METHODS FOR INHIBITING HYDRATE BLOCKAGE IN OIL AND GAS PIPELINES USING SIMPLE QUATERNARY AMMONIUM AND PHOSPHONIUM COMPOUNDS

摘要

A method and a quaternary ammonium or phosphonium composition used therein forinhibiting, retarding, mitigating, reducing, controlling and/or delayingformation of hydrocarbon hydrates or agglomerates of hydrates. The method maybe applied to prevent or reduce or mitigate plugging of conduits, pipes,transfer lines, valves, and other places or equipment where hydrocarbonhydrate solids may form under the conditions. At least one quaternary ammoniumor phosphonium compound is added into the process stream, where the compoundmay be mixed with another compound selected from other amino alcohols, esters,quaternary ammonium, phosphonium or sulphonium salts, betaines, amine oxides,amides, simple amine salts, and combinations thereof.