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Keywords: approximation
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Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200649-MS
... shut in made since the completion of the well, where it has been observed that the reservoir pressure has fallen approximately 120 kg/cm 2 (1,706 psi) with a cumulative production of 0.532 million barrels of oil; besides the condition of production of low salinity formation water that acts as "bad...
Proceedings Papers

Paper presented at the SPE Europec featured at 78th EAGE Conference and Exhibition, May 30–June 2, 2016
Paper Number: SPE-180149-MS
... these solutions to problems with heterogeneity and complex fractured well geometry. Upstream Oil & Gas calculation Drillstem Testing reference solution Artificial Intelligence approximation boundary condition data mining welltest derivative drillstem/well testing asymptotic pressure...
Proceedings Papers

Paper presented at the EAGE Annual Conference & Exhibition incorporating SPE Europec, June 10–13, 2013
Paper Number: SPE-164922-MS
... Artificial Intelligence Upstream Oil & Gas optimal extraction path model approximation average-price scenario risk tolerance Scenario portfolio recommendation price path reserve replacement unconventional resource economics risk propensity price path uncertainty sensitivity analysis high...
Proceedings Papers

Paper presented at the EAGE Annual Conference & Exhibition incorporating SPE Europec, June 10–13, 2013
Paper Number: SPE-164880-MS
... that simulation times are not prohibitive. This has led a number of people to consider ways of simplifying the problem. One of these approaches is to consider the vertical equilibrium approximation, which assumes that the fluids separate instantaneously. Flow functions may then be integrated in the vertical...
Proceedings Papers

Paper presented at the SPE Europec/EAGE Annual Conference, June 4–7, 2012
Paper Number: SPE-154532-MS
.... The Eikonal equation generalizes the depth of investigation for heterogeneous reservoirs and provides a convenient way to calculate drainage volume. From drainage volume calculations, we estimate a generalized pressure solution based on a geometric approximation of the drainage volume. A major advantage...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, May 23–26, 2011
Paper Number: SPE-143606-MS
... technique were applied to check the consistency of Kozeny’s approximated relative permeability model. Relative permeability predicted from Kozeny’s approximation was compared with permeability predicted from Lattice-Boltzmann flow simulation as well as with laboratory measured data. Relative permeability...
Proceedings Papers

Paper presented at the EUROPEC/EAGE Conference and Exhibition, June 8–11, 2009
Paper Number: SPE-121484-MS
... based correlation is able to provide an excellent estimation of the viscosity (with average absolute deviations below 5 %) of pure compounds including normal-alkanes, CO2 or even H2S whatever the thermodynamic conditions, gas, liquid or supercritical. Then, using a one-fluid approximation and a set...
Proceedings Papers

Paper presented at the EUROPEC/EAGE Conference and Exhibition, June 11–14, 2007
Paper Number: SPE-107511-MS
... of Koldoba & Koldoba approach 7 . The model allows for receiving phase equilibrium curves and other thermodynamic functions in analytical form, thus it achieves the thermodynamic agreement of system and greatly reduces the required computing resources. streamline simulation approximation...
Proceedings Papers

Paper presented at the SPE Europec/EAGE Annual Conference and Exhibition, June 12–15, 2006
Paper Number: SPE-100217-MS
... Intelligence influence diagram approximation application Screening decision-making Symposium integration reservoir Alvarado diagram society of petroleum engineers enhanced recovery Simulation evaluation analytical simulation surfactant polymer flooding Copyright 2006, Society of Petroleum...
Proceedings Papers

Paper presented at the SPE Europec/EAGE Annual Conference, June 13–16, 2005
Paper Number: SPE-94153-MS
...- steady-state pressure equations are solved using combinations of exact solutions around the well in an infinite reservoir and additional solutions to the Laplace equation are introduced to approximate the boundary conditions. The pressures and rates for all the flowing wells are solved in a single step...
Proceedings Papers

Paper presented at the SPE European Petroleum Conference, October 24–25, 2000
Paper Number: SPE-65161-MS
... of the approach see e.g. Bazaraa et al.2 approximation point well performance linear programming objective new mathematical technique approximation linear approximation mathematical model spe 65161 production system gas injection fulfil performance surface allocation upstream oil & gas...
Proceedings Papers

Paper presented at the European Petroleum Conference, October 20–22, 1998
Paper Number: SPE-50574-MS
... approximation synthetic data modeling error upstream oil & gas true permeability distribution approximation capillary pressure heterogeneity permeability distribution homogeneous permeability approximation flow in porous media leverett j-function mannseth grid block flow function fluid...
Proceedings Papers

Paper presented at the European Petroleum Conference, October 20–22, 1998
Paper Number: SPE-50623-MS
.... 487 flow in porous media drillstem testing reservoir payzone hydraulic fracturing vertical well injection rate skin value hydraulic fracture equation fluid dynamics approximation pressure drop fracture vrblk water injection extension injection mode upstream oil & gas...
Proceedings Papers

Paper presented at the European Petroleum Conference, October 21–24, 1990
Paper Number: SPE-20899-MS
... approximation and the fully diffuse-flow approximation. The predictions of these models may differ predictions of these models may differ considerably and a good criterium to judge the validity of the approximations is not available. A new 2-D analytical model has been developed that takes into account both...
Proceedings Papers

Paper presented at the SPE European Spring Meeting, April 8–9, 1976
Paper Number: SPE-5760-MS
..., the assumption is made that the effective stress* (1) plasticity numerical analysis vertical pressure approximation Offshore Structure spe 5760 Upstream Oil & Gas Lewis special reference Artificial Intelligence pore pressure application total stress total stress analysis Zienkiewicz...

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