... Abstract Pre-loading parent wells with surfactant-based treatment fluids for frac hit mitigation has been applied extensively in liquids-rich shale plays, where infill drilling and tighter well spacing are prerequisites for improved production and economic return. Pre-loads can provide...

... combined to study the pore size distribution and microstructures. Then the authors performed brine imbibition and surfactant imbibition for six Bakken cores and two Berea sandstones. Before the experiment, the cores were fully filled with Bakken crude oil. The core plugs were then submerged into the brine...

... Abstract Adding a surfactant to completion fluids has been widely applied to improve the initial oil production from unconventional liquids reservoirs (ULR). However, very limited research has been conducted to understand the interactions between surfactants and salt in ULR, and to identify...

... Abstract Improving oil recovery from unconventional liquid reservoirs (ULR) is a major challenge. We have demonstrated in previous laboratory studies the impact of surfactants on spontaneous imbibition and oil recovery by means of wettability alteration and interfacial tension (IFT) reduction...

... Abstract Surfactants have long been used to prevent emulsions from limiting flow paths. Weak emulsifying surfactants (WES), however, create reverse oil-in-water emulsions. These emulsions solubilize oil and reduce interfacial tension between oil and water, allowing for increased mobility of oil...

... To investigate this hypothesis, two primary experimental techniques were used. A core flood system equipped with a computed tomography (CT) scanner was used to monitor fluid penetration in formation rocks in real time, where fluids with surfactants appeared to penetrate farther into the rocks...