K. S. Sorbie
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View article: Modelling Pore Occupancies in Three-phase Displacements from Micro-CT Images Using a Physics-Based Theory of Wettability and Miscibility Conditions
Modelling Pore Occupancies in Three-phase Displacements from Micro-CT Images Using a Physics-Based Theory of Wettability and Miscibility Conditions Open
Advanced digital rock technology using X-ray microtomography (micro-CT) has been applied to investigate three-phase pore occupancies in rock samples. These three-phase experiments involved different injection sequences in water-wet, oil-we…
View article: Rapoport Revisited: A Review of Scaling Theory of Two Phase Flow in Porous Media and its Application
Rapoport Revisited: A Review of Scaling Theory of Two Phase Flow in Porous Media and its Application Open
This paper presents a detailed analytical exposition of the classic 1955 paper by Rapoport on the rigorous scaling of two phase flow in porous media. It extends Rapoport’s work to anisotropic systems and fills in a number of the missing de…
View article: Inherent Errors in Current Core-Flooding Relative Permeability Data for Modelling Underground Hydrogen Storage
Inherent Errors in Current Core-Flooding Relative Permeability Data for Modelling Underground Hydrogen Storage Open
In the design and optimisation of an underground hydrogen (H2) storage facility in an aquifer or other reservoir system, the H2/water relative permeabilities (RP) are the most critical two-phase data for input to numerical simulation. In t…
View article: The Role of Surfactant on the Nanoparticle-Modifiers in Facilitating Scale Inhibition
The Role of Surfactant on the Nanoparticle-Modifiers in Facilitating Scale Inhibition Open
Nanotechnology has been the prime approach over the last several decades including in scaling prevention. There has been a flurry of activity in incorporating nanoparticles (NPs) with scale inhibitors (SI) to help mitigate the scales’ grow…
View article: X-ray visualized unstable displacements of water by gas in sandstone slabs for subsurface gas storage
X-ray visualized unstable displacements of water by gas in sandstone slabs for subsurface gas storage Open
A series of experiments have been performed studying the displacement of water by gas in consolidated porous media at an adverse viscosity ratio of μw/μg = 100, from the perspective of subsurface gas storage. The gas/water relative permeab…
View article: The immiscible to miscible transition and its consequences for 3-phase displacements in porous media of arbitrary wettability: Basic theory
The immiscible to miscible transition and its consequences for 3-phase displacements in porous media of arbitrary wettability: Basic theory Open
In this paper, a "process-based" 3-phase model is applied to explore how multiphase fluid flow behaviour in two non-uniform wettability systems, named weakly oil-wet (WOW) and mixed-wet large (MWL), change when gas and oil move towards mis…
View article: Experimental observations and modeling of the effect of wettability on immiscible viscous fingers at the Darcy scale
Experimental observations and modeling of the effect of wettability on immiscible viscous fingers at the Darcy scale Open
In this work, we present a Darcy-scale study of immiscible unstable displacement in large (15 × 15 × 1 cm3) slabs of Bentheimer sandstone. Oil is displaced by water under two wetting conditions, a weakly water-wet system and a weakly oil-w…
View article: A comprehensive equilibrium model for the phosphonate scale inhibitor-carbonate system including coupled adsorption/precipitation (Γ/Π)
A comprehensive equilibrium model for the phosphonate scale inhibitor-carbonate system including coupled adsorption/precipitation (Γ/Π) Open
Inorganic scale deposition is one of the main flow assurance issues in hydrocarbon production, and injection systems, leading to significant loss in production and subsequent expense to mitigate. Scale Inhibitors (SI) are chemicals that ar…
View article: Immiscible Viscous Fingering: The Effects of Wettability/Capillarity and Scaling
Immiscible Viscous Fingering: The Effects of Wettability/Capillarity and Scaling Open
Realistic immiscible viscous fingering, showing all of the complex finger structure observed in experiments, has proven to be very difficult to model using direct numerical simulation based on the two-phase flow equations in porous media. …
View article: Bioreaction coupled flow simulations: Impacts of methanogenesis on seasonal underground hydrogen storage
Bioreaction coupled flow simulations: Impacts of methanogenesis on seasonal underground hydrogen storage Open
Assessing microbial risks is key to feasible hydrogen storage in geological formations. This work quantitatively analyses the impacts of bio-methanation on hydrogen storage performance. Fine-scale flow simulations, coupled with the bio-met…
View article: Immiscible Viscous Fingering at the Field Scale: Numerical Simulation of the Captain Polymer Flood
Immiscible Viscous Fingering at the Field Scale: Numerical Simulation of the Captain Polymer Flood Open
Summary Immiscible fingering in reservoirs results from the displacement of a resident high-viscosity oil by a significantly less viscous immiscible fluid, usually water. During oil recovery processes, where water is often injected for swe…
View article: The deposition kinetics of barium sulphate scale: model development
The deposition kinetics of barium sulphate scale: model development Open
The formation and deposition of mineral scales, such as barium sulphate (BaSO 4 ) and calcium carbonate (CaCO 3 ), is a common problem in many industrial and life science processes. This is caused by chemical incompatibility due either to …
View article: Immiscible Viscous Fingering: the Effects of Wettability/Capillarity and Scaling
Immiscible Viscous Fingering: the Effects of Wettability/Capillarity and Scaling Open
Realistic immiscible viscous fingering, showing all of the complex finger structure observed in experiments, has proved to be very difficult to model using direct numerical simulation based on the two phase flow equations in porous media. …
View article: Correct relative permeability data from steady-state experiments for capillary end effects
Correct relative permeability data from steady-state experiments for capillary end effects Open
Water-oil relative permeability curves can be obtained from co-injection experiments at steady-state (SS) conditions. The two-phase Darcy's law can be used to calculate the relative permeability directly only when water saturation is const…
View article: Immiscible Viscous Fingering at the Field Scale: Numerical Simulation of the Captain Polymer Flood
Immiscible Viscous Fingering at the Field Scale: Numerical Simulation of the Captain Polymer Flood Open
Immiscible fingering in reservoirs results from the displacement of a resident high viscosity oil by a significantly less viscous immiscible fluid, usually water. During oil recovery processes, where water is often injected for sweep impro…
View article: Characterization of silicate scale formation: The effect of pH on silica/silicate scale formation
Characterization of silicate scale formation: The effect of pH on silica/silicate scale formation Open
One of the challenging situations that engineers have been encountered in the oil and gas industry is the formation of silicate scale during alkaline surfactant polymer (ASP) flooding which could be throughout the overall production system…
View article: Immiscible Viscous Fingering: The Simulation of Tertiary Polymer Displacements of Viscous Oils in 2D Slab Floods
Immiscible Viscous Fingering: The Simulation of Tertiary Polymer Displacements of Viscous Oils in 2D Slab Floods Open
Immiscible viscous fingering in porous media occurs when a high viscosity fluid is displaced by an immiscible low viscosity fluid. This paper extends a recent development in the modelling of immiscible viscous fingering to directly simulat…
View article: Silicate Scaling Formation: Impact of pH in High-Temperature Reservoir and Its Characterization Study
Silicate Scaling Formation: Impact of pH in High-Temperature Reservoir and Its Characterization Study Open
Silicate scaling tends to form and be aggravated during high pH Alkaline Surfactant Polymer (ASP) floods and this silicate scale deposition affects oil production. Hence, it is important to examine the conditions that lead to silicate scal…
View article: Immiscible Viscous Fingering: Modelling Unstable Water–Oil Displacement Experiments in Porous Media
Immiscible Viscous Fingering: Modelling Unstable Water–Oil Displacement Experiments in Porous Media Open
Viscous fingering in porous media occurs when the ( miscible or immiscible ) displacing fluid has a lower viscosity than the displaced fluid. For example, immiscible fingering is observed in experiments where water displaces a much more vi…
View article: Numerical modelling of H2 storage with cushion gas of CO2 in subsurface porous media: Filter effects of CO2 solubility
Numerical modelling of H2 storage with cushion gas of CO2 in subsurface porous media: Filter effects of CO2 solubility Open
The central objective of this study is to improve the understanding of flow behaviour during hydrogen (H2) storage in subsurface porous media, with a cushion gas of carbon dioxide (CO2). In this study, we investigate the interactions betwe…
View article: The Role of Immiscible Fingering on the Mechanism of Secondary and Tertiary Polymer Flooding of Viscous Oil
The Role of Immiscible Fingering on the Mechanism of Secondary and Tertiary Polymer Flooding of Viscous Oil Open
Immiscible viscous fingering in porous media occurs when a low viscosity fluid displaces a significantly more viscous, immiscible resident fluid; for example, the displacement of a higher viscosity oil with water (where μ o > > μ w ). Clas…
View article: Experimental Analysis of Scale Inhibitors Retention in Carbonate Formations for Application in Squeeze Treatments
Experimental Analysis of Scale Inhibitors Retention in Carbonate Formations for Application in Squeeze Treatments Open
In this work, static adsorption/precipitation (Γ/Π) experiments were conducted for two widely used scale inhibitors (DETPMP and VS-Co) using two different size fractions of Moroccan calcite (315–500 and 125–250 μm) to study the effect of p…
View article: The Impact of Rheology on Viscous Oil Displacement by Polymers Analyzed by Pore-Scale Network Modelling
The Impact of Rheology on Viscous Oil Displacement by Polymers Analyzed by Pore-Scale Network Modelling Open
Several experimental studies have shown significant improvement in heavy oil recovery with polymers displaying different types of rheology, and the effect of rheology has been shown to be important. These experimental studies have been des…
View article: On the Modelling of Immiscible Viscous Fingering in Two-Phase Flow in Porous Media
On the Modelling of Immiscible Viscous Fingering in Two-Phase Flow in Porous Media Open
Viscous fingering in porous media is an instability which occurs when a low-viscosity injected fluid displaces a much more viscous resident fluid, under miscible or immiscible conditions. Immiscible viscous fingering is more complex and ha…