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High-grade oil sand disintegration process is observed under a microscope (320×) to validate laboratory experiments on bitumen displacement and final contact angles of bitumen droplets on glass surfaces. The bitumen film on a sand grain was displaced by water and bitumen droplets were formed on the sand grain. Photographs of the bitumen/water/sand contact line and bitumen droplets are presented. Bitumen...
Experiments were conducted to study the effect of NaCl and MIBC/kerosene surfactants on bitumen displacement by water on a glass surface. A thin coating of bitumen on a glass surface displaced spontaneously in the inward radial direction upon exposure to an aqueous environment containing salt and surfactants. The initially circular bitumen disk took the shape of a spherical droplet. The time variation...
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