Drill string element handling apparatus

Details Drill string element handling apparatus Drill string element handling apparatus

1977-06-24

1979-08-14

Purser, Ernest R.

Boring or penetrating the earth

With magazine for successively moving unconnected, oriented...

173164, 175 85, 175209, 211 60S, 414 22, E21B 1914

Patent

active

RE0300713

ABSTRACT:
An arrangement for the handling of drill string elements, such as tubes or rods, in drill rigs, comprising means for transferring the drill string elements between a magazine and the drill string axis, a drill string centralizer at the front end of an elongated support for guiding the drill string, a spinning device on said transferring means for gripping and rotating a drill string element, said means being adapted to axially displace the drill string element during rotation thereof, and a sleeve brake mounted on the drilling machine for nonrotatably holding a coupling sleeve when the adapter of the drilling machine is disconnected from the drill string.

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patent: 3441323 (1969-04-01), Vincent et al.
patent: 3506075 (1970-04-01), Attebo
patent: 3612190 (1971-10-01), Wills
patent: 3976149 (1976-08-01), Granholm

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