Multiphase flow in porous media provides a wide range of applications: from the environmental understanding (aquifer, site-pollution) to industrial process improvements (oil production, waste management). Modeling of such flows involves specific volume-averaged equations and therefore specific computational fluid dynamics (CFD) tools. In this work, we develop a toolbox for modeling multiphase f...

Abstract A saturation–capillary pressure relationship is proposed that applicable for all wettabilities, including mixed-wet and oil-wet or hydrophobic media. This formulation more flexible than existing correlations only match water-wet data, while also allowing saturation to be written as a closed-form function of capillary pressure: we can determine explicitly from saturation, vice versa. We...

A single-shot method to determine the capillary pressure curve employed a single rotational velocity centrifugation experiment and one-dimensional Centric Scan SPRITE (single-point ramped imaging with T1 enhancement) MRI (magnetic resonance imaging) to determine the fluid saturation distribution, S(r), along the length (r) of the core. A full capillary pressure curve can be directly determined ...

There are presented some applications of parallel computers with distributed memory to solving CFD-problems. Two types of flows are predicted. In the first case — multi-phase immiscible incompressible fluid flows in a porous medium. Filtration processes are governed by the 2d Bucley-Leverett model. Explicit as well as implicit methos are used. Simulation of oil extraction by water flooding is c...

An adequate circulating blood volume is recognized to be important after open-heart surgery (Carr, Sloan, and Tovar, 1960). A number of post-operative studies have attempted to correlate clinical determinations of blood loss with volumes estimated by tracer techniques. Discrepancies noted have been attributed to extensive haemorrhage into traumatized tissue redistribution of functional extracel...

Multiphase flow in porous media provides a wide range of applications: from the environmental understanding (aquifer, site-pollution) to industrial process improvements (oil production, waste management). Modeling of such flows involves specific volume-averaged equations and therefore specific computational fluid dynamics (CFD) tools. In this work, we develop a toolbox for modeling multiphase f...

The injected CO2 in a target formation can continue to migrate through permeable pathways due to geological heterogeneity as well as buoyancy. This movement drives a countercurrent flow of brine leading to increased residual phase trapping. The purpose of this simulation study is to understand the effects of geological structures, especially faults, on the dynamic behavior of the buoyancy-drive...

The displacement of non-Newtonian power-law fluids in communicating stratified reservoirs with a log-normal permeability distribution is studied. Equations are derived for fractional oil recovery, water cut, injectivity ratio, and pseudorelative permeability functions, and the performance is compared with that for Newtonian fluids. Constant-injection-rate and constant-total-pressuredrop cases a...

Recent reports of art increased prevalence of dental fluorosis in fluoridated and nonfluoridated communities have led to a reassessment of the amount offluoride (F) being ingested infants and young children. Manufacturers of milk-based formulas have taken steps to reduce the F concentration to negligible levels. Reduction of F concentration in soy-based formulas is more difficult because ofF bi...

The aims of the study were to explore the associations between college students’ perception of their overall physical and psychological health and four measures of academic performance. College students (N = 265) completed a 65-item Web-based survey in a university’s student health services building during the spring 2015 semester. Poorer psychological health was associated with seriously consi...