دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to flip the spinning chain up from a tool joint box so that the chain wraps around the tool joint pin after it is stabbed into the box. The stand or joint of drill pipe is turned or spun by a pull on the spinning chain from the cathead on the drawworks.

n: The spinning chain that be used to help tool joint pin screwing on tool joint box.





to jump the spinning chain from the box end of the joint to the pin end of the joint after the connection has been stabbed. The chain is pulled by a rope from the cat-head to tighten the joint.