• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

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

    Thumbnail
    View/Open
    11024.pdf (951.1Kb)
    Date
    2023
    Author
    Mishra, Subhashree
    Peketi, A.
    Hazra, B.
    DaSilva, R.
    Mazumdar, A.
    Metadata
    Show full item record
    Abstract
    Evaluating the hydrocarbon-generating potential of buried organic matter in marine sediments is critical in offshore oil/gas exploration. Organic matter sources, total organic matter content (TOC), and maturity state play key roles in hydrocarbon generation when subjected to suitable temperature–pressure conditions. In the present study, we have characterized organic matter source and maturity to evaluate the hydrocarbon-generating potential of organic matter in the offshore Mahanadi Basin along the east coast of India. Although onshore hydrocarbon reservoirs, including coal, coalbed methane (CBM) and shale gas, are extensively explored in the Mahanadi Basin, a systematic characterization of the offshore buried organic matter is lacking. Towards this endeavour, we have adopted an integrated approach using TOC, (TOC/TN)m, Rock-Eval pyrolysis, and bulk carbon isotopic analyses. Organic geochemical screening (Rock-Eval pyrolysis) reveals predominance of type III and IV kerogen, with TOC content ranging from 0.61 to 1.71 wt.%. The hydrogen index (HI) values (37–156 mg HC/gTOC) infer that the organic matter is prone to generate gaseous hydrocarbons (dry to wet gases). Bi-modal distribution pattern of the S2 peak observed in six samples suggests the presence of both labile and refractory organic matter. The (TOC/TN)m ratios and δ13CTOC values indicate that the organic matter is derived from both terrestrial and marine sources
    URI
    https://doi.org/10.1007/S12040-023-02123-Z
    http://drs.nio.res.in/drs/handle/2264/9103
    Collections
    • Scholarly literature [9074]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV