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Keywords: composition
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Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203914-MS
... Abstract Equation-of-state (EOS) compositional simulation is commonly used to model the interplay between phase behavior and fluid flow for various reservoir and surface processes. Because of its computational cost, however, there is a critical need for efficient phase-behavior calculations...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203956-MS
... − 3 B 2 ) Z + ( A B − B 2 − B 3 ) = 0 where, A = a α P R 2 T 2 B = b P R T The following composition-dependent mixing rule is applied to calculate a and b , (16) a = ∑ x i a i j (17...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203978-MS
..., and it ensures continuity of transport characteristics at solubilization changes in phase composition. fluid dynamics composition quantity saturation upstream oil & gas phase transition miscible term expression reservoir simulation phase state discontinuity algorithm flow in porous media...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193865-MS
..., therefore their model does not capture any change in the potential with the changes in the ionic strength or water composition. This makes the model unable of explaining the increasing weakening at increasing sulfate concentration. Madland et al., 2011 proposed a 1D mathematical model composed...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193888-MS
... calculation composition dew point pressure Upstream Oil & Gas stability analysis water saturation saturation capillary equilibrium stationary point fraction Michelsen reservoir simulation psia gibb free energy algorithm tangent plane distance binary mixture capillary pressure multi...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193909-MS
... for an appropriate slug size design of low-salinity injection. Lastly, we observe that dispersion does not affect the ultimate oil recovery during wettability alteration as compared to reaction kinetics. waterflooding Austad carbonate brine composition Modeling & Simulation reaction kinetic reaction...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193898-MS
... equilibrium, chemical equilibrium, and chemical kinetics which are strong functions of pressure, temperature and composition. Therefore, for accurate modeling of such systems, one needs to couple these effects with flow and transport which requires solving multiple nonlinear governing equations. One...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182668-MS
... processes . Fuel , 2017 . 188 : p. 50 – 60 . [40] Blackmore , T. , D. Murray , and A. Lemieux , Light Ends Composition in Dilbit and Conventional Crudes . Alberta Innovates Energy and Environment Solutions , 2014 . [35] Reid , R.C. , J.M. Prausnitz , and B.E. Poling...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182679-MS
... Abstract Compositional simulation is attractive for a wide variety of applications in reservoir simulation and it is especially valuable when modeling gas injection for enhanced oil recovery. Since the nonlinear behavior of gas injection is sensitive to the resolution of the simulation grid...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182592-MS
... Abstract This paper presents new coupled three-phase relative permeability and capillary pressures models for implementation in a four-phase flow compositional EOS simulator. Identification of hydrocarbon and aqueous phases based on their molar Gibbs free energy is a key feature of the new...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182603-MS
... Abstract Interest in understanding the underlying physical mysteries that result in production from liquid rich shale (LRS) reservoirs is growing globally. Compositional modeling of fractured multiphase shale reservoirs is a complex process that is yet to be fully understood. Our quest...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182594-MS
... of Péclet numbers is also examined. Modeling & Simulation Péclet number diffusion coefficient reservoir simulation calculation enhanced recovery Upstream Oil & Gas computational time Artificial Intelligence Firoozabadi composition gas injection moortgat péclet number diffusion...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182655-MS
... are modelled to be independent of labeling and saturation paths. Furthermore, the impact of phase compositions on relative permeabilities was implemented by modelling phase wettability and interfacial tensions compositionally. In addition, the hysteresis effects on relative permeability model were added...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182651-MS
... is ruled by the Poisson Boltzmann problem which is also dictated by the magnitude of the surface charges at the two walls. This local charge is ruled by the composition of the brine and the chemical reactions that take place in the oil/water and clay/water interfaces [ 5 ][ 7 ][ 29 ]. Carboxylic material...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182648-MS
... calculations for the three hydrocarbon phases (LLV). Several algorithm improvements have been made to ensure stability and robustness of the flash engine over the full range of pressure and composition variation, without sacrificing computational efficiency. Secondly, a novel fit-for-purpose algorithm has been...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182643-MS
... dimeters. This effect can result in a composition difference between pores with large and small diameters in shale reservoirs (sieving effect), with small pores mostly filled with smaller hydrocarbon molecules and large molecules residing in larger pores. To account for such a diverse behavior, this paper...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182703-MS
... in a straightforward and efficient implementation of published PVT correlations as well as fast convergence. A new three-layer pseudo component framework (i.e., phase – pseudo component – pure component) has been adopted to effectively model a group of pure components that can have the same composition and properties...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182685-MS
... Abstract The nonlinear nature of flow and transport in porous media requires a linearization of the governing numerical model equations. We propose a new linearization approach and apply it to complex thermal-compositional problems of practical interest. The approach approximates exact physics...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182725-MS
... Abstract Enhanced Oil Recovery (EOR) processes involve complex flow, transport, and thermodynamic interactions; as a result, compositional simulation is necessary for accurate representation of the physics. Flow simulation of compositional systems with high-resolution reservoir models...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 23–25, 2015
Paper Number: SPE-173308-MS
... composition, (b) an absence of facility level reporting of production forecasts and number of wells required for each facility, and (c) a lack of detail in surface compositional reporting for each facility. In order to address these shortcomings, a new modeling approach based on IAM has been used...

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