E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/117 (2006.01)
Patent
CA 2653725
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yield strength. The inner layer enables the tube to withstand wellbore compressive pressures, which may, depending upon the material selected, include relatively high pressures, while the outer layer contains any fragments of the inner layer that result upon detonation of the gun. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Cette invention concerne un tube porteur conçu pour être utilisé dans un perforateur de puits de forage, lequel tube porteur comprend des couches interne et externe choisies parmi des matériaux présentant différentes propriétés physiques comparatives. La couche interne présente une résistance à la compression supérieure et la couche externe présente une limite d'élasticité conventionnelle plus importante. La couche interne permet au tube de supporter les pressions du puits de forage qui peuvent comprendre, selon le matériau sélectionné, des pressions relativement élevées, alors que la couche externes contient tous les fragments de la couche interne résultant de la détonation du perforateur.
Hoelscher Christopher
Lagrange Timothy Edward
Pratt Dan W.
Weisner Lesley Alan
West Jeffrey Michael
Cassan Maclean
Owen Oil Tools Lp
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