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Keywords: equilibrium
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-221053-MS
... are determined by the dynamic phase equilibrium of multi-alkanes and the coupling of gas-liquid-solid multiphase flow, the dynamic phase equilibrium of multi-alkanes will directly relate to the fundamental physical properties of the subsequent multiphase flow process. This paper firstly establishes...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-215122-MS
... species. Development of such NB technologies depends on a proper understanding of thermodynamic properties of aqueous NB dispersion. The objectives of this research are to analyze the thermodynamic stability of aqueous NB dispersion and to apply a thermodynamic equilibrium model to analyze experimental...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214925-MS
... of pressure on both the interfacial tension and contact angle of CO 2 /brine/dolomite systems. We varied the zone permeability contrast ratio from 2 to 50. We then assumed capillary-gravity equilibriums and calculated the CO 2 saturation buildup corresponding to various trapped CO 2 column heights. The CO 2...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 16–18, 2023
Paper Number: SPE-214911-MS
... (LBM) is used to carry out simulations of multicomponent, multiphase hydrocarbon mixtures. The mixtures are simulated as partially miscible and a multicomponent equation of state (EOS) is incorporated into LBM through the fugacity. Vapor Liquid Equilibrium (VLE) cases and dynamic cases are presented...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206007-MS
... management upstream oil & gas equilibrium north sea brine brine stability thermal stability waterflooding baojun pressure gradient north sea seawater water flooding sciencedirect fractured core eqsr preformed particle gel reservoir formation water ht-ppg Introduction Excessive...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191531-MS
... depletion with very small pressure (equilibrium) steps. This gives relatively more accurate estimation of bubble point and GOR value. Once the synthetic live oil is formed, we pressurize the system to 8,000psi at 80C and form a gas cap of methane with initial pressure in the range of 8,500-9,000psi...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191697-MS
... times higher than traditional PPGs. In addition, the plugging efficiency of the RPPG is 20 times higher than 40 K. conformance improvement injection pressure enhanced recovery equilibrium baojun Particle Gel waterflooding Brine preformed particle gel re-crosslinking time Upstream Oil...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187287-MS
... are the convective solute flux and the volume flux across the membrane area described in the next section and C ∞ is the mean bulk concentration of the solute at equilibrium (ΔC ∞ = 0). Rearranging Eq. 16 yields (17) J s = ( 1 − σ f ) J v C ∞ , which, upon comparison...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187294-MS
... Abstract In the mathematical treatment and numerical simulation of hybrid recovery processes, specifically SAGD (Steam-Assisted Gravity Drainage) with solvents, instantaneous phase equilibrium is assumed. Previous studies by the authors, and others, show that this is not the case. Experimental...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187067-MS
... and fluid interaction under nano-confinement. shale oil PVT measurement preferential absorption oil shale bubble point equilibrium PVT property complex reservoir bubble point pressure shale gas Phase Behavior nitrobenzene kerogen Upstream Oil & Gas Pathak bottom hole pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181401-MS
... Abstract The development of reservoirs that are not in hydrostatic equilibrium or that have suffered deviations from primary drainage over geological time requires appropriate challenges to standard assumptions in order to optimize the field's full potential. Such circumstances are more...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181686-MS
... due to production, capillary pressure successfully reflects those changes. Upstream Oil & Gas Modeling & Simulation confinement PVT measurement calculation fraction equilibrium Phase Behavior compositional reservoir simulator liquid saturation reservoir society of petroleum...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181716-MS
... to yield bubble point pressures that are well matching the measured ones. Upstream Oil & Gas equilibrium competitive adsorption shale core PVT measurement adsorption pore fluid mixture equation liquid phase vapor phase th pore bulk space capillary pressure fluid modeling PVT cell...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175135-MS
... ) where capillary equilibrium is possible and derive the necessary equations to obtain this maximum capillary pressure. We also discuss the implementation of the capillary equilibrium in a general purpose compositional reservoir simulator and the numerical challenges involved with its application...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-178741-STU
... the film tension work in the Legendre transform that relates the Gibbs energy to the internal energy of the films. We show that for the purposes of finding the equilibrium state, the Legendre transform must include the film tension term so that the chemical potentials are equivalent to the partial molar...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170930-MS
... write the phase equilibrium relation as a pseudo-reaction as discussed by Nghiem et al. (2011) . For example, the following phase equilibrium relation is treated as a pseudo-reaction: CO 2 ( hc ) ↔ CO 2 ( aq ) . In this way, we can represent the mass transfer between all...

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