Results 31 to 40 of about 43,805 (310)
Isotopic fractionation of methane and ethane hydrates between gas and hydrate phases [PDF]
, 2007 Isotopic fractionation of carbon and hydrogen in methane and ethane during the formation of gas hydrates was investigated. The gas hydrate samples were experimentally prepared in a pressure cell and isotopic compositions of both residual and hydrate ...
Takahashi, Nobuo +7 more
core +1 more source
Laboratory Study on Hydrate Production Using a Slow, Multistage Depressurization Strategy
Geofluids, 2021 Optimization of the depressurization pathways plays a crucial role in avoiding potential geohazards while increasing hydrate production efficiency. In this study, methane hydrate was formed in a flexible plastic vessel and then gas production processes ...
Yanlong Li +7 more
doaj +1 more source
Energy Reports, 2022 Numerical investigations on a novel technique of controlled microwave heating with depressurization, applied to gas recovery from methane hydrate reservoirs are performed.
Rahul Yadav +3 more
doaj +1 more source
High-pressure gas hydrates [PDF]
Phys. Chem. Chem. Phys., 2008 It has long been known that crystalline hydrates are formed by many simple gases that do not interact strongly with water, and in most cases the gas molecules or atoms occupy 'cages' formed by a framework of water molecules. The majority of these gas hydrates adopt one of two cubic cage structures and are called clathrate hydrates.
Loveday, J. S., Nelmes, R. J.
openaire +4 more sources
Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Experimental Investigation into the Combustion Characteristics of Propane Hydrates in Porous Media
Energies, 2015 The combustion characteristics of both pure propane hydrates and the mixtures of hydrates and quartz sands were investigated by combustion experiments. The flame propagation, flame appearance, burning time and temperature in different hydrate layers were
Xiang-Ru Chen +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source
Joint seismic/electrical effective medium modelling of hydrate-bearing marine sediments and an application to the Vancouver Island margin [PDF]
, 2008 Remote determination of the hydrate content of marine sediments remains a challenging problem.In the absence of boreholes, the most commonly used approach involves the measurement of Pwavevelocities from seismic experiments.
Best, A.I. +4 more
core
, 2012 Active gas venting occurs on the uppermost continental slope off west Svalbard, close to and upslope from the present-day intersection of the base of methane hydrate stability (BMHS) with the seabed in about 400 m water depth in the inter-fan region ...
Masson, Douglas G. +7 more
core +1 more source
Geochemistry of pore waters from gas hydrate research in the eastern margin of the Japan Sea (MD179) [PDF]
, 2012 Pore waters collected from the eastern margin of the Japan Sea including gas hydrate fields off Joetsu were analyzed for concentrations of major and minor dissolved species in order to characterize fluid migration in high methane potential area.
村松, 康行 +6 more
core +1 more source