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Keywords: dissociation
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-134178-MS
... to track the phase transitions. 1-D core scale simulations shows that the energy produced from CO 2 -hydrate formation is utilized for methane-hydrate dissociation. The methane-hydrate dissociation front moves at a slow rate of approximately 1/40 cm/hr for the kinetics assumed in the base case. High mole...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124409-MS
... remediation of hydrates wellhead connector asphaltene inhibition hydrate dissociation riser hydrate seawater reaction fracture Methanol hydrate inhibition Upstream Oil & Gas inhibitor History cam-ring cavity hydrate formation spe 124409 dissociation gas hydrate cavity society...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-114375-MS
... characteristic observations were increase in average reservoir pressure during shut-in, perforation blocking due hydrate formation and no change in gas-water contact. It is believed the increase in reservoir pressure was caused by the hydrate layer dissociation, rather than aquifer influx. The objective...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116601-MS
... system pressure ch 3 calcite reaction reaction rate acid mixture dissolution carbonate reservoir organic acid dissociation formic acid hcoo production enhancement well intervention downhole intervention enhanced recovery Introduction Oil and gas companies are developing carbonate...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-110858-MS
.... In this numerical study of long-term gas production from permafrost Class 2 deposits, we investigate three different well configurations that involve different production intervals and combinations of depressurization (the main dissociation-inducing mechanism) with localized thermal stimulation. Using high...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102915-MS
... theory supported the measured results and predicted similar methane production rates observed in several reproduced experiments. methane dissociation hydrate hydrate growth magnetic resonance imaging experiment saturation flow assurance water saturation sandstone core plug fracture...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-97266-MS
... under conditions typical of natural CH 4 -hydrate deposits in complex formations. It includes both an equilibrium and a kinetic model 10 , 11 of hydrate formation and dissociation. The model accounts for heat and up to four mass components (i.e., water, CH 4 , hydrate, and water-soluble inhibitors...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-89989-MS
... the amount of hydrate formed. Furthermore, the use of this specific emulsifying system allows to avoid agglomeration of droplets in the fluid as well as the breakage of emulsions after hydrate dissociation. exothermic peak drilling fluid property hydrate upstream oil & gas heating phase...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-90743-MS
... on-shore (under the permafrost), and off-shore (in marine sediments). In this study, a 2-D pore-network simulation based on concepts from Invasion Percolation in a Gradient is discussed to study the dissociation of methane hydrate in porous media. By using reported experimental values of porosity...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 2003
Paper Number: SPE-84315-MS
... effects and safety problems, like modification of mud rheological properties, interruption of the drilling operations due to plugging and even destruction of rig equipment when gas hydrates dissociate. Propulsion of gas hydrate plugs at very high velocity is also a great risk. To prevent these problems...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 29–October 2, 2002
Paper Number: SPE-77334-MS
... provide the world with gas for 180 years at the current level of energy consumption. composition hydrated state prevention mechanism natural gas flow assurance energy content consumption specific energy concentration hydrate formation dissociation transmission makogon gas monetization...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-62962-MS
... to determine the dangerous zones for hydrate formation. oilfield chemistry formulation calorimetry dissociation drilling mud flow assurance thermogramme emulsion characterize hydrate formation spe 62962 differential crucible dalmazzone oil-base mud determination drilling fluids...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56550-MS
... were also investigated for production from the solid hydrate layer itself, using horizontal wells and various ways of dissociating the naturally occurring gas hydrates. Important findings from these investigations are the role of excessive water production and the requirement for water handling...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56568-MS
... Abstract This work presents new data on the kinetics of gas hydrate formation and dissociation for methane with water and seawater, with thermodynamic and kinetic inhibitors in static and in dynamic conditions, and several results of the morphology study of gas hydrate crystals. Effective...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1996
Paper Number: SPE-36742-MS
... phase diagram molecule upstream oil & gas hydrocarbon composite phase diagram spe 36742 implication equilibria flow assurance prediction guest molecule equilibrium data sh hydrate hydrate sloan methane mehta dissociation hydrate formation petroleum industry ripmeester...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–26, 1990
Paper Number: SPE-20770-MS
... of these inhibitors on the rate of formation or dissociation of gas hydrates, the current industrial methods of prevention or control of hydrate formation have relied upon the thermodynamic data rather than the kinetic data. Inhibitor Injection for Production of Gas From Hydrates Extensive deposits...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1987
Paper Number: SPE-16671-MS
... drilling fluid with higher mud weight at high circulation rates is used to slow or prevent hydrate dissociation in the formation. Panarctic Oils Ltd., alternatively, tries to promote the dissociation at early times while the drill pipe is in the hole by using low weight muds with proper degassing equipment...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 1982
Paper Number: SPE-11105-MS
... to 30% of the total gas production. This is due to hydrate dissociation as the pressure in the reservoir is reduced. These percentages represent an estimate for a gas reservoir which is produced at the rate of 2.5 MMCFD. The thermal capacity of the reservoir is more than sufficient to provide the energy...

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