Device and method of lining a wellbore

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 43/10 (2006.01) E21B 7/20 (2006.01) E21B 33/10 (2006.01)

Patent

CA 2537816

A method of sealing the wall of a wellbore (1) as it is being drilled through a subterranean formation using a drill string (3) having a drill bit (4) on the lower end thereof comprises fitting to the lower end of a drill string (3) a device comprising (i) a cylindrically gathered pack of flexible tubing (6), (ii) a receptacle (5) for the gathered pack and (iii) a radially expandable locking means (8) having a first end of the tubing of the gathered pack connected either directly or indirectly thereto, and drilling a first section of wellbore, expanding the locking means (8) against the wellbore wall such that the first end of the tubing that is withdrawn from the gathered pack is locked in place in the wellbore, drilling a second section of wellbore with the movement of the drill string (3) through the wellbore causing the tubing to be withdrawn from the gathered pack (6) and to be turned inside out thereby forming a liner for the second section of wellbore.

La présente invention concerne un procédé pour étanchéifier la paroi d'un puits (1) au cours de son forage dans une formation souterraine au moyen d'un train de tiges (3) qui présente un trépan (4) à son extrémité inférieure. Ce procédé consiste à fixer à l'extrémité inférieure d'un train de tiges (3) un dispositif comprenant (i) un ensemble cylindrique froncé de tubage souple (6), (ii) un réceptacle (5) pour l'ensemble froncé et (iii) un système de blocage (8) qui s'étend en direction radiale et auquel est directement ou indirectement reliée une première extrémité du tubage de l'ensemble, puis à forer une première section de puits, à étendre le système de blocage (8) contre la paroi du puits de façon que la première extrémité du tubage qui est retirée de l'ensemble froncé soit bloquée dans sa position dans le puits, puis à forer une seconde section de puits, le mouvement du train de tiges (3) à travers le puits provoquant le retrait du tubage de l'ensemble froncé (6) et son retournement, ce qui permet de former un revêtement pour la seconde section du puits.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Device and method of lining a wellbore does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and method of lining a wellbore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method of lining a wellbore will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2022183

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.