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PRODUCTION STRATEGIES FOR MARINE HYDRATE RESERVOIRS

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Title: PRODUCTION STRATEGIES FOR MARINE HYDRATE RESERVOIRS
Author: Phirani, J.; Mohanty, K. K.
Subject Keywords gas hydrates;injection temperature;injection pressure;production pressure;ICGH 2008;International Conference on Gas Hydrates 2008
Issue Date: 2008-07
Publicly Available in cIRcle 2008-07-29
Citation: Phirani, J.; Mohanty, K.K. 2008. PRODUCTION STRATEGIES FOR MARINE HYDRATE RESERVOIRS. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
Abstract: Large quantities of natural gas hydrate are present in marine sediments along the coastlines of many countries as well as in arctic regions. This research is aimed at assessing production of natural gas from the marine deposits. We had developed a multiphase, multicomponent, thermal, 3D simulator in the past, which can simulate production of hydrates both in equilibrium and kinetic modes. Four components (hydrate, methane, water and salt) and five phases (hydrate, gas, aqueous-phase, ice and salt precipitate) are considered in the simulator. In this work, we simulate depressurization and warm water flooding for hydrate production in a hydrate reservoir underlain by a water layer. Water flooding has been studied as a function of injection temperature, injection pressure and production pressure. For high injection temperature, the higher pressure increases the flow of warm water (heat) in the reservoir making the production rate faster, but if injection temperature is not high then only depressurization is the best method of production. At intermediate injection temperature, the production rate changes non-monotonically with the injection pressure.
Affiliation: OtherOther
URI: http://hdl.handle.net/2429/1174
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