Numerical approach for enhanced oil recovery with surfactant flooding

An Experimental Study of Surfactant Alternating CO2 Injection for Enhanced Oil Recovery of Carbonated Reservoir

Core flooding experiments were conducted with the objective of evaluating near miscible surfactant alternating CO2 injection and the effect of surfactant concentrations on gas-oil and water displacements in porous media. The core samples were provided from a low permeability mixed wet oil reservoir at 156 °F and 1900 psia. In addition, very few studies of surfactant adsorption on car...

Study on the Reutilization of Clear Fracturing Flowback Fluids in Surfactant Flooding with Additives for Enhanced Oil Recovery (EOR)

An investigation was conducted to study the reutilization of clear fracturing flowback fluids composed of viscoelastic surfactants (VES) with additives in surfactant flooding, making the process more efficient and cost-effective. The clear fracturing flowback fluids were used as surfactant flooding system with the addition of α-olefin sulfonate (AOS) for enhanced oil recovery (EOR). The interfa...

A model study of enhanced oil recovery by flooding with aqueous surfactant solution and comparison with theory . Paul

With the aim of elucidating the details of enhanced oil recovery by surfactant solution flooding, we have determined the detailed behaviour of model systems consisting of a packed column of calcium carbonate particles as the porous rock, n-decane as the trapped oil and aqueous solutions of the anionic surfactant sodium bis-2-ethylhexyl sulfosuccinate (AOT). The AOT concentration was varied from...

Enhanced Oil Recovery and CO2 Flooding/Sequestration in Carbonates

RESEARCH ON CO2 FLOODING FOR IMPROVED OIL RECOVERY IN WATER FLOODING ABANDONED RESERVOIRS

CO2 injection is an effective technique for improved oil recovery in light oil reservoirs, especially for water flooding abandoned reservoirs. In this study, the lower part of Es1 reservoirs in Pucheng oilfield was introduced as the target reservoir. By studying the minimum miscible pressure in CO2 flooding, the reservoir could achieve miscible flooding. Long core displacement experiments prove...