E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01)
Patent
CA 2725279
The invention relates to a sealing arrangement (100) for sealing a leak (21) in a casing (2) or for sealing off a production zone (1) where the casing having a circumference and perforations (3) is situated in a borehole (22) downhole, but with a distance to an inner wall of the borehole, creating an intervening space (4) there between. The sealing arrangement comprises a composition (5) for injection into the intervening space or into a leak in the casing, and a non-miscible net comprised in the composition after injection in order to fixate the injected composition in a predetermined position.
La présente invention concerne un agencement détanchéité (100) pour bloquer une fuite (21) dans un tubage (2) ou pour colmater une zone de production (1). Le tubage, qui possède une circonférence et des perforations (3), se situe au fond dun forage (22), mais est à distance dune paroi intérieure du forage, ce qui crée un espace dintervention (4) entre le tubage et la paroi du forage. Lagencement détanchéité comprend une composition (5) destinée à être injectée dans lespace dintervention ou dans une fuite du tubage, et un filet non miscible compris dans la composition, après linjection, afin de fixer la composition injectée dans une position prédéterminée.
Gowling Lafleur Henderson Llp
Welltec A/s
LandOfFree
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