| abstract |
Copolymers having the general formula (I) (I) Wherein R 1 is one or more C 1 -C 6 aliphatic group optionally substituted divalent C 4 -C 7 aliphatic group and a divalent C 4 -C 7 heterocyclic aliphatic group, O, N, and the heteroatoms independently selected from S Atoms or combinations thereof, wherein said divalent C 4 -C 7 aliphatic groups independently comprise one or two heteroatoms selected from O, N, and S, and wherein the maximum number of heteroatoms in R 1 is two; x is a mole fraction range selected from 0.05 to 0.95; y is a mole fraction range selected from 0.05 to 0.95, and the sum of x and y is 1. A method for inhibiting the formation of a foamed hydrate in a fluid capable of forming a foamed hydrate. The process comprises contacting the fluid with at least one copolymer of formula (I) under conditions suitable for forming a foamed hydrate. |