A brief overview of CBM Development in India

Sain, Kalachand; Vadapalli, Uma; Vedanti, Nimisha

doi:10.16943/ptinsa/2020/49799

Cited by 7 publications

(1 citation statement)

References 7 publications

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“…The vast coalfields of Raniganj, Barakar, and Jharia hold enormous amounts of high-quality coal. On the basis of coal rank, coal maturity, available area, physicochemical properties of coal, CBM potential, depth of occurrence of coal, and geological age, the Indian coal basins are categorized into four kinds ( Vedanti et al, 2020 ). The Raniganj coalfield is classified as Category I and has thick coal seams with high rank and maturity, as well as large reservoirs of methane gas and sorption capacity ( Vishal et al, 2013 ).…”

Section: Methodsmentioning

confidence: 99%

Culture-independent assessment of the indigenous microbial diversity of Raniganj coal bed methane block, Durgapur

Chawla,

Lavania,

Sahu

et al. 2023

Front. Microbiol.

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It is widely acknowledged that conventional mining and extraction techniques have left many parts of the world with depleting coal reserves. A sustainable method for improving the recovery of natural gas from coalbeds involves enhancing the production of biogenic methane in coal mines. By taking a culture-independent approach, the diversity of the microbial community present in the formation water of an Indian reservoir was examined using 16S rRNA gene amplification in order to study the potential of microbial-enhanced coal bed methane (CBM) production from the deep thermogenic wells at a depth of 800–1200 m. Physicochemical characterization of formation water and coal samples was performed with the aim of understanding the in situ reservoir conditions that are most favorable for microbial CBM production. Microbial community analysis of formation water showed that bacteria were more abundant than archaea. Proteobacteria, Firmicutes, and Bacteroidetes were found as the most prevalent phyla in all the samples. These phyla play a crucial role in providing substrate for the process of methanogenesis by performing fermentative, hydrolytic, and syntrophic functions. Considerable variation in the abundance of microbial genera was observed amongst the selected CBM wells, potentially due to variable local geochemical conditions within the reservoir. The results of our study provide insights into the impact of geochemical factors on microbial distribution within the reservoir. Further, the study demonstrates lab-scale enhancement in methane production through nutrient amendment. It also focuses on understanding the microbial diversity of the Raniganj coalbed methane block using amplicon sequencing and further recognizing the potential of biogenic methane enhancement through microbial stimulation. The findings of the study will help as a reference for better strategization and implementation of on-site microbial stimulation for enhanced biogenic methane production in the future.

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Section: Methodsmentioning

confidence: 99%

Culture-independent assessment of the indigenous microbial diversity of Raniganj coal bed methane block, Durgapur

Chawla,

Lavania,

Sahu

et al. 2023

Front. Microbiol.

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Geophysical Exploration of Unconventional Hydrocarbons

Satyavani

Uma

Kishore

et al. 2021

Journal of the Geological Society of India

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India is not an exception among the countries intensely probing for alternate unconventional hydrocarbon resources in the present day scenario of increasing demand for energy and faster depletion of conventional fossil fuel. It is estimated that in India, the prospects for unconventional hydrocarbons are more than the conventional ones; yet, due to lack of proper studies, non-availability of in-house technologies, and several other socio-economic factors, these deposits were not seriously considered for commercial production. In India’s latest energy policy and the ‘Atma Nirbhar Bharat Abhiyaan,’ various incentives are given to enhance the domestic production of hydrocarbons; thus, many new initiatives are taken to boost the unconventional resources exploration program. CSIR-NGRI initiated its exploration program in 1970 with deep seismic studies. Since then, seismic exploration studies were carried out in various lignite and coal fields, i.e., in Rajasthan, Andhra Pradesh, West Bengal, Madhya Pradesh, Jharkhand, and the Odisha state of India. In the last two decades, CSIR-NGRI made remarkable progress in unconventional resource exploration. Various prospective basins were explored using seismic reflection data to map unconventional resources like Gas hydrates, Coal Bed Methane, and Shale gas. This article presents a brief overview of seismic exploration studies being carried out at CSIR-NGRI to map unconventional hydrocarbons in the sedimentary basins of India.

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Climate Change and Fossil Fuels: Impacts, Challenges and Plausible Mitigation

Sain

2023

Journal of the Geological Society of India

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An attempt is made to bring out some important issues related to climate change (CC) and usage of fossil fuels, and their impact on energy and water securities. This also brings out plausible mitigation and some related challenges with special reference to the Himalayan geo-hazards. This article serves the concern on ‘why should one bother about the CC, fossil fuels energy and Himalayan Environment’.

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A brief overview of CBM Development in India

Cited by 7 publications

References 7 publications

Culture-independent assessment of the indigenous microbial diversity of Raniganj coal bed methane block, Durgapur

Culture-independent assessment of the indigenous microbial diversity of Raniganj coal bed methane block, Durgapur

Geophysical Exploration of Unconventional Hydrocarbons

Climate Change and Fossil Fuels: Impacts, Challenges and Plausible Mitigation

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