E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 36/00 (2006.01) C09K 8/592 (2006.01) E04B 1/74 (2006.01)
Patent
CA 2669400
The present inventions include an insulating fluid comprising a non-particulate viscosifying polymer, a water or brine, a cross-linking agent, and insulating particulates. The insulating fluid may be produced by performing the following steps in any order: adding a non-particulate viscosifying polymer to a brine, adding a cross-linking agent, adding insulating particulates, and optionally adding a solvent. The insulating fluid may be injected into an annulus surrounding a pipe such as production tubing, casing, surface pipelines, subsea pipelines, or risers.
La présente invention concerne un fluide isolant comprenant un polymère non-particulaire de viscosification, de l'eau ou de la saumure, un agent de réticulation et des substances particulaires isolantes. Le fluide isolant peut être produit en effectuant les étapes suivantes dans n'importe quel ordre : ajouter un polymère non-particulaire de viscosification à de la saumure, ajouter un agent de réticulation, ajouter les substances particulaires isolantes et éventuellement ajouter un solvant. Le fluide isolant peut être injecté dans un anneau entourant un tuyau tel qu'une tuyauterie de production, une enveloppe, des canalisations en surface, des canalisations sous-marines ou des canalisations de montée.
Lo Sho-Wei
Qiu Xiaoping
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Shell Internationale Research Maatschappij B.v.
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