Clariant International Ltd

Lisa Greaney Tejada

Matthias Krull

Jonathan James Wylde

Felix Hoevelmann

Scot Bodnar

Corinna Krüger

Dan Smith

This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein Ris an alkyl or alkenyl group having from 7 to 21 carbon atoms, Rand Rare each independently an alkyl group containing 1 to 10 carbon atoms, or together form an optionally substituted ring having 5 to 10 ring atoms, wherein the ring may carry up to 3 substituents, Ris hydrogen or an alkyl group having 1 to 6 carbon atoms, Ris hydrogen or an optionally substituted hydrocarbyl group having 1 to 17 carbon atoms and A is an alkylene group having two or three carbon atoms, into a fluid comprising gas, water and oil under conditions prone to the formation of gas hydrates, wherein the N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) is produced by the condensation reaction of a fatty acid with an N,N-dialkylamino alkyl amine and subsequent neutralization with a carboxylic acid.

Method for inhibiting gas hydrate blockage in oil and gas pipelines

This invention relates to a method for inhibiting the agglomeration of gas hydrates, comprising the injection of an anti-agglomerant comprising a N,N-dialkyl-ammoniumalkyl fatty acid amide represented by the formula (I) wherein

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Spring, TX, United States of America

Lisa Greaney Tejada