E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/04 (2006.01)
Patent
CA 2599204
A system for use in gravel packing operations wherein a gravel placement mandrel (38) defines an axial flowbore (40) and two or more lateral slurry- flow ports (48) for communication of slurry from the flowbore to the interior of the wear sleeve/blast liner (30). The slurry flow ports are oriented so as to distribute the slurry in different outwardly radial directions. The slurry flow ports are also axially offset from one another along the gravel placement mandrel body. Relatively equivalent flow rates or flow amounts are provided through each of the slurry flow ports. Improvements are also provided in the geometry of the slurry flow ports to enhance the flow of slurry through them.
L'invention porte sur un système de mise en place de massifs de gravier utilisant un mandrin présentant un alésage axial et au moins deux ports d'écoulement de la boue permettant de faire passer la boue de l'alésage axial vers l'intérieur du doublage du protecteur de tige antidéflagration. Lesdits ports d'écoulement sont orientés de manière à diriger la boue dans différentes directions radiales. Ils sont par ailleurs décalés axialement l'un par rapport à l'autre le long du mandrin de mise en place du gravier, et le débit de boue de chacun d'eux est sensiblement équivalent. De plus des améliorations apportées à leur géométrie permettent d'accroître ce débit.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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