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Keywords: isotherm
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Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180229-MS
... samples using thermogravimetric analysis (TGA). The sorption isotherms generated are important to predict the gas storage capacity of the shale samples, while the study of adsorption/desorption dynamics/kinetics help us understand the role of desorption during the later times of gas production. A dynamic...
Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180216-MS
... such differences. This may lead to additional rock-typing techniques to better characterize the Eagle Ford oil play and improve well expected ultimate recovery (EUR) and economics. enhanced recovery equilibrium confinement Reservoir Characterization adsorption isotherm Upstream Oil & Gas...
Proceedings Papers

Paper presented at the SPE Low Perm Symposium, May 5–6, 2016
Paper Number: SPE-180234-MS
... control shale gas cumulative production Modeling & Simulation Upstream Oil & Gas production monitoring hydraulic fracturing adsorption isotherm initial production interference reservoir pressure Reservoir Surveillance complex reservoir gas production composition Pennsylvania...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-103180-MS
... coal bed methane Upstream Oil & Gas macroporosity coefficient uptake coal seam gas gas concentration poroelastic coal macropore coalbed methane carbon dioxide isotherm gas uptake solid material equation gas sorption complex reservoir concentration gas transport diffusion...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-107731-MS
... The NEBU isotherm and this example, labeled Scenario A, are depicted in Figure 1 . In this example, initial reservoir pressure was sufficiently high that gas content of a saturated coal falls on the isotherm plateau. A small undersaturation in gas, 10%, implies a significant undersaturation...
Proceedings Papers

Paper presented at the Rocky Mountain Oil & Gas Technology Symposium, April 16–18, 2007
Paper Number: SPE-107705-MS
... for CBM, with varying degrees of complexity. If gas composition changes as a function of depletion due to relative adsorption of the gaseous components 33 , the composite isotherm resulting from the match of produced gas compositions must also be used in the material balance calculations...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, March 19–22, 1995
Paper Number: SPE-29580-MS
... ABSTRACT A procedure is presented which allows forecasting long range performance of dewatered coal and fractured gas shale reservoirs having nonlinear adsorption isotherms, using constant pressure solutions to the flow equation for slightly compressible liquids. A correlation is presented...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, March 19–22, 1995
Paper Number: SPE-29578-MS
... ABSTRACT Earlier numerical models for coal seam gas reservoirs assume that at initial reservoir conditions coal is either on or above the sorption isotherm, i.e., either equilibrium or saturated conditions prevail. Therefore, when undersaturated conditions exist, implementation of these models...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, April 15–17, 1991
Paper Number: SPE-21880-MS
... ABSTRACT Water adsoiption/desorption (sorption) isotherms, surface-area measurements, and electron and optical microscopy all demonstrate the presence of significant microporosity in low permeability gas sands as exemplified by cores taken during the course of the Multiwell Field Experiment...
Proceedings Papers

Paper presented at the Low Permeability Reservoirs Symposium, April 15–17, 1991
Paper Number: SPE-21808-MS
... in this paper has the potential of providing the necessary tools that can be used in in-situ determination of the transport properties and the sorption characteristics of the coalbed methane reservoirs. pressure transient testing laplacian space upstream oil & gas coal seam isotherm application...
Proceedings Papers

Paper presented at the Symposium on Low Permeability Gas Reservoirs, May 20–22, 1979
Paper Number: SPE-7938-MS
... in a sphere is as follows: ............(1) The concentration of methane, C, is expressed as moles/unit volume of rock. The boundary conditions for this equation are as follows: ......................(2) P. 263 Upstream Oil & Gas Drillstem Testing psia reservoir simulation isotherm...

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