Paradigms of biomarker and PAH distributions in lower Gondwana bituminous coal lithotypes

Ghosh, Santanu; Dutta, Suryendu; Bhattacharyya, Sudip; Konar, Ritam; Priya, Tanu

doi:10.1016/j.coal.2022.104067

Cited by 7 publications

(3 citation statements)

References 118 publications

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“…of organic matter derived from carotenoids as precursors produced by higher terrestrial plants, algae, and cyanobacteria during the diagenesis process. In addition, alkylbenzene compounds also indicated the presence of bacterial activity in the formation of sediment [49][50][51][52].…”

Section: Aromatic Hydrocarbon Fractionmentioning

confidence: 96%

Organic Geochemical Characteristics of Ngrayong Formation Polaman Sediment Rock, Northeast Java Basin-Indonesia

Zetra,

Burhan,

Sulistiyono

et al. 2023

Indones. J. Chem.

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A study of the sedimentary rocks of the Ngrayong formation has been carried out on five samples from the Polaman outcrop point to determine the potential of coal as a source rock for producing oil and gas through GC-MS analysis. Biomarker analysis shows the presence of n-alkanes (C16-C36) with a bimodal distribution, indicating that the source of organic material in sedimentary rocks comes from bacteria, algae, and vascular plants, which is supported by several parameters such as CPI, OEP, LHCPI, wax index, ACL and AlkTerr values. This dominant source of terrigenous organic matter is also proven by the TAR value, C31/C19, C29/C17 ratio, and several aromatic compounds and their derivatives. Bacterial input as an organic source of allouchtonic sedimentary rocks is also proven by the presence of hopanoid, de-A-lupane biomarkers, and C17/C31 ratio. The oxic deposition environment is indicated by the Pr/Ph ratio. CPI and OEP parameters, C29 bb/ab ratio > 0.15 and C31 22S/(22S+22R) < 1 indicate low maturity of the sediment sample. Several parameters and the presence of biomarkers stated above conclude that Ngrayong coal as a source rock has the potential to produce oil and gas.

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Section: Aromatic Hydrocarbon Fractionmentioning

confidence: 96%

Organic Geochemical Characteristics of Ngrayong Formation Polaman Sediment Rock, Northeast Java Basin-Indonesia

Zetra,

Burhan,

Sulistiyono

et al. 2023

Indones. J. Chem.

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“…Saturated hydrocarbons are present in low concentrations in produced waters. The short-chain alkanes are more abundant than the longer-chain homologs [101].…”

Section: Hydrocarbonsmentioning

confidence: 99%

“…Produced waters usually comprise <20 mg/L phenols [72]. The produced water from the Norwegian sector of the North Sea and Louisiana Gulf coast comprises 0.36-16.8 mg/L and 4.5 mg/L phenols, respectively [14,101]. Phenols, di-, and tri-methylphenols represent these phenols.…”

Section: Phenolsmentioning

confidence: 99%

Exploring Geochemical Signatures in Production Water: Insights from Coal Bed Methane and Shale Gas Exploration—A Brief Review

Ghosh,

Adsul,

Tiwari

et al. 2024

Methane

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This article furnishes a brief review of the geochemistry of waters produced during coal bed methane and shale gas exploration. Stable deuterium and oxygen isotopes of produced waters, as well as the stable carbon isotope of dissolved inorganic carbon in these waters, are influenced by groundwater recharge, methanogenic pathways, the mixing of formation water with saline water, water–rock interactions, well completion, contamination from water from adjacent litho-units, and coal bed dewatering, among many others. Apart from the isotopic fingerprints, significant attention should be given to the chemistry of produced waters. These waters comprise natural saturated and aromatic organic functionalities, metals, radioisotopes, salts, inorganic ions, and synthetic chemicals introduced during hydraulic fracturing. Hence, to circumvent their adverse environmental effects, produced waters are treated with several technologies, like electro-coagulation, media filtration, the coupling of chemical precipitation and dissolved air flotation, electrochemical Fe+2/HClO oxidation, membrane distillation coupled with the walnut shell filtration, etc. Although produced water treatment incurs high costs, some of these techniques are economically feasible and sustain unconventional hydrocarbon exploitation.

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An overview of the impacts of coal mining and processing on soil: assessment, monitoring, and challenges in the Czech Republic

Rouhani¹,

Gusiatin²,

Hejcman³

2023

Environ Geochem Health

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Paradigms of biomarker and PAH distributions in lower Gondwana bituminous coal lithotypes

Cited by 7 publications

References 118 publications

Organic Geochemical Characteristics of Ngrayong Formation Polaman Sediment Rock, Northeast Java Basin-Indonesia

Organic Geochemical Characteristics of Ngrayong Formation Polaman Sediment Rock, Northeast Java Basin-Indonesia

Exploring Geochemical Signatures in Production Water: Insights from Coal Bed Methane and Shale Gas Exploration—A Brief Review

An overview of the impacts of coal mining and processing on soil: assessment, monitoring, and challenges in the Czech Republic

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