Patent ID: 7285519

Claim:
A method of treating a crude oil, comprising: introducing into the crude oil a composition comprising at least one additive dissolved in a carrier fluid including at least one compound of the formula (I) (R 2 ) p -Ph-(CH 2 ) m —COO-( AO ) n —R 1 (I) where R 1 is a C 1 to C 10 alkyl group AO is an alkyleneoxy group which may vary along the (poly)alkyleneoxy chain; n 0 or from 1 to 100; m is 0, 1 or 2; and Ph is a phenyl group, which may be substituted with groups (R 2 ) p ; where each R 2 is independently a C 1 to C 4 alkyl or alkoxy group; and p is 0, 1 or 2.