Telescoping centralizers for expandable tubulars

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 43/10 (2006.01) E21B 17/10 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2501882

A method of centralizing tubulars prior to cementing and subsequent expansion involves using a plurality of telescoping cylinders whose leading or trailing end is closed and which are extended by applied internal pressure in the tubular or some mechanical means. The tubular is expanded from its interior with the cylindrical telescoping members still extended. The cement is pushed all around the tubular due to the centralizers. After the cement is delivered the expansion of the tubular pushes the telescoping members into the borehole wall.

L'invention concerne un procédé permettant de centraliser des éléments tubulaires avant la cimentation et l'expansion subséquente de ceux-ci. Le procédé consiste à utiliser une pluralité de vérins télescopiques dont l'extrémité avant ou arrière est fermée et qui sont étendus au moyen d'une pression interne appliquée dans l'élément tubulaire ou de quelques moyens mécaniques. L'élément tubulaire est étendu à partir de l'intérieur lors que les éléments télescopiques cylindriques sont toujours étendus. Le ciment est poussé tout autour de l'élément tubulaire à cause des centreurs. Une fois le ciment fourni, l'expansion de l'élément tubulaire pousse les éléments télescopiques dans la paroi du puits de forage.

LandOfFree

Say what you really think

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

Rating

Telescoping centralizers for expandable tubulars does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telescoping centralizers for expandable tubulars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telescoping centralizers for expandable tubulars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2044658

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