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US 11,827,850 B2Granted
Enhanced oil recovery with janus nanoparticles
AssigneeSaudi Arabian Oil Company
InventorsWei Wang, Sehoon Chang, Amr I. Abdel-Fattah
Life of this patent
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Abstract
Enhanced oil recovery (EOR) including with a lamellar phase having Janus nanoparticles, petroleum surfactant, crude oil, and water and with additional water to give the flooding fluid that may be pumped through a wellbore into a subterranean formation to affect a property of hydrocarbon in the subterranean formation via contact of the flooding fluid with the hydrocarbon.
Claims10
A method of enhanced oil recovery (EOR), comprising:
- combining a liquid-crystal lamellar phase with water to give a flooding fluid, wherein the liquid-crystal lamellar phase comprises a petroleum surfactant, crude oil layers, and water layers, wherein the liquid-crystal lamellar phase comprises Janus metal-oxide nanoparticles formed at interfaces of the crude oil layers with the water layers, and wherein the Janus metal-oxide nanoparticles have a hydrophilic side and a hydrophobic side;
- and
- pumping, via a centrifugal pump, the flooding fluid through a wellbore into a subterranean formation, thereby flooding the subterranean formation with the flooding fluid.
Dependencies are inferred from the claim text.