C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 5/08 (2006.01) C08L 101/14 (2006.01) C09K 8/588 (2006.01) E21B 36/00 (2006.01) F16L 59/15 (2006.01)
Patent
CA 2497307
A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.
La présente invention concerne un fluide de garniture d'étanchéité isolant thermique. Il contient au moins un polymère superabsorbant pour l'eau et éventuellement de l'eau et/ou de la saumure, ainsi qu'un polymère viscosifiant. Cette composition est capable d'empêcher les pertes de chaleur indésirables par le tube de production ou les transferts de chaleur non contrôlés vers les espaces annulaires extérieurs. La viscosité de la composition est suffisante pour réduire la vitesse du courant de convection à l'intérieur de la zone annulaire.
Javora Paul H.
Lopez Cristian A.
Qu Qi
Wang Xiaolan
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company
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