composto, composição de fluido de perfuração, processo de preparação de um composto de poliamida e uso de um composto

摘要

The present invention generally relates to emulsifiers for oil-based drilling muds comprising an emulsifier based on the polyamides derived from fatty acid/carboxylic acid and alkoxylated polyamines. The invention also relates to oil or synthetic based drilling fluids comprising the emulsifiers of the invention and to drilling methods utilizing same.