| 摘要 |
Compositions for inhibiting the formation and/or growth of gas hydrates contain at least one low dosage kinetic hydrate inhibitor and at least one thermodynamic hydrate inhibitor. Kinetic hydrate inhibitors include aminated polyalkylene glycols of the formula: R1R2N[(A)a-(B)b-(A)c-(CH2)d-CH(R)-NR1]n R2 (I) wherein: each A is independently selected from -CH2CH(CH3)O- or - CH(CH3)CH2O-; B is -CH2CH2O-; a + b + c is from 1 to about 100; R is -H or CH3 each R1 and R2 are independently selected from the group consisting of - H, -CH3, -CH2-CH2-OH and CH(CH3)-CH2-OH; d is from 1 to about 6; and n is from 1 to about 4. Such gas hydrate inhibitor compositions are particularly efficacious in t he treatment of media susceptible to gas hydrate formation that may occur durin g the extraction of natural gas and petroleum fluids, such as low boiling hydrocarbons, from a producing well, during transportation of such gas and fluids, and during processing of such gas and fluids.
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