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US 11,008,523 B2Granted
Chemical inhibitors with sub-micron materials as additives for enhanced flow assurance
AssigneeCameron International Corporation
InventorsMerlyn Xavier Pulikkathara, Chandrashekhar Yeshwant Khandekar
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Abstract
Methods may include admixing an additive composition with a hydrocarbon fluid, wherein the additive composition contains at least one inhibitor and at least one sub-micron particle. Additional methods may include providing an additive composition containing at least one inhibitor and at least one sub-micron particle; adding the additive composition to a fluid capable of precipitating at least one of at least of asphaltenes, wax, scale, and gas hydrates; and transporting the fluid containing the additive composition.
Claims13
A method comprising:
- producing a hydrocarbon fluid from a reservoir;
- admixing an additive composition with the hydrocarbon fluid during or after the producing, wherein the additive composition comprises at least one inhibitor and at least one sub-micron particle, the at least one inhibitor and the at least one sub-micron particle being distinct components,
- wherein the at least one inhibitor is at least one of an asphaltene inhibitor, a hydrate inhibitor or a wax inhibitor, and
- wherein the at least one sub-micron particle is one or more selected from the group consisting of carbon nanotubes, carbon fibers, fullerenes, graphene particles, microcrystalline cellulose, nanocrystalline cellulose, colloidal silicas, hydroxyapatite, calcium tertiary phosphate, calcium oxide, zinc oxide, silicon oxide, aluminum oxide, magnesium oxide, and calcium fluoride;
- wherein the additive composition reduces the deposition or precipitation of at least one of asphaltenes, wax, and hydrates from the hydrocarbon fluid.
2 more elements
A method comprising:
- providing an additive composition comprising at least one inhibitor and at least one sub-micron particle, the at least one inhibitor and the at least one sub-micron particle being distinct components,
- wherein the at least one sub-micron particle is one or more selected from the group consisting of carbon nanotubes, carbon fibers, fullerenes, graphene particles, microcrystalline cellulose, nanocrystalline cellulose, colloidal silicas, hydroxyapatite, calcium tertiary phosphate, calcium oxide, zinc oxide, silicon oxide, aluminum oxide, magnesium oxide, and calcium fluoride;
- adding the additive composition to a hydrocarbon fluid capable of precipitating at least one of asphaltenes, wax, and gas hydrates, the hydrocarbon fluid having been produced from a reservoir;
- and
- transporting the hydrocarbon fluid comprising the additive composition,
- wherein the additive composition reduces the deposition or precipitation of at least one of asphaltenes, wax, and hydrates from the hydrocarbon fluid.
3 more elements
A method comprising:
- providing an additive composition comprising at least one inhibitor and at least one sub-micron particle, the at least one inhibitor and the at least one sub-micron particle being distinct components;
- wherein the at least one sub-micron particle is one or more selected from the group consisting of carbon nanotubes, carbon fibers, fullerenes, graphene particles, microcrystalline cellulose, nanocrystalline cellulose, colloidal silicas, hydroxyapatite, calcium tertiary phosphate, calcium oxide, zinc oxide, silicon oxide, aluminum oxide, magnesium oxide, and calcium fluoride;
- introducing the additive composition into a wellbore penetrating a subterranean formation;
- producing a hydrocarbon fluid from the subterranean formation, thereby contacting the additive composition;
- and
- allowing the additive composition to inhibit the precipitation of at least one of asphaltenes, wax, and hydrates from the hydrocarbon fluid.
3 more elements
Dependencies are inferred from the claim text.