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US 12,091,611 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.
Claims11
A method of synthesizing Janus nanoparticles for enhanced oil recovery (EOR), comprising:
- forming in a vessel a lamellar phase comprising water layers, crude oil layers, and a zwitterionic petroleum surfactant;
- reacting chemical reagents in the lamellar phase in the vessel to form Janus nanoparticles at interfaces of the water layers with the crude oil layers;
- and
- collecting the lamellar phase from the vessel for distribution to an EOR application comprising nanofluid flooding via the Janus nanoparticles and surfactant flooding via the zwitterionic petroleum surfactant.
1 more element
A method of enhanced oil recovery (EOR), comprising:
- forming in a reactor vessel a lamellar phase comprising water layers, crude oil layers, and a petroleum surfactant;
- reacting chemical reagents in the lamellar phase in the reactor vessel to form Janus nanoparticles at interfaces of the water layers with the crude oil layers;
- mixing water with the lamellar phase to give a flooding fluid comprising nanofluid;
- providing the flooding fluid via a pump through a wellbore into a subterranean formation;
- and
- flooding the subterranean formation as EOR, wherein the flooding comprises nanofluid flooding via the Janus nanoparticles.
3 more elements
Dependencies are inferred from the claim text.