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Potential natural gas hydrates resources in Indian Offshore areas

DRS at CSIR-National Institute of Oceanography

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Title Potential natural gas hydrates resources in Indian Offshore areas
 
Creator Sethi, A.K.
Sathe, A.V.
Ramana, M.V.
 
Subject gas hydrates
natural gas
potential resources
offshore
seismic data
oil and gas industry
hydrocarbons
 
Description Large amount of multi-channel seismic reflection data was acquired by oil industry for exploration of hydrocarbon in the Indian Deepwater basins, beyond 400m isobath. These data were examined for BSRs, blanking above BSRs, polarity reversals etc (geophysical proxies of gas hydrates). A qualitative map prepared based on the inferred BSRs brought out a deepwater area of about 80,000 sq.km unto 3000 m isobath as favourable for gas hydrate occurrence. Methodology for reprocessing of seismic data was evolved during 1997 to infer BSRs (gas hydrates) by ONGC in collaboration with University of Victoria (UV), Canada. Subsequently several seismic line segments from the Indian offshore areas were reprocessed. Clear BSRs cutting across the sedimentary strata supported with interval velocity inversion in Krishna-Godavari deep offshore Basin were observed. The swath bathymetry maps generated for Eastern and Western offshore areas depict the seafloor morphology. Based on the encouraging results of these initial studies, further reprocessing of the seismic data was carried out by ONGC in a selected area in the Krishna-Godavari Basin
 
Date 2008-07-02T05:06:17Z
2008-07-02T05:06:17Z
2004
 
Type Conference Article
 
Identifier AAPG Hedberg Research Conference 'Natural Gas Hydrates: Energy Resource Potential and Associated Geologic Hazards', September 12-16, 2004, Vancouver, BC, Canada, 1-6p.
http://drs.nio.org/drs/handle/2264/1150
 
Language en
 
Rights Copyright [2004]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
 
Publisher AAPG