Back to results
US 11,236,261 B2Granted
Polyaromatic hydrocarbon additives for hydrate inhibition
AssigneeHalliburton Energy Services, Inc.
InventorsPhilippe Prince, Loan Vo, Deepak S. Monteiro, Tai Duc Bui, Alberto Striolo
Life of this patent
Estimating the term…
Abstract
Methods involving anti-agglomerant hydrate inhibitors and polyaromatic hydrocarbons for hydrate inhibition are provided. In some embodiments, the methods include introducing a hydrate inhibitor composition including an anti-agglomerant hydrate inhibitor into a fluid including (i) water and (ii) one of gas, liquid hydrocarbon, and any combination thereof; and introducing a polyaromatic hydrocarbon into the fluid.
Claims20
A method comprising:
- introducing a hydrate inhibitor composition comprising an anti-agglomerant hydrate inhibitor into a fluid comprising (i) water and (ii) one of gas, liquid hydrocarbon, and any combination thereof, wherein the anti-agglomerant hydrate inhibitor comprises at least one compound having the structural formula:
- where R1 is C5-C22, R2 is C1-C6 and X− is a counter anion;
- and
- introducing a polyaromatic hydrocarbon into the fluid.
1 more element
A method comprising:
- forming a hydrate inhibitor composition by mixing an anti-agglomerant hydrate inhibitor with a polyaromatic hydrocarbon, wherein the polyaromatic hydrocarbon and the anti-agglomerant hydrate inhibitor are present in concentrations having a ratio of from about 2:1 to about 10:1 by volume;
- and
- injecting the hydrate inhibitor composition into a subsea umbilical.
A method comprising:
- introducing a hydrate inhibitor composition comprising an anti-agglomerant hydrate inhibitor and at least one of a nonionic surfactant or an anionic surfactant into a fluid comprising (i) water and (ii) one of gas, liquid hydrocarbon, and any combination thereof;
- and
- introducing a polyaromatic hydrocarbon into the fluid.
Dependencies are inferred from the claim text.