil prone) of this coal. This coal has Tmax and vitrinite reflectance values around 415.8 °C and 0.37%, respectively, indicating the immature stage of kerogen. The high reactive maceral content (94.2%), oil-yield (65.5%) and conversion from coal to oil (95.4%), indicated that this coal has a hydrocarbon generation potential for oil.

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Section: Resultsmentioning

confidence: 99%

“…5 c) of Suggate 45 . Accordingly, this coal is suitable for producing coal bed methane 53 , 64 – 66 . The fuel ratio (FR) of the studied coals was around 0.99, placing the samples at the bituminous rank based on Frazer’s 67 classification.…”

Section: Resultsmentioning

confidence: 99%

Hydrocarbon generation potential evaluation via petrographic and geochemical analyses of El-Maghara coal in Sinai, Egypt

Salman,

Abou El-Anwar,

Makled

et al. 2024

Sci Rep

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“…Methane is transported through diffusion in the micropores [41], while in the nanopore networks, the methane flow is controlled by pore wall-molecule interactions, molecule-molecule interactions, and diffusion [38,42]. The maceral content and total organic carbon (TOC) content in coals also influence the adsorption of methane on micropores [10,[43][44][45]. With the advent of coal rank, hydrocarbon production from the thermal degradation of organic matter forms the organic intraparticle pores [35,46].…”

Section: Coal Make-up Controls the Storage Of Methane In Coal Bedsmentioning

confidence: 99%

“…The reasonably large amount of coal deposits in India gives leverage for CBM recovery. India currently possesses 2600 billion cubic meters (BCM) of total CBM reserves, and CBM has been produced commercially since 2007 [1,[9][10][11][12]. According to the Directorate General of Hydrocarbons [13], CBM resources in the Indian Coal Basin are identified as having an area of 26,000 km 2 and ~91.8 TCF (trillion cubic feet).…”

Section: Introductionmentioning

confidence: 99%

Biogeochemical Controls on Methane Generation: A Review on Indian Coal Resources

et al. 2023

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Coal bed methane (CBM) extraction has astounding effects on the global energy budget. Since the earliest discoveries of CBM, this natural gas form has witnessed ever-increasing demands from the core sectors of the economy. CBM is an unconventional source of energy occurring naturally within coal beds. The multiphase CBM generation during coal evolution commences with microbial diagenesis of the sedimentary organic matter during peatification, followed by early to mature thermogenic kerogen decomposition and post-coalification occurrences. Indeed, the origin of the CBM and, moreover, its economically valuable retention within coal seams is a function of various parameters. Several noticeable knowledge gaps include the controls of coal make-up and its physico-chemical position on the CBM generation and genetic link through fossil molecular and stable isotopic integration with the parent coal during its evolution. Therefore, this manuscript reviews the origin of CBM; the influences of coal properties and micropetrographic entities on CBM generation and storage; and its genetic molecular and stable isotope compositions in India and the world’s major coal reservoirs. Moreover, analyses of and outlooks on future development trends in the exploration, production, and application of coalbed methane are also addressed. Finally, as India has the fifth largest proven coal reserves, this brief review of the recent CBM discoveries and developments provides a plausible scope for microbially enhanced CBM production from these basins.

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Kerogen geochemistry and thermal decomposition kinetics of Early Permian shales from the Talchir Basin of Odisha, Eastern India

Prusty,

Mani,

Kar

et al. 2024

J Earth Syst Sci

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Geochemical and petrographical fingerprints of coal bed methane potential in the Son-valley Basin, India

Cited by 3 publications

References 66 publications

Hydrocarbon generation potential evaluation via petrographic and geochemical analyses of El-Maghara coal in Sinai, Egypt

Hydrocarbon generation potential evaluation via petrographic and geochemical analyses of El-Maghara coal in Sinai, Egypt

Biogeochemical Controls on Methane Generation: A Review on Indian Coal Resources

Kerogen geochemistry and thermal decomposition kinetics of Early Permian shales from the Talchir Basin of Odisha, Eastern India

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