16 Result(s)
within
Bodhisatwa Hazra
Earth Sciences
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Article
Study on sequence stratigraphy in the Permian sediments of terrestrial sequences within the Chintalapudi sub-basin, Godavari Coalfield, Southern India: insight from palynology and geochemistry
The opening of Neo-Tethys within Gondwanaland during the Guadalupian (transition signified a pivotal transgressive event) in the Permian Period. Consequently, an attempt has been undertaken to elucidate the se...
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Article
Soil pollution in Indian coal mines, available remediation techniques and rock dust application: A review
Soil pollution due to coal mining and its associative activities has become a serious environmental concern in India. The by-products of coal mining are often disposed directly to the bare lands, significantly...
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Article
Experimental protocols to determine reliable organic geochemistry and geomechanical screening criteria for shales
Unconventional shale petroleum systems, owing to their petroleum generation and storage properties have gained tremendous exploitation and research interest in recent years. Moreover, their emergence as potent...
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Article
Source rock properties of Permian shales from Rajmahal Basin, India
In the present study, shale samples from Rajmahal Basin, India, were analysed in terms of their source rock properties using an open-system programmed pyrolysis instrument (Rock–Eval 6). Comprehensive analysis...
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Article
Structural and thermal properties of vitrain lithotype in coal-inferences from TG-DTG-DSC, Rock-Eval and X-ray diffraction
Vitrain is one of the most important lithotype for the end utilization of humic coals in relevant industries. In this work, we examine the thermal, structural and pyrolysis properties of vitrains, manually iso...
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Article
Impact of Particle Crush-Size and Weight on Rock-Eval S2, S4, and Kinetics of Shales
The Rock-Eval technique in the last few decades has found extensive application for source rock analysis. The impact of shale particle crush-size and sample weight on key Rock-Eval measurements, viz. the S2 curve...
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Article
Thermal Behavior of Some Indian Coals: Inferences from Simultaneous Thermogravimetry–Calorimetry and Rock–Eval
In this work, thermal behaviors of ten coal samples (across different thermal maturity levels) collected from five different open cast mines in the Jharia and Raniganj basins, India, were examined using differ...
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Article
Source rock properties and pore structural features of distinct thermally mature Permian shales from South Rewa and Jharia basins, India
Source-rock properties and pore structural properties of Permian shales (Barakar Formation) were evaluated from two Indian basins, with contrasting thermal maturities. South Rewa basin shales were marked by lo...
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Article
Source rock properties and pore structural framework of the gas-prone Lower Permian shales in the Jharia basin, India
This paper examines the source rock potential and pore structural framework of Lower Permian shales belonging to Barren Measures and Barakar Formations of Jharia basin, eastern India. The Jharia basin contains...
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Article
Coal combustion analysis using Rock-Eval: importance of S4-Tpeak
The Rock-Eval technique has been conventionally used for source-rock analysis. In this work we document the importance of Rock-Eval S4 oxidation graphics and S4-Tpeak as indicators for coal reactivity and thermal...
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Article
Petrographic controls on phosphorous distribution in coal seams of the Jharia basin, India
In recent years, the international coking coal market is experiencing an acute shortage of coal supply which has caused a fluctuation in its price. Degradation of coke, in the blast furnace, is largely control...
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Article
Predictions of Gross Calorific Value of Indian Coals from their Moisture and Ash Content
India, the world’s third largest coal producing country, is expected to maintain strong dependency on coal for the coming few decades. The gross calorific value (GCV) of coal is a key yardstick for many end us...
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Article
Characterization of organic-rich shales for petroleum exploration & exploitation: A review-Part 3: Applied geomechanics, petrophysics and reservoir modeling
Modeling geomechanical properties of shales to make sense of their complex properties is at the forefront of petroleum exploration and exploitation application and has received much research attention in recen...
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Article
Characterization of organic-rich shales for petroleum exploration & exploitation: A review-Part 2: Geochemistry, thermal maturity, isotopes and biomarkers
As shale exploitation is still in its infancy outside North America much research effort is being channelled into various aspects of geochemical characterization of shales to identify the most prospective basi...
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Article
Characterization of organic-rich shales for petroleum exploration & exploitation: A review-Part 1: Bulk properties, multi-scale geometry and gas adsorption
Shales, the most abundant of sedimentary rocks, are valued as the source-rocks and seals to porous petroleum reservoirs. Over the past-twenty years, organic-rich shales have also emerged as valuable petroleum ...
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Article
Petrographic characterization and langmuir volume of shales from Raniganj coal basin, India
Shale gas is becoming a very important energy resource throughout the world. 10 borehole samples of varying depths from 755–1480m belonging to Barren Measures (upper Permian), Raniganj (upper Permian) and Panc...
