Simulating the gas hydrate behavior at equilibrium dissociation: a study from Mahanadi basin of eastern offshore, India

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dc.contributor.author Ghosal, Dibakar
dc.contributor.author Ganguli, Shib Sankar
dc.contributor.author Singh, Rishi N.
dc.contributor.author Sain, Kalachand
dc.date.accessioned 2018-10-26T12:27:05Z
dc.date.available 2018-10-26T12:27:05Z
dc.date.issued 2018-12
dc.identifier.citation Ghosal, Dibakar; Ganguli, Shib Sankar; Singh, Rishi N. and Sain, Kalachand, "Simulating the gas hydrate behavior at equilibrium dissociation: a study from Mahanadi basin of eastern offshore, India", Marine and Petroleum Geology, DOI: 10.1016/j.marpetgeo.2018.09.007, vol. 98, pp. 802-814, Dec. 2018. en_US
dc.identifier.issn 2648172
dc.identifier.uri https://doi.org/10.1016/j.marpetgeo.2018.09.007
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/3971
dc.description.abstract A suitable model is developed by analyzing the effects of external stimuli such as changes in pressure and temperature on the gas production behavior for the multi-phase fluid system. Our ultimate goal was to assess and understand the response of the Mahanadi basin of eastern India, which is already identified as a prospective zone for gas hydrate exploration, while subjected to dissociation through numerical simulation. Further, a series of simulations were conducted to understand the spatial distributions of several key parameters including hydrate saturation, gas and aqueous phase velocities, heat flux, enthalpy changes, within the system. In this case, we have considered only the equilibrium reaction model to simulate the natural gas production during two vital hydrate dissociation mechanisms such as thermal stimulation and depressurization methods. Coupled equations of heat and mass balance were used in every subdomain of the simulation and the integral difference equations were used to model the hydrate-bearing geologic system of the studied region at different physicochemical environments. The simulation results suggest that the studied field has a great prospect for commercial gas production. Further, we identified that the speed of dissociation front varies with the boundary pressure, and depressurization is the suitable dissociation method to produce more gas from the studied field when compared to the thermal stimulation. The developed model can be used as an avenue for further detailed study of natural gas production from the hydrate reservoir of this region.
dc.description.statementofresponsibility by Dibakar Ghosal, Shib Sankar Ganguli, Rishi N. Singh and Kalachand Sain
dc.format.extent vol. 98, pp. 802-814
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Gas-hydrate en_US
dc.subject Equilibrium dissociation en_US
dc.subject Numerical simulation en_US
dc.subject Mahanadi basin en_US
dc.title Simulating the gas hydrate behavior at equilibrium dissociation: a study from Mahanadi basin of eastern offshore, India en_US
dc.type Article en_US
dc.relation.journal Marine and Petroleum Geology


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