Loading patent…
AssigneeWilliam Marsh Rice University
InventorsJames M. Tour, Howard K. Schmidt, Jay R. Lomeda, Dmitry V. Kosynkin, Condell D. Doyle
Estimating the term…
Drilling fluids comprising graphenes and nanoplatelet additives and methods for production thereof are disclosed. Graphene includes graphite oxide, graphene oxide, chemically-converted graphene, and functionalized chemically-converted graphene. Derivatized graphenes and methods for production thereof are disclosed. The derivatized graphenes are prepared from a chemically-converted graphene through derivatization with a plurality of functional groups. Derivatization can be accomplished, for example, by reaction of a chemically-converted graphene with a diazonium species. Methods for preparation of graphite oxide are also disclosed.
A drilling fluid comprising a graphene, wherein the graphene is selected from the group consisting of chemically converted graphene, chemically converted graphene prepared by a reduction of graphite oxide, chemically converted graphene functionalized with a plurality of aryl groups, graphene functionalized with a plurality of aryl groups, graphene functionalized with a plurality of alkyl groups, functionalized graphite oxide, graphite oxide that has been functionalized through esterification or amidation of carboxylic acid groups, graphite oxide that has been functionalized with a plurality of alkyl groups, graphite oxide that has been functionalized with a plurality of aryl groups, reduced graphite oxide, and combinations thereof.
A method for making a drilling fluid comprising a graphene, said method comprising:
A drilling fluid comprising a nanoplatelet additive, wherein the nanoplatelet additive is selected from the group consisting of exfoliated clays and expanded and mechanically sheared mica.
Dependencies are inferred from the claim text.