Drill pipe breakout device

Details Drill pipe breakout device Drill pipe breakout device

1994-11-18

1996-08-13

Dang, Hoang C.

Boring or penetrating the earth

Processes

166 7751, 166377, 166380, 173164, 175320, E21B 1900

Patent

active

055447120

ABSTRACT:
A mechanism (10) is disclosed for securing a drill pipe (14) to a saver sub (16) for joint rotation. A slidable collar (24) is provided which has a pair of opposed lugs (28) which slide on opposed flats (18) on the saver sub to insure that the slidable collar rotates with the saver sub at all times. The drill pipe (14) has a pair of opposed flats (30) which are engaged by a portion of the lugs (28) when the slidable collar (24) is moved into the engaged position to insure rotation of the drill pipe with the saver sub.

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