Running and cementing tubing

Details Running and cementing tubing Running and cementing tubing

E - Fixed Constructions

21

B

E21B 31/00 (2006.01) E21B 28/00 (2006.01)

Patent

CA 2543423

A method of running a bore-lining tubing string into a bore comprises running a tubing string, typically a liner string, into a bore while agitating the string. The agitation of the string reduces the friction between the string and the bore wall and thus facilitates the translation of the string into the bore. The agitation may also take place while the tubing is being cemented in the bore. Pressure pulses may be applied to fluid in the bore, which fluid may be cement slurry.

L'invention concerne un procédé d'insertion dans un trou de forage d'une colonne de tubage de pompage destinée à revêtir le trou. Ce procédé consiste à insérer dans un trou de forage une colonne de tubage de pompage, généralement une colonne perdue dans tout en agitant la colonne de tubage. L'agitation de la colonne de tubage réduit la friction entre la colonne de tubage et la paroi du trou de forage, ce qui facilite la translation de la colonne de tubage dans le trou de forage. L'agitation peut également avoir lieu pendant la cimentation du tubage de pompage dans le trou. Les impulsions de pression peuvent être appliquées au fluide contenu dans le trou de forage, ce fluide pouvant être du laitier de ciment.

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