E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/00 (2006.01) E21B 17/08 (2006.01) E21B 17/10 (2006.01)
Patent
CA 2432038
A method for drilling in unconsolidated formation is taught. In particular, a method for borehole stabilization in an unconsolidated formation includes providing a drill string; rotating the drill string to drive a drill bit to drill a borehole having a borehole wall; driving the drill string against the borehole wall while rotating the drift string to plaster the surface of the borehole wall.
Méthode de forage dans une formation meuble. Plus précisément, une méthode de stabilisation d'un trou de forage dans une formation meuble comprend une rame de forage, la rotation de cette rame pour enfoncer un trépand pour forer un trou muni d'une paroi, l'enfoncement de la rame de forage contre la paroi du trou de forage tout en faisant tourner la rame afin de projeter des enduits sur la paroi du trou de forage.
Angman Per G.
Slack Maurice William
Tessari Robert
Warren Tommy M.
Bennett Jones Llp
Tesco Corporation
LandOfFree
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