Oilfield make-up and breakout tool for top drive drilling...

Details Oilfield make-up and breakout tool for top drive drilling... Oilfield make-up and breakout tool for top drive drilling...

E - Fixed Constructions

21

B

E21B 19/00 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2122622

An apparatus and method are disclosed for the make-up and breakout of oil well drill pipe for a top drive drilling system, including a tool joint box pipe clamp (100) for hoisting of a drill pipe (12) for the make-up and breakout operations. The clamp (100) has an annular body (102) which is inserted in the box (18) adjacent the threads thereof. A handle (158) is used to cam wedges (130) on a conical outer surface of a conical section (110) of a mandrel (106) to form a nipple (131) which tightly engages the box. In this manner, the pipe can be hoisted by a cable at an upper connection (159), and the pipe can be easily handled since no chains or cables are needed around the exterior of the joint.

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