Method of creating a casing in a borehole

Details Method of creating a casing in a borehole Method of creating a casing in a borehole

E - Fixed Constructions

21

B

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

Patent

CA 2209224

The invention relates to a method of creating a casing in a borehole formed in an underground formation. The method comprises the steps of (a) installing a tubular liner (11) in the borehole (1), the liner being radially expandable in the borehole whereby the liner in its radially expanded position has a plurality of openings (12) which are overlapping in the longitudinal direction of the liner, (b) radially expanding the liner in the borehole, and (c) either before or after step (b), installing a body of hardenable fluidic sealing material (13) in the borehole so that the sealing material fills said openings and thereby substantially closes said openings. The sealing material is selected so as to harden in said openings and thereby to increase the compressive strength of the liner.

L'invention se rapporte à un procédé de formation d'un tubage dans un trou de sondage réalisé dans une formation souterraine. Ce procédé consiste à (a) disposer une colonne perdue tubulaire (11) dans le trou de sondage (1), cette colonne étant expansible dans le sens radial dans le trou de sondage et comportant, dans sa position radialement élargie, une pluralité d'ouvertures (12) qui se chevauchent dans le sens longitudinal de la colonne, (b) élargir radialement la colonne dans le trou de sondage, et (c) installer, avant ou après l'étape (b), un corps en matière d'étanchéité fluidique durcissable (13) dans le trou de sondage de sorte que ladite matière d'étanchéité remplisse lesdites ouvertures et les referment presque entièrement. Cette matière est choisie de façon qu'elle durcisse dans les ouvertures et augmente ainsi la résistance à la compression de la colonne.

Affiliated with

Also associated with

Rating

Method of creating a casing in a borehole 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 of creating a casing in a borehole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of creating a casing in a borehole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1594142