NOVEL KINETIC HYDRATE INHIBITOR, PREPARATION METHOD THEREFOR AND USE THEREOF

摘要

A kinetic hydrate inhibitor has a structural formula as represented by formula I. The inhibitor has a high inhibitory activity, being able to achieve a good inhibitory effect; can be used in a small amount, having a lower cost; can effectively delay the nucleation time of a hydrate at a low dose concentration (0.5-2 wt%) and a high condensate depression environment and reduce the formation rate of the hydrate; and is suitable for an oil-gas-water three phase or oil-water two phase or gas-water two phase coexisting system, and can be used to inhibit hydrate formation in oil and gas exploitation, processing and transportation without limitation of the condensate depression and application field, resulting in broad application prospects. n = 10 to 10000.