دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a mixture of hydrochloric and hydrofluoric acids and surfactants used to remove wall cake from the wellbore.

n: also called earth acid, it is mixture of hydrogen chloride, hydrogen fluoride and surface acting agent.




an inexact term, usually meaning a mixture of hydrochloric (HCl) and hydrofluoric acid (HF),HCL/HF. HF will dissolve some silicates and some of the components of drilling mud.