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Hydrate formation/dissociation of natural gas in (diesel oil + water) emulsion systems containing 3 wt% anti … components also exists during the hydrate formation process. The experiments on hydrate dissociation showed that the dissociation … process of natural gas hydrate formation and dissociation in emulsion systems were also examined. …
Persistent link: https://www.econbiz.de/10010676056
, by gas hydrate dissociation. It has been reported that during the past 55 years (1955–2010) the 0–2000 m layer of oceans … sediments, thermal dissociation of gas hydrates, excess pore pressure generation, pressure diffusion, and hydrate dissociation …
Persistent link: https://www.econbiz.de/10011030710
Methane hydrate formation and dissociation kinetics were investigated in seawater-saturated consolidated Ottawa sand …-pack under sub-seafloor conditions to study the influence of effective pressure on formation and dissociation kinetics. To … increasing degree of consolidation. Hydrate dissociation by step-wise depressurization was instantaneous, emanating …
Persistent link: https://www.econbiz.de/10011030918
The formation of methane hydrate in two significantly different media was investigated, using silica gel as an artificial medium and loess as a natural medium. The methane hydrate formation was observed through the depletion of water in the matrix, measured via the matrix potential and the...
Persistent link: https://www.econbiz.de/10010668070
Gas hydrate formation processes in porous media are always accompanied by water transfer. To study the transfer characteristics comprehensively, two kinds of layered media consisting of coarse sand and loess were used to form methane hydrate in them. An apparatus with three PF-meter sensors...
Persistent link: https://www.econbiz.de/10010668110
Over the last decade global natural gas consumption has steadily increased since many industrialized countries are substituting natural gas for coal to generate electricity. There is also significant industrialization and economic growth of the heavily populated Asian countries of India and...
Persistent link: https://www.econbiz.de/10010668149
depressurization-induced dissociation can be a promising technique. In this study, a 2D axisymmetric model for simulating the gas … dissociation simulations are performed by reducing the initial system pressure with the same depressurizing range initially, then …
Persistent link: https://www.econbiz.de/10010676048
dissociation behavior by depressurization is studied in a one-dimensional experimental apparatus. According to time variation of … temperature, resistance and gas production, the hydrate dissociation process is divided into three stages: free gas release, rapid … dissociation and gradual dissociation. The experimental results show that as the hydrate saturation increases the proportion of …
Persistent link: https://www.econbiz.de/10010676085
A constitutive model for marine sediments containing natural gas hydrate is essential for the simulation of the geomechanical response to gas extraction from a gas-hydrate reservoir. In this study, the triaxial compressive properties of artificial methane-hydrate-bearing sediment samples...
Persistent link: https://www.econbiz.de/10011030764
This article reports our novel idea about the thermal stimulation of seabed hydrate reservoirs for the purpose of natural gas production. Our idea is to use submarine heat pumps, which are to be placed near the hydrate reservoir and work to recover thermal energy from the surrounding seawater...
Persistent link: https://www.econbiz.de/10011031034