... recovery numerical simulation fluid dynamics base-case condition permeability water oil displacement flow perpendicular perpendicular cross section water saturation foreset laminae transition upstream oil & gas displacement characteristic pseudoproperty grid simulation crossbedded...

... by distilled water, nitrogen, and superheated steam at temperatures up to 540°F [282°C]. Starting from irreducible water saturation, relative permeability ratio curves were similar to Edmondson's. Starting from 100% oil saturation, however, the curves changed significantly only at low water saturations...

... 1985 Copyright 1985, Society of Petroleum Engineers spe reservoir engineering tangent welge discontinuity enhanced recovery tangent method fluid dynamics water saturation analytical solution mohsen modification trans reservoir simulation saturation initial saturation...

... is flowable in the presence of a high water saturation. The remainder resides in locations that are blocked by water, but can be recovered, the author believed, by molecular diffusion into the flowing propane of a water/propane displacement. He also found that higher water saturations both increase the amount...

... equilibrium value 8 10 1982 23 3 1984 3 11 1983 1 2 1985 1 2 1985 Copyright 1985, Society of Petroleum Engineers iteration interface saturation upstream saturation geometry pore space procedure pore fluid dynamics water saturation capillary pressure term...

... flow vector finite element saturation approximation mesh finite-element approximation linear system global pressure saturation equation water saturation equation saturation map upstream oil & gas heterogeneity effect vector field petroleum engineer journal boundary two-dimensional...

... of Petroleum Engineers experiment oil saturation saraf water saturation residual oil saturation gas relative permeability water relative permeability gas saturation fluid dynamics oil relative permeability assumption enhanced recovery flow in porous media oil isoperm isoperm permeability...

... error enhanced recovery viscosity ratio reservoir simulation flow rate error analysis flow in porous media estimation penneability fluctuation random number water saturation measurement error oil production fluid dynamics artificial intelligence standard deviation machine learning...

..., and to a lesser extent, to timestep size. The steam mole fraction increases initially (from near zero) as the temperature increases. When the gas saturation starts to increase, most of the gas phase is steam. At PVI > 0.21, steam forms the bulk of the gas phase. The initial water saturation increases...

... permeabilities on samples containing nearly irreducible water saturations and the water permeabilities presented are closer to the Klinkenberg permeability values in low-permeability samples than most previously reported. (3) 2 [ − K 2 p D e + ( K 0 + K 2 ) tanh...

...D. L. Tiffin; W. F. Yellig Miscible gas flooding using an alternate gas/water injection process (AGWIP) is presently being applied for enhanced oil recovery (EOR) in several waterflooded reservoirs. 1 – 4 A mobile-water saturation in the vicinity of the miscible displacement front can occur...

..., and viscous forces. Both the fracture flow equations and matrix/fracture flow are solved implicitly for pressure, water saturation, gas saturation, and saturation pressure. We present example problems to demonstrate the utility of the model. These include a comparison of our results with previous results...

... of the three parameters have been evaluated as functions of the displacement velocity and of the water saturation within four carbonate cores composed of various amounts of matrix, vug, and fracture porosity. Numerical simulation of a composite core made by stacking three of the individual cores has been...

... correlations were developed that relate the imbibition relative permeabilities, apparent viscosity, residual oil, and water saturations to the interfacial tension through the capillary number ( N c = vμ / σ ). They require two empirical, experimentally generated coefficients. The experimental results show...

... engineering, and geological purposes. This paper describes an improved technique that provides a more precise determination of "pore water" to the exclusion of clay water, water of hydration, etc. This, in turn, can improve the accuracy of porosities and associated oil and water saturation values when...

... waterflooding crude oil oil recovery surfactant saturation alkaline flood displacement mobility ratio residual oil saturation chemical flooding methods upstream oil & gas alkaline flooding water saturation mol dm 3 acid enhanced recovery concentration oil production flow in porous media...

... the entire water saturation range. In many of the tests, the presence of flowing polymer or its residual effect during subsequent brine flow had no effect on oil relative permeability. In several tests, polymer contact actually improved oil mobility through increases in oil relative permeability at all...

... ) b ( Δ p q ) , where (qμ /Δ p) b is the single-phase data representative of the core absolute permeability to water. In the usual manner, the outlet face water saturation S g 2 is obtained from a plot of average gas saturation S ¯ g vs. cumulative gas...

... Fluid Dynamics flow rate discontinuity Upstream Oil & Gas Oil saturation profile water hump saturation initial condition flow in porous media Saturation profile water saturation oil water bank propagation hump enhanced recovery fractional flow behavior fractional flow curve oil...

... to obtain an implicit equation for the oil-phase pressure, an explicit equation for the over-all composition of each hydrocarbon component, an explicit water saturation equation, and explicit oil-gas saturation equations that satisfy thermo-dynamic equilibrium. Equations for oil pressure, water saturation...