Casing and flexible tubular conduit comprising such a casing and process for producing it
OwnerJose Mallen Herrero, Guy Le Bail +1inventors
InventorsJose Mallen Herrero, Guy Le Bail, Jany Feret
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Abstract
The invention has mainly as its object a metal tubular tube (1) comprising hollow compartments (7), and a flexible tubular conduit comprising at least one such tube. The tube according to the invention is characterized by the fact that it comprises at least one hollow channel (7) formed by walls belonging to a strip and spirally wound around an axis (6) of tube (1). The invention applies mainly to the production of flexible tubular conduits for transporting hydrocarbons.
Claims14
A flexible metallic tube having an axis, comprising at least one interlocking shaped strip having a continuous section and substantially constant thickness and being spirally wound around said axis, said at least one interlocking strip comprising a central part and two lateral interlocking parts, wherein said tube comprises two hollow closed channels spirally wound about said axis and formed by walls belonging to a same turn of said at least one shaped strip wherein said two hollow closed channels are defined by one of said two lateral interlocking parts.
Dependencies are inferred from the claim text.