... Abstract Thermodynamic modeling of phase behavior is one of the most fundamental components in the study of enhanced oil recovery by gas injection. Robust algorithms exist for multiphase equilibrium problems with no capillary pressure as commonly used in compositional reservoir simulation...

... modeling flow in porous media euler characteristic oil saturation saturation capillary pressure partial derivative Introduction The flow of two or more phases in a porous medium is quantified through averaged transport properties such as relative permeability. Relative permeability...

... Abstract This paper demonstrates the effect of pore systems and mineralogy on imbibition capillary pressure (P ci ) of carbonate rocks. A systematic workflow is developed and followed to ensure the data quality of P ci , minimize uncertainty in deriving the P ci from centrifuge tests...

... Abstract Phase equilibrium of shale fluid is highly disturbed due to liquid adsorption and capillary pressure in densely-developed organic nanopores. And the miscibility phenomenon between gas and oil is also changed during gas injection for enhanced oil recovery (EOR). Therefore...

... permeability, capillary pressure) Boundary conditions (pressure, contacting fluid) Most of the required input were directly measured and are shown in Table 1 (core properties and boundary conditions) and Table 2 (fluid properties). Determination of saturation functions and gel properties required...

... to the polymer effect on the net foam generation and the limiting capillary pressure. The new model was implemented and used to history match foam coreflood experiments with and without polymer. In addition to the foam apparent viscosity increase due to higher viscosity of the aqueous phase, polymer also...

.... The solution for multiple wells is developed using superposition with a coning potential function that includes capillary pressure and relative permeability. The assumption of vertical equilibrium (VE) is made, which gives maximum crossflow vertically and therefore the largest possible coning. Any model...

.... In this manuscript, we review and evaluate dimensionless, analytical scaling groups to correlate laboratory spontaneous imbibition data in order to predict oil recovery at the field scale in ULR. In addition, capillary pressure curves are generated from imbibition rate theory originally developed by Mattax and Kyte...

... Recent core flooding experiments with X-ray computed tomography (CT) have augmented our understanding of capillary pressure and relative permeability as CT provides direct visualization of fluid phase distributions. Direct pore-scale measurements can even visualize the interface curvatures...

... for blockage removal. A cubic equation of state is used to model the phase behavior of three-phase mixtures of solvent, hydrocarbons and water. The three-phase flash model is coupled with a rigorous three-phase capillary pressure model to account for the effect of capillary pressure. The capillary pressure...

... In this work, the experimental set up introduced by Anand et al. (2017) was used to run experiments at pressures below the saturation pressure of the solvent, while allowing for study of asphaltene precipitation and capillary pressure. Sectional asphaltene precipitation analysis of the core...

... Abstract Reservoir relative permeability and capillary pressure, as a function of saturation, is important for assessing reservoir hydrocarbon recovery, selecting the well completion method, and determining the production strategy because they are fundamental inputs to reservoir simulation...

... as the capillary pressure is more dominant in these tighter formations, and the theoretical understanding of the flow mechanism for the imbibition process will benefit the understanding of important multiphase flow phenomenons like water blocking. In this paper, a new semi-analytic method is presented to examine...

... in glass beadpack using analogue fluids comprising water, glycerol solution (to represent the polymer) and paraffin oil. All porous medium and fluid properties (including relative permeabilities and capillary pressure curves) needed for the numerical simulations were determined independently...

... in a setting for measurement of capillary pressure with porous disc and Andersen et al. (2017a) for treatment of co-current spontaneous imbibition discussing the role of the back pressure in an experimental setting. Conventional Model Based on Darcy's Law Transport equations for incompressible...

.... In the presence of two immiscible fluids in a capillary, a capillary pressure is generated which impacts the process of imbibition. The relationship between capillary pressure, IFT, contact angle, and pore radius is given by the Young-Laplace equation as shown in Eq. 1 . (1) P c = P w − P w...

... to capture the correct envelopes of the capillary pressure curves and save ~ 30% of the total time; a thin membrane is anticipated to save ~90% with respect to traditional quasi-static porous plate method. The capillary hysteresis experiments at low temperature prove that low-salinity brine is able...

... permeability Upstream Oil & Gas physical model oil saturation shape factor flow in porous media Simulation experiment expression complex reservoir oil production matrix porosity oil recovery factor saturation fracture Injection Rate capillary pressure gas collector permeability...

... Abstract Capillary pressure and resistivity in porous rocks are both functions of wetting phase saturation. Theoretically, there should be a relationship between the two parameters. However, few studies have been made regarding this issue. Capillary pressure may be neglected in high...

... Bakken formation capillary pressure psd co 2 pore size distribution rock sample unconventional reservoir Introduction The Bakken Formation covers eastern portion of Montana, North Dakota, and Canadian provinces of Saskatchewan and Manitoba ( Figure 1 ). The Devonian-Mississippian age Bakken...