دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: 1. to seal the hole against formation fluids by allowing the build up of wall cake.2. to block off the flow of oil into the wellbore.

n: in drilling, to seal the hole off from the formation water or oil by using mud. Applies especially to the undersirable blocking off of the flow of oil from the formation into the well bore. Special care is given to the treatment of drilling fluid to avoid