Flexible tubular conduit comprising a jacket made of crosslinked polyethylene device and process for manufacturing such a conduit
OwnerJean Hardy, Michel Morandinventors
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Abstract
The present invention relates to a flexible tubular conduit with a jacket or tube made of crosslinked polyolefin, especially crosslinked polyethylene. The jacket or tube is made from polyolefin crosslinked by hydrolysis.
Claims5
A flexible tubular conduit for transporting offshore produced live crude oil comprising an internal impervious jacket, an outer jacket, and at least one armoring layer between said jackets, wherein said internal jacket is an extruded jacket of crosslinked polyethylene comprising one of a silane-grafted homopolymer and copolymer of ethylene having a density higher than 0.930 and being crosslinked by hydrolysis such that a level of cross-linking is at least equal to a fixed value at every point thereof, said value being not less than 70%.
A flexible tubular conduit for transporting offshore produced live crude oil, having an internal impervious jacket, an outer jacket, and at least one armoring layer between said internal impervious jacket and said outer jacket, wherein said internal jacket comprises:
- an extruded jacket of cross-link polyethylene comprises one of a silane-grafted homopolymer and copolymer of ethylene having a density of higher than 0.930 and being cross-linked by hydrolysis such that a level of cross-linking is at least equal to a fixed value at every point thereof, said value being not less than 70%.
Dependencies are inferred from the claim text.