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US 5,076,364 AGranted
Gas hydrate inhibition
AssigneeShell Oil Company
InventorsArthur H. Hale, Ashok K. R. Dewan, George C. Blytas
Life of this patent
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Abstract
Gas hydrate formation in a gas well is prevented by injecting a carrier and an alcohol (e.g., glycerol or a glycerol derivative) into the well and connected facilities/pipelines.
Claims11
A process for inhibiting gas hydrate formation in the production fluid of a well, connected facilities and pipelines of the well comprising injecting into the well inhibitor comprising a carrier and a polycyclicpolyetherpolyol.
A process for shutting-in a well having a fluid therein which is susceptible to the formation of gas hydrates, comprising:
- preparing a gas hydrate inhibitor by admixing an alcohol with a carrier, said carrier and said alcohol and the quantities thereof being selected to be compatible with the well and effective to prevent the formation of gas hydrates in said well fluid;
- selecting an appropriate location, depending upon the type of well being shut-in, and injecting the gas hydrate inhibitor into said well at said location;
- and
- shutting-in the well.
1 more element
Dependencies are inferred from the claim text.