Network Modelling of Apparent-Relative Permeability of Gas in Heavy Oils

Abstract

FIGURE 1: Schematic representation of bubble movement from (a) to (c). The right hand side depictions correspond to schematic representations of a network model.FIGURE 2: A typical branch in a unit cell (UC) of the porous medium model [Modified from Reference (9)]. FIGURE 3: Depiction of a 4-UC bubble. A branch (BR), a gate branch (GBR), a unit cell (UC), and periodicity length (l) are shown on the sketch [Modified from Reference (9)].

Characterization of gas-oil flow in Cyclic Solvent Injection (CSI) for heavy oil recovery

“…However, in heavy oil systems, the oil viscosity has also been found to affect the gas relative permeability. Talabi et al, (2003) and Javadpour et al, (2004) suggested that, in heavy oil systems, the gas relative permeability decreases with increasing oil viscosity. As a similar implication, Li et al (2016) presented that the gas relative permeability increased distinctly with temperature -the change in temperature accompanied a variation in oil viscosity.…”

Preliminary numerical modelling of CO2 gas foaming in heavy oil and simulations of oil production from heavy oil reservoirs

“…In a field model, Bayon et al reported an oil recovery factor ranging from 25–35 % with a depressurization rate of 80–800 kPa/day. Other researchers have studied foamy solution gas drives and concluded the oil recovery is in the ranges of 5–25 % and > 10 % . However, these studies have not established pseudo‐reaction modelling.…”

“…Other researchers have studied foamy solution gas drives and concluded the oil recovery is in the ranges of 5-25 % [7] and > 10 %. [8] However, these studies have not established pseudo-reaction modelling.…”

Numerical Simulation of CO2 Gas Microbubble of Foamy Oil

“…In the field model, Bayon et al [6] reported the oil recovery factor was in range from 25 to 35% with depressurization rate from 80 to 800 kPa/day. Other researchers have studied foamy solution gas drives and concluded the oil recovery is in range 5 to 25% [7] and higher than 10% [8].…”