دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in cathodic protection. anodes made from metals whose galvanic potentials render them anodic to steel in an electrolyte. They are used up. or sacrificed.

a metal slug, lower in the electromotive series than steel that is hard wired to the casing and buried in a bed of wet soil or below the surface of the water. The corrosion cell in the well then transfers the current to the new anode and the steel in the