Additives for inhibiting the formation of gas hydrates

Details Additives for inhibiting the formation of gas hydrates Additives for inhibiting the formation of gas hydrates

2007-02-27

2007-02-27

Gulakowski, Randy (Department: 1712)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S241000, C507S246000, C507S260000, C507S261000, C507S267000, C514S785000, C585S015000, C560S170000, C422S007000

Reexamination Certificate

active

10483785

ABSTRACT:
The present invention relates to an additive, and its use for inhibiting nucleation, growth and agglomeration of gas hydrates by adding an effective amount of an inhibitor to a multiphasic mixture which tends to hydrate formation and consists of water, gas and optionally condensate, or to a drilling fluid which tends to form gas hydrates. Said inhibitor comprising dialkoxylated quaternary ammonium compounds of the formula 1where R1, R2are each independently radicals of the formulae—(B)—(O—A)n—O—CO—R5or —(A—O)n—(C)—CO—O—R5, R3is C1- to C30-alkyl or C2- to C30-alkenyl, R4is an organic radical which optionally contains heteroatoms and has from 1 to 100 carbon atoms, R5is an alkyl or an alkenyl, n is a number from 1 to 20, A is an alkylene group, B is an alkylene group, C is a C1- to C6-alkylene group and X is an anion, are used as gas hydrate inhibitors.

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