Development of numerical simulator predicting methane hydrate dissociation and production
نویسندگان
چکیده
منابع مشابه
Pore-network study of methane hydrate dissociation.
A two-dimensional pore-network model based on invasion percolation is used to study the patterns obtained from the release of methane during the dissociation of methane hydrates (without including dissociation kinetics) caused by a sudden pressure reduction in the system below the hydrate equilibrium pressure. The concept of the critical gas saturation S(gc) (volume fraction of the gas phase at...
متن کاملAcoustic Determination of Methane Hydrate Dissociation Pressures
The unique nature of the molecular structures of gas hydrates results in curious acoustic properties which have yet to be adequately characterized. Understanding the acoustic behavior of hydrates in liquids, in bubbly liquids, and in sediments containing liquids and/or gas is vital for surveying their location using seismic or echosounding techniques and may become a key tool for monitoring hyd...
متن کاملMolecular-dynamics simulations of methane hydrate dissociation.
Nonequilibrium molecular-dynamics simulations have been carried out at 276.65 K and 68 bar for the dissolution of spherical methane hydrate crystallites surrounded by a liquid phase. The liquid was composed of pure water or a water-methane mixture ranging in methane composition from 50% to 100% of the corresponding theoretical maximum for the hydrate and ranged in size from about 1600 to 2200 w...
متن کاملDetection and Production of Methane Hydrate
We develop a relationship between the sulfate-methane transition (SMT) and average gas hydrate saturation (AGHS) for systems dominated by methane migration from deeper sources. The relationship is explained by a onedimensional numerical model that simulates gas hydrate accumulation in marine sediments. Higher methane fluxes result in shallow SMT depths and high AGHS, while lower methane fluxes ...
متن کاملOTC 19458 Numerical Simulation of Methane Hydrate Production from Geologic Formations via Carbon Dioxide Injection
Scientific and technological innovations are needed to realize effective production of natural gas hydrates. Whereas global estimates of natural gas hydrate reservoirs are vast, accumulations vary greatly in nature and form. Suboceanic deposits vary from disperse concentrations residing at low saturations in the pore space of unconsolidated sediments with sand-sized particles to higher concentr...
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ژورنال
عنوان ژورنال: Journal of the Japanese Association for Petroleum Technology
سال: 2009
ISSN: 0370-9868,1881-4131
DOI: 10.3720/japt.74.297