Tool and method for drilling a lateral well

Details Tool and method for drilling a lateral well Tool and method for drilling a lateral well

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 7/06 (2006.01) E21B 10/00 (2006.01) E21B 10/08 (2006.01) E21B 10/46 (2006.01) E21B 10/50 (2006.01) E21B 10/56 (2006.01) E21B 10/62 (2006.01) E21B 12/04 (2006.01) E21B 17/10 (2006.01)

Patent

CA 2278933

A tool for use in forming a lateral, which tool comprises a formation drill (525) which is provided with a protective layer (527), and a mill (520) for forming a window in casing, the arrangement being such that, in use, said protective layer (527) will inhibit damage to said formation drill (525) whilst said mill (520) forms a window in said casing.

L'invention concerne un outil servant à forer un trou latéral. Ledit outil comprend un foret (525) destiné à percer dans des formations de roches et pourvu d'une couche protectrice (527), et une fraise (520) permettant la formation d'une fenêtre dans le tubage. L'agencement est caractérisé en ce que, lors de l'utilisation de l'outil, ladite couche protectrice (527) permet d'éviter que ledit foret (525) soit endommagé tandis que ladite fraise (520) ouvre une fenêtre dans ledit tubage.

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