Novel Coupled Hydrocarbyl-Substituted Phenol Materials as Oilfield Wax Inhibitors
申请人:Moreton David J.
公开号:US20100269406A1
公开(公告)日:2010-10-28
Paraffin-containing liquid pour point depressants comprising the reaction product of a hydrocarbyl-substituted phenol and an aldehyde wherein: the olefin used in the preparation of the hydrocarbyl-substituted phenol has a high vinylidene content; the reaction between the hydrocarbyl-substituted phenol and the aldehyde is acid or base catalyzed; and/or the reaction further comprises phenol, are particularly useful for treating crude oils which have an initial pour point of 4° C. or higher, decreasing the fluid's pour point and improving the fluid's low temperature handling properties.