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Keywords: stability analysis
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Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203914-MS
... tuning for fluid characterization. machine learning upstream oil & gas training data monahan clearfork oil artificial intelligence stability analysis composition fraction pvt measurement composition absolute difference peng-robinson eos predictor variable fugacity coefficient proxy...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193888-MS
... 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-component mixture...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182706-MS
... equation of state equilibrium isothermal PVT measurement stability analysis fluid modeling Upstream Oil & Gas phase fraction composition derivative matrix phase equilibria fugacity coefficient successive substitution Artificial Intelligence Gibb energy dependent phase method...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, February 20–22, 2017
Paper Number: SPE-182662-MS
... stability analysis of the foam model is presented, to validate the simulation results and lay a foundation for a tailor-made solver, which can both handle large-scale reservoir simulations and accurately resolve front instabilities. We study the effect of a strongly non-monotonous total mobility function...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 18–20, 2013
Paper Number: SPE-163598-MS
... here. Since GPRS is essentially based on natural variables, the phase split calculation is of minor importance. We have therefore only focused on the thermodynamic property package and the stability analysis strategy. For this purpose we used the C++ version of the thermodynamic libray originally...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 18–20, 2013
Paper Number: SPE-163627-MS
.... flow in porous media injector stencil reservoir simulation stability analysis flux calculation velocity-dependent mobility mobility Upstream Oil & Gas discretization semi-implicit scheme pressure gradient stability parameter equation Modeling & Simulation Fluid Dynamics...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 18–20, 2013
Paper Number: SPE-163676-MS
... for stability analysis and flash calculations. Therefore, speeding up stability analysis and flash calculations is an active research area. Recently, the tie-simplex based phase behavior modeling in reservoir simulators has been applied and investigated as a potential method for improving the computational...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 21–23, 2011
Paper Number: SPE-142132-MS
.... The shadow region method reduces the computation time mainly by skipping stability analysis for a large portion of compositions in the single phase region. In the two-phase region, a highly efficient Newton-Raphson algorithm can be employed with initial estimates from the previous step. The CSAT method saves...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 2–4, 2009
Paper Number: SPE-119084-MS
... strongly recommend the fixed-stress split. These results have immediate and widespread applicability in the design of reservoir flow simulators that account for geomechanics. Reservoir Characterization Artificial Intelligence reservoir geomechanics stability analysis time step size fixed-stress...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, January 31–February 2, 2005
Paper Number: SPE-93096-MS
... simulation models, we start with the most general multiphase multicomponent model framework and derive stability criteria using Fourier stability analysis on the equations to which explicit schemes are applied. Our approach takes into account all of the major mechanisms governing fluid flow, i.e., convection...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Symposium, February 11–14, 2001
Paper Number: SPE-66345-MS
... number must be < 1 or < 2 for stability. A recent paper reported non-oscillatory stability of one- and two-dimensional Buckley-Leverett two-phase simulations for CFL < 2. A subsequent paper claimed to predict this CFL < 2 limit from a stability analysis. This work gives a different reason...
Proceedings Papers

Paper presented at the SPE Symposium on Reservoir Simulation, February 28–March 3, 1993
Paper Number: SPE-25245-MS
.... Grabenstetter. et al . 8 considered this problem with IMPES and AIM, but with a different fluid characterization. Their IMPES results required more time steps, because stability analysis was not used in their time step selection logic. Their IMPES results also required 2.4 times as many Newton iterations...
Proceedings Papers

Paper presented at the SPE Symposium on Reservoir Simulation, February 6–8, 1989
Paper Number: SPE-18416-MS
... eigenvalue cfl condition criterion analogue iteration upstream oil & gas cfl number united states government time step matrix stability analysis stability adaptive implicit method equation derivative jacobian composition coefficient dimension numerical dispersion simulator spe 18416...

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