An overview of organic geochemical indices to evaluate conventional petroleum source rocks: a summary of examples from the Indian Subcontinent

AS Ratnayake - Petroleum Science and Technology, 2024 - Taylor & Francis
The elemental, isotopic, and molecular (biomarker) compositions of sedimentary organic
matter help to evaluate conventional petroleum source rocks. The objectives of this overview …

Spectral manifestations of coal metamorphism: Insights from coal microstructural framework

S Ghosh, A Ojha, AK Varma - International Journal of Coal Geology, 2020 - Elsevier
The present study investigates the microstructural framework of coals from the Raniganj and
the Jharia Basins as well as from the Himalayan fold-thrust belts of Sikkim, India, by vitrinite …

Spectral narratives of microstructural restyling and their controls on hydrocarbon generation potential from coal

T Adsul, S Ghosh, A Ojha, S Bhattacharyya… - International Journal of …, 2023 - Springer
The low to medium-rank Tertiary coals from Meghalaya, India, are explored for the first time
for their comprehensive microstructural characterization using the FTIR and Raman …

Palaeocene-Eocene organic sedimentary archives of Bikaner-Nagaur Basin, Rajasthan, India: An integrated revelation from biogeochemical and elemental proxies

D Kumar, S Ghosh, B Tiwari, AK Varma… - International Journal of …, 2021 - Elsevier
Abstract The Palaeocene-Eocene organic sedimentary archives comprising lignites,
carbonaceous shales, and shales from the Palana Formation of the Bikaner-Nagaur Basin …

Trace and rare earth elements in the Permian shales: geochemical paradigms

B Tiwari, S Ghosh, S Kumar, AK Varma - Arabian Journal of Geosciences, 2023 - Springer
The present study investigates the geochemistry of the shale samples from the Barren
Measures Formation of the Jharia Basin through major and trace element distributions as …

Geochemical signatures of potassium metasomatism in anthracite from the Himalayan fold-thrust belts of Sikkim, India

S Ghosh, A Ojha, AK Varma - International Journal of Coal Science & …, 2022 - Springer
The present study focuses on the inorganic geochemical features of the bituminous coal
samples from the Raniganj and the Jharia Basins, as well as the anthracite samples from the …

Nature and hydrocarbon potential of organic matter in offshore Mahanadi Basin, east coast of India

S Mishra, A Peketi, B Hazra, R Da Silva… - Journal of Earth System …, 2023 - Springer
Evaluating the hydrocarbon-generating potential of buried organic matter in marine
sediments is critical in offshore oil/gas exploration. Organic matter sources, total organic …

Inversion of tight oil origin by geochemical characteristics: a case study of central Northern Shaanxi Slope, Ordos Basin

X Shao, S Chen, J Lei, Y Bai, K Zhou, Y Liu… - Arabian Journal of …, 2021 - Springer
Hengshan area is located in the middle of the Northern Shaanxi Slope of the Ordos Basin.
Due to the low degree of exploration and weak basic understanding, the origin of tight oil in …

Geochemical characteristics and source of crude oil in the Shenhu uplift, Pearl River Mouth Basin, South China Sea

X Fu, S Chen, X He, J You, H Li, M Lei - Arabian Journal of Geosciences, 2022 - Springer
There is a lack of systematic study on geochemical characteristics and the source of crude
oil in Shenhu uplift area of the Pearl River Mouth Basin (PRMB). Under such circumstances …

Source rock characteristics of organic-rich shales in the Late Jurassic Lam Member and their contribution to oil and gas generation potentials in Al-Jawf exploration …

MH Hakimi, NSZ Abidin, A Kahal, A Ahmed… - Arabian Journal of …, 2021 - Springer
The shale intervals in the Late Jurassic (Tithonian) Lam Member were collected from four
exploration wells in the Al-Jawf region, northwestern Yemen, for combination of organic …