E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/18 (2006.01) E21B 4/18 (2006.01) E21B 7/06 (2006.01) E21B 21/00 (2006.01) E21B 41/00 (2006.01) E21B 43/26 (2006.01) E21B 43/29 (2006.01) E21B 43/32 (2006.01)
Patent
CA 2239734
A self-advancing drilling system comprising a drilling apparatus, the drilling apparatus having at least one leading fluid cutting nozzle, means on the drilling apparatus to provide forward movement to the drilling apparatus, the drilling system further comprising a drill string formed from a recoverable flexible hose.
L'invention concerne un système de forage automoteur comprenant un appareil de forage ayant au moins un buse de forage frontale, un moyen monté sur l'appareil de forage pour assurer le mouvement vers l'avant de l'appareil de forage. Le système de forage comprend par ailleurs un train de tiges constitué par une conduite souple récupérable.
Meyer Timothy Gregory Hamilton
Stockwell Matthew
Trueman Robert
Bhp Coal Pty. Ltd.
Commonwealth Scientific And Industrial Research Organisation
Goudreau Gage Dubuc
The University Of Queensland
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