Physicochemical study of coal for CBM extraction in Raniganj coal field, India

Panwar, Deepak Singh; Saxena, V. K.; Suman, Siddharth; Kumar, Vineet; Singh, Ajay Kumar

doi:10.1080/15567036.2017.1314394

Cited by 12 publications

(5 citation statements)

References 14 publications

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“…Methane concentration in virgin coal bed methane (VCBM) is generally very high (>90%), which makes it eventually an additional source for natural gas supplies [15][16][17][18][19][20][21][22][23]. Methane gas, released during the mining activity and therefore released into the atmosphere by the ventilation system, is known as ventilation air methane [24].…”

Section: Introductionmentioning

confidence: 99%

“…The coal basins present in India are divided into four categories according to their area, geological age, coal quality, gas resource and depth of coal occurrence, as shown in Figure 1 [40]. Raniganj coalfield is one of the largest coalfields, and the coal seams present in this area are thick and carry high-rank bituminous coal with the considerable resource of coal bed methane [15][16][17][18][19][20][21][22]. One virgin coal block from Sitarampur located in the Burdwan district of West Bengal was being explored by Mineral Development and Trading Corporation Limited, Kolkata.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Forecasting of Coal Bed Methane Reservoir from Raniganj Coalfield, India

Panwar¹,

Chaurasia²,

Saxena

et al. 2022

Methane

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Demand for a cleaner source of energy is increasing in India. In the search for alternate energy sources, coal bed methane gas receives considerable attention for its potential as a good energy source. During the coalification process, methane gas is captured in the coal seams and later released during coal mining operations. Coal bed methane separation is crucial for both economic benefit and methane emission reduction. The methane production from seams is an efficient way to reduce greenhouse emissions and provide a safe mining operation environment. In India, the production of coal bed methane on a commercial scale has been recently observed. In the present paper, an attempt is made to understand and establish a 3-D excavation of coal bed methane from reservoir simulation (COMET3) for Gondwana coal seams in the Sitarampur block of the Raniganj coalfield in India. The simulation study was carried out for a period of 25 years for the recovery of methane from the reservoir. It is observed from the simulation study that 372 million cubic meters CO2 equivalent greenhouse gas emissions can be prevented by the extraction of methane with space and time. The fracture gas concentration increases with time, and it is observed that fractures are fully saturated with gas in 3000 days.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling and Forecasting of Coal Bed Methane Reservoir from Raniganj Coalfield, India

Panwar¹,

Chaurasia²,

Saxena

et al. 2022

Methane

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“…So, CMM is an unconventional form of natural gas found in association with coal seams, and it is a clean burning fuel with a good heating value > 8500 kcal/ Kg. (Ojha et al 2013;Panwar et al 2017aPanwar et al , 2017bPanwar et al , 2017c.…”

Section: Introductionmentioning

confidence: 99%

Geochemical investigation of hydrocarbon generation potential of coal from Raniganj Basin, India

Panwar

Chaurasia

Saxena

et al. 2021

J Petrol Explor Prod Technol

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Methane content in a coal seam is a necessary parameter for evaluating coal bed gas, and it poses an environmental risk to underground coal mining activities. Keeping in pace with comprehensive studies of coal bed gas, 12 coal samples were selected from the Sitarampur block of Raniganj Coalfield for analysis. The Petrographic examination illustrated that significant values of reactive macerals present in samples demonstrate that organic matter is dominated by the prominent source of aromatic hydrocarbons with a minor proportion of aliphatic hydrocarbon, which falls in the region of (Type III) kerogen, confirms the suitability for the potential of hydrocarbon generation. “A” factor (aliphatic/aromatic bands) and “C” factor (carbonyl/carboxyl bands) value concluded that the sample has the lowest aromaticity and the highest hydrocarbon-generating potential, which was also validated by the Van Krevelen diagram. The Van Krevelen diagram plots between the H/C and O/C ratio indicate that coal samples lie in the type III kerogen, and bituminous coal (gas prone zone) is present in the block, which is confirmed by the cross-plot between desorbed and total gas (cc/g). The in situ gas content values are high enough to produce methane from coal beds. The overall study concludes that the Sitarampur block from Raniganj Coalfield is suitable for hydrocarbon generation and extraction.

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“…The complex geological structure, high ground stress, high gas pressure and content, and low permeability in deep coal seams greatly increase the risk of coal and gas outburst 2–5 . Furthermore, coalbed methane (CBM) can not only cause gas disasters during the coal mining process 6–8 but is also a greenhouse gas, 9–13 and a kind of efficient clean energy 14–19 . There are particularly rich CBM resources in China.…”

Section: Introductionmentioning

confidence: 99%

Coal permeability evolution characteristics: Analysis under different loading conditions

et al. 2020

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The drainage and utilization of coalbed methane (CBM) resources can not only ensure the safe production of coal mines but also can reduce greenhouse gas emissions and protect the environment. Coal permeability is the key factor that affects the CBM drainage efficiency. To understand the coal permeability evolution characteristics, coal specimens reconstituted by coal powder with different particle sizes were prepared and their permeability under loading conditions was investigated. The results indicate that the coal permeability evolution laws measured by different gases are completely different under constant hydrostatic pressure conditions due to the influence of effective stress and the coal matrix sorption-induced deformation. Under constant effective stress conditions, the helium permeability of coals is almost unchanged if the effects of the Biot's coefficient of coals are ignored, but the methane permeability of coals decreases with increasing gas pressure. In the complete stress-strain process, the variation of coal permeability as the axial strain increases at different stages is almost completely different and the coal permeability in the residual plastic flow stage increases by 2.4-71 times, 1.5-39 times, and 2.8-116 times that of the initial state under the different boundary conditions. Furthermore, it is also found that the coal permeability evolution laws are determined by the effective stress, the sorption-induced deformation of coal matrices, and the malconformation of gas adsorption in coals. This study can help us better understand the seepage characteristics of gas in coals and guide the CBM development. C

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Physicochemical study of coal for CBM extraction in Raniganj coal field, India

Cited by 12 publications

References 14 publications

Modeling and Forecasting of Coal Bed Methane Reservoir from Raniganj Coalfield, India

Modeling and Forecasting of Coal Bed Methane Reservoir from Raniganj Coalfield, India

Geochemical investigation of hydrocarbon generation potential of coal from Raniganj Basin, India

Coal permeability evolution characteristics: Analysis under different loading conditions

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