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Keywords: dissociation
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Journal Articles
J Pet Technol 65 (07): 77–80.
Paper Number: SPE-0713-0077-JPT
Published: 01 July 2013
... periods of time from some methane-hydrate accumulations by means of depressurization-induced dissociation. However, most assessments of hydrate production use simplified or reduced-scale 3D or 2D production simulations. This study used a message-passing-interface parallel code to make the first field...
Journal Articles
J Pet Technol 64 (11): 129–133.
Paper Number: SPE-1112-0129-JPT
Published: 01 November 2012
... media. Under standard T and P (STP) conditions, each cubic meter of simple CH 4 hydrate releases, upon dissociation, approximately 164 m 3 of methane and 0.8 m 3 of H 2 O. Classification. Natural GH accumulations are divided into three main classes on the basis of simple geologic features and initial...
Journal Articles
J Pet Technol 61 (04): 48–50.
Paper Number: SPE-0409-0048-JPT
Published: 01 April 2009
.... Numerical Modeling of Gas-Hydrate Risk Gas hydrates are composed of gas molecules trapped in a solid lattice of water molecules. Dissociation of the gas hydrate occurs on heating and releases gas and water. At 1000-m water depth, which is typical for the Gumusut-Kakap field, one unit vol- ume of solid...
Journal Articles
J Pet Technol 60 (09): 94–99.
Paper Number: SPE-0908-0094-JPT
Published: 01 September 2008
... reviewed. The MH21 Research Consortium of Japan evaluated methane-hydrate (MH) reservoirs in the eastern Nankai trough from the viewpoints of geology, geophysics, petrophysics, and reservoir/production engineering. The applicability of several MH-dissociation/-production methods to these MH reservoirs...
Journal Articles
J Pet Technol 60 (07): 82–84.
Paper Number: SPE-0708-0082-JPT
Published: 01 July 2008
.../-pressure conditions. Some modeling suggests that the energy needed for dissociation could be less than 15% of the recovered energy. Natural-gas hydrates also can contain other hydrocarbons (alkanes), but may also comprise lesser amounts of other gases (mainly CO 2 , H 2 S, or N 2 ). The full-length paper...
Journal Articles
J Pet Technol 59 (08): 69–73.
Paper Number: SPE-0807-0069-JPT
Published: 01 August 2007
... for production and/or only a fraction of the trapped gas can be recovered. The attractiveness of hydrates is further enhanced by the environmental desirability of natural-gas (as opposed to solid or liquid) fuels. Gas can be produced from hydrates by inducing dissociation, which also releases large amounts of H...
Journal Articles
J Pet Technol 58 (08): 65–67.
Paper Number: SPE-0806-0065-JPT
Published: 01 August 2006
..., the hydrate is trapped between clay layers or other low-permeability structures. Gas hydrate exposed to the seafloor will dissociate because of the very-low hydrocarbon content in the surroundings. Though some of the released methane will be consumed by biological and chemical ecosystems, the methane reaching...
Journal Articles
J Pet Technol 54 (01): 41–42.
Paper Number: SPE-0102-0041-JPT
Published: 01 January 2002
... survey hole flow assurance core sampler hydrate formation technology conference polyvinyl caprolactam drilling operation exploration dissociation hydrate offshore japan well control deepwater sediment well logging upstream oil & gas offshore japan hydrate zone hydrate-rich sand log...
Journal Articles
J Pet Technol 43 (12): 1414–1417.
Paper Number: SPE-23562-PA
Published: 01 December 1991
.... On amacroscopic level, hydrate formation and dissociation may be considered using aphase diagram, such as Fig. 2. In this figure, pressure is plotted vs. temperature, with gas composition as a parameter, for methane/propane mixtures. Consider a gas of any composition given on a line in Fig. 2. At conditions tothe...
Journal Articles
J Pet Technol 39 (11): 1379–1388.
Paper Number: SPE-13596-PA
Published: 01 November 1987
...Vidyadhar A. Kamath; Sanjay P. Godbole Summary. Thermally efficient production of natural gas can be accomplished by the use of hot brine to dissociate solid gas hydrate deposits in the earth. The advantages of brine stimulation over steam or hot-water injection are lower energy requirements...
Journal Articles
J Pet Technol 34 (05): 1127–1132.
Paper Number: SPE-8929-PA
Published: 01 May 1982
..., calculations were made to determine the energy needed to dissociate hydrates and the amount of gas recovered per gmol of hydrate dissociated. Nature of Gas Hydrates Two strictures of gas hydrates called structures 1 and 2 are known to form from mixtures of water and light gases. Each of these structures has...
Journal Articles
J Pet Technol 17 (05): 585–588.
Paper Number: SPE-1039-PA
Published: 01 May 1965
... responsible for alteration of rock properties by heating include differential thermal expansion, dehydration, phase changes and dissociation of mineral constituents. Ceramists have long known that temperatures at which reactions occur can be raised or lowered by the presence of certain impurities...
Journal Articles
J Pet Technol 17 (05): 589–593.
Paper Number: SPE-907-PA
Published: 01 May 1965
... structural damage of rocks occurs due to differential thermal expansion of mineral constituents. A number of mineral alterations including crystal versions, loss of water of crystallization and dissociation, may also contribute to changes in physical structure and properties of rock. In the present work...

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