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US 12,428,592 B2Granted
Functionalized nanoparticles as wetability modifier
AssigneeSchlumberger Technology Corporation
InventorsValerie Gisele Helene Lafitte, Juan David Estrada Benavides
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Abstract
A method of stimulating a subterranean formation includes preparing an aqueous dispersion including one or more cellulosic nanoparticles. The cellulosic nanoparticles have respective surfaces functionalized with one or more hydrophilic polymers or ligands, one or more hydrophobic polymers or ligands, or a combination thereof. The method also includes pumping the aqueous dispersion into the subterranean formation.
Claims12
A method of stimulating a subterranean formation, the method comprising:
- preparing an aqueous dispersion of one or more cellulosic nanoparticles, wherein respective surfaces of the one or more cellulosic nanoparticles are functionalized with one or more hydrophilic ligands and one or more hydrophobic ligands, and wherein the one or more cellulosic nanoparticles are Janus particles having the one or more hydrophilic ligands on one side and the one or more hydrophobic ligands on another side;
- and
- pumping the aqueous dispersion into the subterranean formation.
A method of stimulating a subterranean formation, the method comprising:
- preparing an aqueous dispersion of one or more cellulosic nanoparticles, wherein respective surfaces of the one or more cellulosic nanoparticles are functionalized with one or more polymeric ligands, and wherein the one or more cellulosic nanoparticles are Janus particles having one or more hydrophilic ligands on one side and one or more hydrophobic ligands on another side;
- and
- pumping the aqueous dispersion into the subterranean formation.
Dependencies are inferred from the claim text.