E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/10 (2006.01)
Patent
CA 2253503
A drill string stabiliser (10) for bore hole drilling apparatus, which comprises a plurality of fixed spiral blade arms (11) provided with replaceable wear elements (12).
Stabilisateur (10) de train de tiges de forage conçu pour une machine de forage de puits et consistant en une pluralité de longerons fixes spiralés (11) pourvus d'éléments d'usure remplaçables.
Russell Frederick Brian
Russell Mark Alexander
Cutting & Wear Resistant Developments Limited
Gowling Lafleur Henderson Llp
LandOfFree
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