E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/16 (2006.01) E21B 33/13 (2006.01)
Patent
CA 2545371
A plug system for separating fluids is successively introduced into a passage comprising: an assembly comprising a plurality of plugs, wherein at least one plug comprises an outer body (11) and a detachable inner mandrel (13) attached to the outer body; and wherein the plurality of plugs (10, 20, 30) are releasably attached to each other. Frangible devices, such as shear pins (51) may be provided to keep the inner mandrel in place. A baffle adapter (40) may be installed in the casing string, with an inner bore designated to sealingly engage at least one of the plugs.
Cette invention concerne un système de bouchons servant à séparer des fluides successivement introduits dans un passage, lequel système comprend: un ensemble comprenant une pluralité de bouchons, au moins un de ces bouchons comportant un corps extérieur (11) et un mandrin interne détachable (13) fixé au corps extérieur, lesquels bouchons (10, 20, 30) sont fixée amovibles les uns aux autres. Des dispositifs frangibles, tels que des clavettes de sûreté (51), peuvent être utilisés pour maintenir le mandrin interne en place. Un adaptateur de déflexion (40) peut être disposé dans la colonne de tubage, un alésage interne étant conçu pour recevoir de manière étanche au moins un des bouchons.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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