دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: refer to drill pipe annulus

n: the annulus space between the out diameter surface and the well wall or inwall of the casing

n: refer to drill pipe annulus

n: A casing string that is generally set in place after the surface casing and before the production casing. The intermediate casing string provides protection against caving of weak or abnormally pressured formations and enables the use of drilling fluids o

n: see drill pipe annular.