Abstract: A high pressure hose for use within an umbilical includes a hose liner tube surrounded by a first reinforcement layer comprised substantially of ultra high molecular weight polyethylene fibers and a second reinforcement layer surrounding the first reinforcement layer. The second layer comprises at least 50% aramid fibers. The hose has an outer thermoplastic extruded hose jacket.

Abstract: A high pressure hose for use within an umbilical includes a hose liner tube surrounded by a first reinforcement layer comprised substantially of ultra high molecular weight polyethylene fibres and a second reinforcement layer surrounding the first reinforcement layer. The second layer comprises at least 50% aramid fibres. The hose has an outer thermoplastic extruded hose jacket.

Abstract: An umbilical casing for an umbilical, for use in underwater drilling operations includes an inner thermoplastic polymer layer, an outer thermoplastic polymer layer and at least two fibre reinforcement layers between the inner and outer thermoplastic layers. The fibre reinforcement layers are contra helical with each including at least one group of fibre yarns laid helically along the outside of the inner thermoplastic layer. Each group of fibre yarns comprises a plurality of fibre yarns laid to run in side by side fashion along the outside of the inner thermoplastic layer. An umbilical including the casing and methods of manufacture are also provided.

Abstract: The present invention relates to fluid conduit (1) suitable for use in the transportation of working fluids to a wellhead or the like from a topside location or the like. The fluid conduit (1) is suitable for use in a multi-conduit umbilical. The conduit comprises an inner flexible collapse resistant hose (2) surrounded by a hose liner (4), and at least one pair of helically contra-wound high tensile wires (6a, 6b). Each turn of each wire (6a, 6b) is in substantially close contact with adjacent turns thereof. A multi-conduit umbilical comprising a plurality of the fluid conduits bundled together and provided with an outer sheath is also described.

Abstract: The present invention relates to a fluid conduit, and to a multi-conduit umbilical for use in the transportation of chemicals with small molecular size and shape e.g. methanol ethanol and other hydrocarbon fluids used in the oil industry. The conduit comprises a flexible fluid hose encapsulated by at least one metallized layer which is formed and arranged to minimize permeation of a fluid being transported in the fluid hose. In use in a multi-conduit umbilical the metallised layer minimizes permeation into adjacent fluid hoses containing chemicals. The invention is characterized in that the fluid hose(s) have differing levels of encapsulation and thereby permeation, along a given length according to the operational requirements of the fluid conduit/umbilical. Typically such fluid conduits/umbilicals will have lengths in excess of 100 km.