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Improvement of Water Displacement Efficiency in Sandstone Reservoirs Using Buffered Sodium Silicate
This work addresses the influence of buffered sodium silicate, (SiO2)3.35Na2O, on water-oil displacement efficiency in quartz media using static and flooding experiments. IFT measurements reveal that sodium silicate-oil ...
The Enhancement of a Low-Frequency Electrical Heating Method by Saltwater Circulation
Low-frequency electrical heating is an effective method that can solve most
of the problems of recover of highly viscous oil from a reservoir, such as low initial
injectivity and shallow depth in launching ...
Evaluation of polymer injection, near-wellbore and in-depth gel treatments in a stratified porous medium
In this work, water-oil displacement in a stratified oil reservoir was studied, using field-scale numerical simulations, and the effect of polymer injection, near wellbore and in-depth gel treatments on oil recovery ...
Pore-level Influence of Contact Angle on Fluid Displacements In Porous Media
Wettability affects two-phase displacements in porous media by determining the microscopic distribution of fluids in pore spaces. The impact of wettability on transport properties at macro-scales has been widely
addressed ...
A Prediction Method For Sodium Silicate Gelation Time Under Reservoir Conditions Applied For Water Management
Sodium silicate is an inexpensive environmentally friendly chemical with initial water-like viscosity, favorable for well and reservoir water managements. The interest in the application of sodium silicate for water control ...
Pore-scale Simulation of Coupled Two-phase Flow and Heat Transfer through Dual-Permeability Porous Medium
This paper addresses one of the major
challenges in water-flooded oil reservoirs, which
is early water breakthrough due to the presence
of high permeable layers in the media. COMSOL
MultiphysicsTM ...
Preparation of Temperature-Responsive Core-Shell Polymer Nanoparticles for Enhanced Oil Recovery Application
A particular core-shell polymer nanoparticle of poly-N-isopropylacrylamide-/polysytrene -PNIPAM-PS- was synthesized for EOR applications in tight carbonate reservoirs. The CSP of PNIPAM-PS was synthesized by two-stage ...
Phase-Field Simulation of Counter-Current Spontaneous Imbibition in a Fractured Heterogeneous Porous Medium
Spontaneous imbibition is well-known to be of the most effective processes of oil recovery in fractured reservoirs. However, the detailed pore-scale mechanisms of counter-current imbibition process and the effects of ...
Factors Affecting Alkaline Sodium Silicate Gelation for In-Depth Reservoir Profile Modification
Alkaline sodium silicate (Na-silicate) is environment-friendly and possesses water-like viscosity during the injection stage for in-depth reservoir treatment to enhance sweep efficiency. Gel setting time (tg) and gel ...
Pore-scale modeling of non-isothermal two phase flow in 2D porous media: Influences of viscosity, capillarity, wettability and heterogeneity
This paper addresses simulation of non-isothermal water-oil displacements in porous media at porescale.
The simulation approach was done by coupling Cahn–Hilliard phase field and heat equations using
COMSOL ...