A removable guide member for guiding drill string components...

Details A removable guide member for guiding drill string components... A removable guide member for guiding drill string components...

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2249282

A removable guide member for guiding drill string components in a drill hole includes an elongated body having a centerline axis with a bore extending along the axis. The body terminates in a head end having a preselected radial dimension with respect to the centerline axis. The guide member is adapted to be threadably connected to adjoining drill string components. The head end radial dimension is preselected to space an outer surface thereof in close proximity to a drill hole sidewall, so that if the drill string begins to deviate out of alignment, the outer surface of the head end will contact the drill hole sidewall to stabilize alignment. The guide member can be inserted into any position along the drill string.

Elément de guidage amovible servant à guider des éléments de garniture de forage dans un trou de sondage et comprenant un corps allongé pourvu d'un axe médian le long duquel s'étend un perçage. Le corps se termine en tête possédant une dimension radiale présélectionnée par rapport à l'axe médian. L'élément de guidage est conçu pour être vissé aux éléments contigus de garniture de forage. La dimension radiale de la tête d'extrémité est présélectionnée, de manière à disposer, de distance à distance, une de ses surfaces extérieures à proximité étroite d'une paroi latérale du trou de sondage, de telle sorte que, si la garniture de forage commence à dévier de son alignement, la surface extérieure de la tête d'extrémité vient en contact avec la paroi latérale du trou de sondage, afin de stabiliser l'alignement. On peut introduire l'élément de guidage dans toute position le long de la garniture de forage.

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