دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a small plug that is run through a flow line to clean the line or to test for obstructions. 2. any plug left unintentionally in a pipeline during construction (as in, a rabbit that ran into the pipe). 3. a metal device that is placed in the inner core barrel before coring. When all of the core has been removed from the core barrel, the rabbit, or core marker, falls out to indicate that the barrel is empty.

a drift dropped through tubulars on the rig floor before joint make up.