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  1. No Access

    Article

    Numerical modelling-based pillar strength estimation for an increased height of extraction

    Underground extraction of total thickness of a thick coal seam in single lift by bord and pillar method increases pillar height during retreat. Field studies found that the increase in pillar height affects th...

    Ashok Kumar, Rakesh Kumar, Arun K. Singh, Sahendra Ram… in Arabian Journal of Geosciences (2017)

  2. No Access

    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...

    Bodhisatwa Hazra, Pinaki Sarkar, Prasenjeet Chakraborty… in Arabian Journal of Geosciences (2020)

  3. No Access

    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...

    Bodhisatwa Hazra, David A. Wood, Pradeep K. Singh… in Arabian Journal of Geosciences (2020)

  4. No Access

    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...

    Deependra Pratap Singh, Vivek Singh, Pradeep K Singh… in Arabian Journal of Geosciences (2021)

  5. No Access

    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...

    Prasenjeet Chakraborty, Bodhisatwa Hazra, Pinaki Sarkar… in Natural Resources Research (2021)

  6. No Access

    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...

    Deependra Pratap Singh, David A. Wood, Vivek Singh… in Journal of Earth Science (2022)

  7. No Access

    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...

    Bodhisatwa Hazra, Deependra Pratap Singh… in Journal of Earth System Science (2022)