Stabilized drill tube

Details Stabilized drill tube Stabilized drill tube

E - Fixed Constructions

21

B

255/24

E21B 17/00 (2006.01) E21B 17/10 (2006.01)

Patent

CA 2038378

A stabilized drill string component includes an elongated tubular body. This body comprises a tubular stabilization section and at least one further tubular section. These tubular sections are integrally joined together in axially aligned relation. The stabilization section is much shorter than the further tubular section or sections but has a somewhat greater diameter than the latter such that the stabilization section can assist in stabilizing the drill string component during drilling by way of contact with the wall of the well bore. The wearing surfaces of the stabilization section are of substantially harder material than that of the further tubular section or sections thereby to provide substantial resistance to wear.

Composant stabilisé de train de tiges comprenant un corps tubulaire allongé. Ce corps comprend une section tubulaire de stabilisation et au moins une autre section tubulaire. Ces sections tubulaires sont assemblées intégralement selon un alignement axial. La section de stabilisation est beaucoup plus courte que la ou les autres sections tubulaires mais comporte un diamètre sensiblement plus grand que le dernier de sorte que la section de stabilisation puisse contribuer à la stabilisation du composant du train de tiges durant le forage, au moyen d'un contact avec la paroi du trou foré. Les surfaces d'usure de la section de stabilisation sont en matériau sensiblement plus dur que celui des autres sections tubulaires ou des autres sections pour donner une résistance appréciable à l'usure.

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