Method and device for rotary well drilling

Details Method and device for rotary well drilling Method and device for rotary well drilling

E - Fixed Constructions

21

B

E21B 7/06 (2006.01) E21B 17/10 (2006.01)

Patent

CA 2384281

The invention concerns a method which consists in: introducing into a pre-drilled portion of a well (16) a drilling system comprising a drilling bit (11) assembled with tubular lining elements (15), means for measuring the inclination and azimuth direction of said pre-drilled part of the well, means for rotary friction (26, 27) against the wall of said pre-drilled part and controlled means capable of modifying the friction coefficient of said friction means against the wall; measuring the azimuth direction of the pre-drilled part of the well (16); and varying the friction coefficient of said friction means (26, 27) sufficiently to influence the azimuth direction of the next well portion to be drilled.

Selon ce procédé : on introduit dans une portion pré-forée du puits (16) un système de forage comprenant un outil de forage (11) assemblé avec des éléments tubulaires de garnitures (15), des moyens de mesure de la direction en inclinaison et en azimut de la partie pré-forée du puits, des moyens de friction rotative (26, 27) contre la paroi de cette partie pré-forée et des moyens commandés aptes à modifier le coefficient de frottement de ces moyens de friction contre la paroi ; on mesure la direction en azimut de la partie pré-forée du puits (16) ; et l'on fait varier le coefficient de frottement desdits moyens de friction (26, 27) dans une mesure suffisante pour influer sur la direction en azimut de la portion suivante de puits à forer.

Affiliated with

Also associated with

Rating

Method and device for rotary well drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for rotary well drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for rotary well drilling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1844871