Coflexip

Elf Atochem S.a.

Technip France

Coflexip, Sa

Institut Francais Du Pe'trole

Jean Hardy

Albert Strassel

Michel Paul Morand

Alain Coutarel

Jacques Jarrin

Bernard Dewimille

Alain Driancourt

Ren&eacute; Antoine Maloberti

A flexible tubular conduit for transporting hydrocarbons comprising at least two metal sheathing covers which are separated by a plastic anti-wear layer. Each cover is produced by helically winding a metal longitudinal element. The anti-wear layer is produced by helically winding a plastic material strip. The plastic material comprises an amorphous polymer with a glass transition temperature ranging from 175 to 255&#xb0; C.

Flexible tubular pipe with an anti-wear sheath

A flexible tubular pipe, for example, for the transport of hydrocarbons. The pipe comprises successive independent layers including helical coils of strips or different sections and at least one polymer sheath. At least one of the coils is a strip or strips of polytetrafluoroethylene (PTFE).

Flexible tubular pipe, especially for oil production, having a PTFE winding

Flexible pipeline having a dual-layer sheath of polymer

A lagged flexible tubular pipe for conveying fluids, produced by helically winding at least one strip made of thermal insulation around a flexible central core at a uniform pitch and with a gap. Jointly winding gap-free an intermediate extruded section into the gap between the turns of strip and sealing the gap. The intermediate section is made of a material which volume wise is nearly incompressible.

Flexible pipe with windings of insulating strip and spiralling machine intended for manufacturing it

Flexible flowline for conveying fluids

Flexible tubular pipe with an internal impervious polymeric sheath

This invention relates to a flexible metal pipe covered with an impermeable sheath of a shrinkable, preferably semicrystalline polymer or polymers, characterized in that it incorporates between the shrinkable polymer sheath and the metal pipe an intermediate elastomer layer (8), optionally vulcanized or reticulated, and/or a TPE in the form of a continuous tubular sleeve (FIG. 3) or of a tape (FIG. 4 to 6). Sheathed pipes of this type are particularly suitable for flexible pipelines, optionally with suitable supports, for carrying oil and gas.

Flexible metal pipes with a shrinkable polymer sheath, a process for

The present invention relates to a flexible tubular conduit with a jacket or tube made of crosslinked polyethylene, specially crosslinked polyethylene, and a method for manufacturing the conduit. A jacket or tube is made from polyethylene crosslinked by hydrolysis.

Process for manufacturing a flexible tubular conduit having a jacket

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Barentin, France

Jean Hardy