Preform or matrix tubular structure for well casing

Details Preform or matrix tubular structure for well casing Preform or matrix tubular structure for well casing

E - Fixed Constructions

21

B

E21B 33/127 (2006.01) B29C 63/34 (2006.01) D04C 1/06 (2006.01) E21B 17/00 (2006.01) E21B 29/10 (2006.01) E21B 36/00 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2162035

This tubular structure comprises at least a braiding of flexible strands (10) made of fibres (100) that are interlaced with a certain amount of clearance so that the structure is capable of expanding radially whilst being constrained in an axial direction under the application of an overpressure inside the preform or matrix.

Cette structure tubulaire comprend au moins un tressage de mèches souples (10) composées de fibres (100) qui s'entrecroisent avec un certain jeu, de sorte qu'elle peut s'ezpanser radialement tout en se restreignant en direction axiale sous l'effet de l'application d'une surpression à l'intérieur de la préforme ou de la matrice.

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