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Influence of fracture orientation distribution function on the estimates of gas-hydrate saturation of site 10 at Krishna-Godavari Basin, India
Yudhvir Singh,
Published in Editrice Compositori s.r.l.
2015
Volume: 58
   
Issue: FASTTRACK3
Abstract
We estimate the gas-hydrate saturation in fractured reservoirs of gas hydrate-rich marine sediments from Krishna-Godavari basin along the eastern margin of India. Effective medium modeling (EMM) is a combination of self-consistent approxi-mation (SCA), differential effective medium (DEM) modeling and smoothing and ideals with the anisotropy associated with clay platelets’ orientation. It proves to be a good choice attributable to its dependency on physical parameters alone. Previous approaches appertain to the implementation of orientation distribution function (ODF) on clay platelets alone assuming a vertical ellipsoidal shape of gas hydrates whilst in the present study, we have implemented ODF on hydrate bearing fractures assigning an ellipsoidal shape to them as well. A bias of ~2-4% in the saturation estimates streamlines the betterness of this approach. © 2015, Editrice Compositori s.r.l. All rights reserved.
About the journal
JournalAnnals of Geophysics
PublisherEditrice Compositori s.r.l.
Open AccessNo
Concepts (10)
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    Estimation method
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    Fracture
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    GAS HYDRATE
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    Hydrocarbon reservoir
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    MARINE SEDIMENT
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    Modeling
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    Saturation
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    Godavari basin
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    India
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    KRISHNA BASIN