دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pl: the tongs latched on the drill pipe joint hanging in the totary by the slips, used to keep the pipe from turning as the makeup or breakout tongs (the lead tongs) apply torque to make up or break out the tightened tool joint connection. Compare lead tongs.

n: A tong suspended in the derrick, normally on the drillers right, used to hold box end of the tool joint while the pin end is loosened and unscrewed. Also called a make-up tong, as it is moved to pin end to tighten the joint to the recommended torque after

n pi: tongs that are used to start unscrewing one section of pipe from another section, especially drill pipe coming out of the hole. Compare makeup tongs. See also tongs.

n: See tong.

n: a wire rope, one end of which is connected to the end of the breakout tongs and the other end of which is attached to the breakout cathead. When the driller activates the cathead, the cathead pulls on the jerk line with great force to apply torque to break out a tool joint (or to tighten a drill collar connection).

n: a passage of steel wire that connected with automatic cathead.

(pronounced Iced") n pi: the pipe tongs suspended in the derrick or mast and operated by a chain or a wire rope connected to the makeup cathead or the break- out cathead. Personnel call the makeup tongs the lead tongs if pipe is going into the hole;similarly, they call the breakout tongs the lead tongs if pipe is coming out of the hole. Compare backup tongs.

n: a pipe tong suspended in the dercick, normally on the left of the driller, used when coming out of the hole to break the connection operated through wire line tied to breakout cathead. Inthis operation it is on pin end of joint to be broken. During makeup

n pi: tongs used for screwing one length of pipe into another for making up a joint. Compare breakout tongs. See also tongs.