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US 11,884,891 B2Granted
Environmentally friendly flow improvers with improved formulation stability at low temperatures
AssigneeCameron International Corporation
InventorsTore Nordvik, Rachael Anne Cole, Chandrashekhar Yeshwant Khandekar, Pradyumna Avinash Deshpande
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Abstract
A method of treating petroleum fluids may include adding a flow improver composition to the petroleum fluids, the flow improver composition, comprising: a solvent; and a dendrimer-based flow improver, wherein at least a portion of the surface sites of the dendrimer are chemically modified with saturated and unsaturated fatty acids.
Claims15
A method of treating petroleum fluids, comprising:
- adding a flow improver composition to the petroleum fluids, the flow improver composition, comprising:
- a solvent;
- and
- a dendrimer-based flow improver that is a reaction product of a base dendrimer represented by the structure:
- and erucic acid or behenic acid,
- wherein the base dendrimer comprises surface sites and at least 50% of the surface sites are chemically modified with erucic acid or behenic acid,
- wherein at least one surface site is chemically modified via amidation with erucic acid and at least one surface site is chemically modified via amidation with behenic acid, and
- wherein a mole ratio of erucic acid to behenic acid that undergoes amidation on the surface sites of the dendrimer is between about 10:1 to 1:10.
5 more elements
A method comprising:
- adding a flow improver composition to a first hydrocarbon fluid to produce a second hydrocarbon fluid, the flow improver composition comprising a solvent;
- and a dendrimer-based flow improver that is a reaction product of a base dendrimer represented by the structure:
- and erucic acid or behenic acid,
- wherein the base dendrimer comprises surface sites and at least 50% of the surface sites are chemically modified with erucic acid or behenic acid,
- wherein at least one surface site is chemically modified via amidation with erucic acid and at least one surface site is chemically modified via amidation with behenic acid, and
- wherein a mole ratio of erucic acid to behenic acid that undergoes amidation on the surface sites of the dendrimer is between about 10:1 to 1:10.
3 more elements
A method comprising:
- extracting a hydrocarbon fluid from a well;
- and
- adding a flow improver composition to the hydrocarbon fluid, the flow improver composition comprising a solvent;
- and a dendrimer-based flow improver that is a reaction product of a base dendrimer represented by the structure:
- and erucic acid or behenic acid,
- wherein the base dendrimer comprises surface sites and at least 50% of the surface sites are chemically modified with erucic acid or behenic acid,
- wherein at least one surface site is chemically modified via amidation with erucic acid and at least one surface site is chemically modified via amidation with behenic acid, and
- wherein a mole ratio of erucic acid to behenic acid that undergoes amidation on the surface sites of the dendrimer is between about 10:1 to 1:10.
5 more elements
Dependencies are inferred from the claim text.