Abstract: A method for reducing the pressure of fluid within subsea equipment. The method includes the steps of: (a) providing a pipe, (b) laying the pipe on the sea floor, (c) providing a connector, (d) connecting the pipe to the subsea equipment via the connector, and (e) extracting fluid from the subsea equipment through the connector and into the pipe. Apparatus for reducing the pressure of fluid within subsea equipment by extracting fluid from the subsea equipment.

Abstract: A connection end-piece of a flexible pipe includes an end vault extending along a central axis; an outer cover fixed to the end vault and defining, with the end vault, a reception chamber for receiving an end section of the armor elements of the flexible pipe; at least one annular member applied externally to the armor elements of the flexible pipe, the annular member being at least partially accommodated in the reception chamber between the armor elements and the outer cover. The annular member applies a radial tightening pressure higher than 100 bars onto the armor elements toward the central axis of the flexible pipe.

Abstract: A method for reducing the pressure of fluid within subsea equipment. The method includes the steps of: (a) providing a pipe, (b) laying the pipe on the sea floor, (c) providing a connector, (d) connecting the pipe to the subsea equipment via the connector, and (e) extracting fluid from the subsea equipment through the connector and into the pipe. Apparatus for reducing the pressure of fluid within subsea equipment by extracting fluid from the subsea equipment.

Abstract: The present disclosure relates to a system (10) for transferring fluid between a first surface installation (11) and a second surface installation (12), comprising a tubular transfer conduit (25) that can be deployed between the two surface installations, the first end (28) of the conduit being connected to piping of the first surface installation (11) while the second end (29) is intended to be connected to a collector (20) of the second surface installation (12), said tubular transfer conduit (25) being suspended beneath a support and guidance structure (40) by a link (52).

Abstract: An end-piece having: an end vault extending along a central axis; an outer cover fixed to the end vault and defining, with the end vault, a reception chamber for receiving an end section of the armour elements; at least one annular member applied externally to the armour elements of an armour layer, the annular member being al least partially accommodated in the reception chamber between the armour elements and the outer cover. The annular member applies a radial tightening pressure higher than 100 bars towards the central axis onto the armour elements.

Abstract: The device of the disclosure comprises an assembly (22) for collecting material on the bed (12) of a body of water (14), a riser (48) for lifting the solid material, and a pump (90) for lifting the solid material collected by the collection assembly (22) in the riser (48) towards the surface facility (26). The device also comprises a separator (42) for generating a stream having a high content of solid material and a stream having a low content of solid material, the separator (42) including a lower outlet (76) for discharging the stream with high content of solid material. The device comprises an upstream hose (40) connecting the collection assembly (22) to the separator (42), and an intermediate pipe (44) connecting the or each discharge outlet (76) of the stream with high content of solid material to the riser (48), the delivery outlet (100) of the pump being tapped into the intermediate pipe (44).

Abstract: The device of the disclosure comprises an assembly (22) for collecting material on the bed (12) of a body of water (14), a riser (48) for lifting the solid material, and a pump (90) for lifting the solid material collected by the collection assembly (22) in the riser (48) towards the surface facility (26). The device also comprises a separator (42) for generating a stream having a high content of solid material and a stream having a low content of solid material, the separator (42) including a lower outlet (76) for discharging the stream with high content of solid material. The device comprises an upstream hose (40) connecting the collection assembly (22) to the separator (42), and an intermediate pipe (44) connecting the or each discharge outlet (76) of the stream with high content of solid material to the riser (48), the delivery outlet (100) of the pump being tapped into the intermediate pipe (44).

Abstract: The invention present disclosure relates to a system (10) for transferring fluid between a first surface installation (11) and a second surface installation (12), comprising a tubular transfer conduit (25) that can be deployed between the two surface installations, the first end (28) of the conduit being connected to piping of the first surface installation (11) while the second end (29) is intended to be connected to a collector (20) of the second surface installation (12), said tubular transfer conduit (25) being suspended beneath a support and guidance structure (40) by a link (52).

Abstract: A method of fabricating a flexible pipe for conveyance of fluid, comprising: winding at least one metal element in a short pitch helix around an inner sealing sheath for withstanding radial forces in the inner sealing sheath; preshaping a metal strip to form at least one ply of tensile armor tendons; winding the ply of tensile armor tendons in a long pitch helix around the at least one metal element; and applying an external protective sealing sheath around the at least one ply of tensile armor tendons.

Abstract: The invention concerns a flexible duct (1) comprising from inside outwards a carcass (2) produced by a short-pitched metallic helical winding forming butt gaps (12), an overlapping layer (10) acting as a heat shield consisting of helically wound plastic strips (10a, 10b), a sealed inner pressure sheath (3), extruded in plastic on said overlapping layer (10), at least an armouring web (5) and at least an outer sealing sheath (7). The invention is characterised in that the overlapping strips (10a, 10b) are wound at a winding angle less than 35°.

Abstract: For transferring a fluid between at least two floating supports or one floating and one fixed support, a rigid hollow transport line is immersed with a cable suspension system in the sea. A flexible connector links each end of the rigid transport line to one of the supports. The entire rigid transport line including its ends is immersed in the sea at a depth which is greater than the turbulent zone of the sea. Each connector provides continuity of oil flow between the two floating supports via the rigid transport line.

Abstract: The invention concerns a flexible duct (1) comprising from inside outwards a carcass (2) produced by a short-pitched metallic helical winding forming butt gaps (12), an overlapping layer (10) acting as a heat shield consisting of helically wound plastic strips (10a, 10b), a sealed inner pressure sheath (3), extruded in plastic on said overlapping layer (10), at least an armouring web (5) and at least an outer sealing sheath (7). The invention is characterised in that the overlapping strips (10a, 10b) are wound at a winding angle less than 35°.

Abstract: This flexible tubular pipe 1 comprises at least, from the inside outward, a carcass 3 made of interlocked strip, an internal sealing sheath 4, a cylindrical pressure vault 5 consisting of a winding of an interlocked profiled metal wire would in a helix with a short pitch, at least one ply 7, 8 of tensile armor tendons wound with a long pitch, and an external protective sealing sheath, and it is characterized in that at least one armor ply is made of steel strip 10 advantageously shaped by bending.

Abstract: Device for transferring fluid between at least two floating supports of the type comprising a rigid hollow transport line (1) submerged catenary-fashion in the sea, flexible connecting means (10) connecting each end (2,3) of the rigid transport line (1) to one of the said floating supports (4,5), and it is characterized in that the entirety of the rigid transport line (1) including the said ends (2,3) is submerged in the sea to a depth (P1) which is greater than the said turbulent zone, the said connecting means (10) ensuring continuity of flow of the crude between the two floating supports (4,5) via the said rigid transport line.

Abstract: The invention concerns a flexible tubular pipe comprising, from inside outwards, a web (1) made of interlocked steel strips, an inner impervious sheath (2) in polymer material, a short-stepped helical winding of interlocked forming wire (3) arranged above the internal sheath (2), at least a hoop (4) consisting of a short-stepped metal wire winding without interlock, at least a long-stepped tractive armouring layer (5) wound around the pressure vault and an outer polymer protective and sealing sheath (8); the sickness (Ef) of the hoop (4) is greater than the thickness (Ez) of the metal forming wire (3), preferably by one to three times.

Abstract: This one-piece subsea flexible multilayer tubular pipe comprises a carcass (1) made of interlocked metal strip, an inner sealing sheath (2) made of a polymer material, a winding of an interlocked metal element (3) wound in a helix with a short pitch, at least one ply (5) of tensile armor layers wound with a long pitch around the pressure vault, where appropriate at least one thermal insulation layer (7) and an outer protective sealing sheath (8); this pipe has, over its length, sections intended for regions of different use and the physical characteristics of at least one of the layers are modified at manufacture over at least one section of the length of the pipe, without modifying the outside diameter of the said layer, so as to tailor the properties of the pipe in this section to the conditions for the zone in which it will be used.

Abstract: A tubular flexible pipe which from the inside outward includes an inner sealing sheath of polymer, a cylindrical pressure vault comprised of a helical wire winding with gaps between the windings, perhaps a wound tensile armoring layer and a scaling outer sheath. The vault includes an elongated masking element, at least partially masking the gaps between the windings of the wire and being at the inner sheath, The masking element is a wire helically coiled in a recess at the inner face of the vault or is an axial extension of the vault wire.

Abstract: A flexible tubular pipe having an internal sheath and a pressure vault around the sheath with a helically would short pitch metal wire. The metal wire has an I-shaped cross-section with a narrowed central web and greater thickness internal and external flanges. Recesses in at least one set of the flanges enable fastening elements to be installed for holding to adjacent wire windings. The ratios of widths of the flanges, height and width of the wire, moments of inertia in the width wise and radial direction are disclosed.