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Thermodynamics and phase behavior

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Journal Articles
SPE J. 25 (05): 693–703.
Paper Number: SPE-12586-PA
Published: 01 October 1985
... the viewpoint of chemical thermodynamics, the number of chemical species is very large if we consider every species of which oil, surfactant, and cosurfactant are made. Fortunately, some of these species behave collectively, so they can be considered a single pseudocomponent in the phase behavior description...
Journal Articles
Journal: SPE Journal
SPE J. 23 (06): 1977–1990.
Paper Number: SPE-175135-PA
Published: 23 August 2018
... of capillary pressure on phase behavior is necessary for reliable modeling of unconventional shale-gas and tight-oil reservoirs. As the main finding of this paper, first we show that the tangent-plane-distance method cannot be used to determine phase stability and present a rigorous thermodynamic analysis...
Journal Articles
Journal: SPE Journal
SPE J. 21 (01): 190–207.
Paper Number: SPE-176015-PA
Published: 18 February 2016
..., and fluid dissolution in kerogen to estimate fluid-in-place in shale media. We combine the classical thermodynamic approach for phase-behavior description in pores greater than 10 nm and dissolution in kerogen and the statistical thermodynamic approach in pores less than 10 nm. We mostly focus on the use...
Journal Articles
SPE J. 25 (02): 235–254.
Paper Number: SPE-10268-PA
Published: 01 April 1985
... when IFT are to be predicted along with phase behavior. SPEJ P. 235^ Thermodynamic Modeling of Phase and Tension Behavior of -C02/Hydrocarbon Systems Muhammad Sahimi, * U. of Minnesota H. Ted Davis, SPE, U. of Minnesota L.E. Scriven, SPE, U. of Minnesota Abstract The gradient theory of inhomogeneous...
Journal Articles
SPE J. 22 (06): 945–961.
Paper Number: SPE-10062-PA
Published: 01 December 1982
... triangle critical endpoint upstream oil & gas equilibrium pvt measurement fraction progression tieline Thermodynamic Modeling of Pseudotemary Phase Behavior William R. Rossen, * U. of Minnesota Roger G. Brown, MTS Systems Corp. H. Ted Davis, SPE, U. of Minnesota Stephen Prager, U...
Journal Articles
SPE J. 21 (06): 747–762.
Paper Number: SPE-9351-PA
Published: 01 December 1981
... with exceptions.A mathematical framework is presented for modeling phase behavior in a manner consistent with the thermodynamically required critical tie lines and plait point progressions from the critical endpoints. Hand's scheme for modeling binodals and Pope and Nelson's approach to modeling the evolution...
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1993
Paper Number: SPE-26565-MS
... be considered. 2) Petroleum fluids are usually mixtures of many chemical species. As a result, thermodynamic and phase behavior prediction of multicomponent mixtures is required. 3) Over the pressure ranges of interest, the fluid may vary from a single phase liquid to a single phase vapor, with multiphase...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-100393-MS
... a numerical model for the OBM filtrate clean-up within the framework of an equation-of-state (EOS) compositional fluid-flow simulator. Our numerical framework simultaneously honors the physics of multi-component fluid flow and the thermodynamics of phase behavior. The numerical model was verified against...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-139
... simulator of coupled fluid flow, hydrate thermodynamics, and phase behavior in geologic media (TOUGH+HYDRATE) with an established geomechanical code (FLAC3D). We demonstrate the current simulator capabilities and applicability for two examples of geomechanical responses of hydrate bearing sediments during...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28519-MS
... to be released almost always results in sonic velocity at some restriction, and choked flow results. Gas dynamic effects must be considered. Petroleum fluids are usually mixtures of many chemical species. As a result, thermodynamic and phase behavior prediction of multicomponent mixtures is required. Over...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21248-MS
... is essential for ensuring flow assurance in submarine pipelines subject to cold sea-water temperatures. Wax precipitation and gelation is mainly driven by the thermodynamics and phase behavior induced by heat transfer occurring between the pipeline fluid and the surrounding sea-water environment. Cooling...
Journal Articles
Trans. 136 (01): 119–135.
Paper Number: SPE-940119-G
Published: 01 December 1940
... thermodynamic and phase behavior, the use of the absolute, Rankine, scale is desirable. Volume is expressed as specific volume, such as cubic feetper pound. This will be recognized as the reciprocal of the specificweight. T.P. 1152 1 12 1940 1 12 1940 1940. Original copyright American Institute...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-17026-MS
..., transport, thermodynamics, and phase behavior, including the construction of large meshes, the computational scaling of larger systems, and the complexity and resource-intensiveness of large-scale volume visualization of unstructured meshes. Introduction Gas hydrates are solid crystalline compounds...
Journal Articles
SPE Res Eval & Eng 11 (02): 219–232.
Paper Number: SPE-100393-PA
Published: 24 April 2008
... simulator. The numerical cleanup model honors the physics of multicomponent-fluid flow and the thermodynamics of phase behavior. Simulation results exhibit close agreement with analytical predictions and with field data for the time dependence of contamination during sampling. First-order impact parameters...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 3–6, 2008
Paper Number: SPE-118133-MS
... sampling only. An EOS type simulator was used to tune the EOS parameters to laboratory experimental data to simulate physical properties for different conditions. Phase envelope, thermodynamic properties, phase behavior data at the sampling and ambient conditions were simulated for each sample. Reviewing...
Proceedings Papers

Paper presented at the International Oil Conference and Exhibition in Mexico, August 31–September 2, 2006
Paper Number: SPE-103900-MS
... to the bubble point pressure of a fluid at the given temperature.6 Figure 8: Isothermal Depressurization of Fluid A at 130oF. The thermodynamic asphaltene phase behavior was conducted using PC-SAFT EOS model. The detailed modeling principles and assumptions can be found in references Ting et al.7, 2003...
Journal Articles
SPE J. 25 (03): 330–342.
Paper Number: SPE-11209-PA
Published: 01 June 1985
... equation spinodal base case binary edge four-phase equilibria phase diagram pvt measurement ternary face alcohol tetrahedron parameter value phase behavior surfactant multiphase equilibria quaternary system composition upstream oil & gas brine phase equilibria Thermodynamic...
Proceedings Papers

Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98586
... temperature could be easily determined. Though the phase behavior for ammonium chloride has been thoroughly studied , the thermodynamic data that defines the phase behavior for commonly used organic amines was not available. A rigorous research effort was undertaken to generate these vital amine salt data...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1745
... experience and the phase behavior of CO 2 rich systems. Estimation of transport properties around the critical point and phase boundaries is particularly difficult. Benchmarked thermodynamic and transport property correlations are available in the public domain, published by the numerous research groups...

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