E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/00 (2006.01) C09K 8/44 (2006.01)
Patent
CA 2623057
A method for sealing a subterranean zone is disclosed. The method includes the steps of preparing a wellbore fluid, placing the wellbore fluid into at least a portion of an annular space between the sidewalls of a wellbore and the exterior of a casing string disposed in the wellbore, and allowing the wellbore fluid to solidify therein, wherein the wellbore fluid includes an oleaginous fluid as the continuous phase of the wellbore fluid, a non- oleaginous fluid as the discontinuous phase of the wellbore fluid, and about 5 to about 50 pounds per barrel of a thermally activated hydrocarbon gellant.
L'invention concerne un procédé permettant d'étanchéifier une zone souterraine. Ce procédé comprend les étapes consistant à préparer un fluide de forage, à placer le fluide de forage dans au moins une partie d'un espace annulaire formé entre les parois latérales d'un puits de forage et l'extérieur d'une colonne de tubage disposée dans le puits, et à laisser le fluide de forage se solidifier dans cet espace. Le fluide de forage contient un fluide oléagineux en tant que phase continue, et un fluide non oléagineux en tant que phase dispersée, et approximativement de 5 à 50 livres par baril d'un gélifiant d'hydrocarbures activé thermiquement.
Kirby Eades Gale Baker
M-I Llc
LandOfFree
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