E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 4/00 (2006.01) E21B 4/18 (2006.01) E21B 7/06 (2006.01)
Patent
CA 2706590
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.
L'invention concerne un système de forage comprenant une tige de forage rotative (12) raccordée à une unité de traction (10), et un système de forage pouvant être dirigé (18, 20, 22) raccordé à l'unité de traction (10) et pouvant être déplacé par celle-ci.
Downton Geoffrey C.
Iskander Sami
Utter Robert
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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