Drillstring with stabilisers for re-entering a primary wellbore

Details Drillstring with stabilisers for re-entering a primary wellbore Drillstring with stabilisers for re-entering a primary wellbore

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 41/00 (2006.01)

Patent

CA 2326489

A well comprising a primary wellbore and a secondary wellbore leading from said primary wellbore wherein a juncture is formed therebetween, said juncture lined with a tubular member extending from said primary wellbore into said secondary wellbore, characterised in that a stabiliser is provided for, in use, stabilising a mill milling an opening in said tubular into said primary wellbore. A method for milling an opening in a tubular in a well of the present invention, the method comprising the step of milling an opening in said tubular member whilst being stabilised or guided by said stabiliser. The invention also provides a tubular member, a mill, a stabiliser and a system for milling an opening in a tubular in a well of the invention.

Dans un puits comprenant un trou de forage primaire (W) et un trou de forage secondaire (L) partant de ce trou de forage primaire (W), on forme entre eux une jonction, laquelle est garnie d'un élément tubulaire (14) s'étendant du trou de forage primaire (W) jusque dans le trou de forage secondaire (L), cette invention se caractérisant en ce qu'un stabilisateur (36, 40) est prévu pour stabiliser, pendant l'exploitation, une fraise fraisant une ouverture dans l'élément tubulaire (14) conduisant au trou de forage primaire (W). Cette invention présente un procédé servant à fraiser une ouverture dans un élément tubulaire d'un puits, ce procédé consistant à fraiser une ouverture dans cet élément tubulaire, opération pendant laquelle ledit élément tubulaire est stabilisé ou guidé par ledit stabilisateur. Cette invention se rapporte également à un élément tubulaire, à une fraise, à un stabilisateur et à un système servant à fraiser une ouverture dans un élément tubulaire d'un puits.

Affiliated with

Also associated with

Rating

Drillstring with stabilisers for re-entering a primary 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 Drillstring with stabilisers for re-entering a primary wellbore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drillstring with stabilisers for re-entering a primary wellbore will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1614383