Tilsætningsstoffer til inhibering af gashydratdannelse

摘要

An additive for inhibiting the formation of gas hydrates in connection with hydrocarbon production and transportation comprising the water-soluble polymers comprising structural elements of the formulawhereineach R is independently H or C1-C5-alkyl;X is H, an alkaline or earth alkaline metal or a quaternary ammonium group;R1 is H or C1-C18-alkyl; and R2 is C1-C18-alkyl;and wherein the alkyl groups represented by R1 and R2 optionally carry a hydroxy or amino substituent; and, optionally, a minor proportion of structural elements of the formula wherein R, R1, R2 and X may have the meaning as above, and Alk is a C1-C5-alkylene chain.