دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a fishing device made up on a cable-guide assembly to prevent the cable form falling in the hole. It is used in the recovery of wireline tools.

n: fishing equipment used to recover wireline tools stuck in the hole when the wireline or cable is intact. It consists of a cable hanger, spear point rope socket, spearhead overshot, conventional overshots, drill pipe, and elevators.