Abstract: The present invention relates to a system and method for uncovering and removing pipeline from the seafloor using a subsea trenching system using pressurized water to uncover pipe, a subsea shear carried by a barge to cut lengths of the pipeline, and a grapple carried by a barge to lift cut lengths of pipeline for placement on a pipe haul and recovery barge.

Abstract: A method approximates and connects an off shore riser duct to a floating unit, includes installing a tubular coupling recipient on the floating unit at a riser coupling level, the coupling recipient having an annular side wall extending around a longitudinal axis. A pulling device is on the floating unit at a pulling device level above the riser coupling level. The pulling device pulls a line extended through the coupling recipient and connected to a pulling head at a riser duct upper end. The riser duct upper end is pulled into the coupling recipient, providing a locking mechanism to lock a coupling adapter against downward withdrawal. Extending the line along a curved deviating surface deviates the pulling direction. The curved deviating surface is formed by a deviating member connected to the coupling recipient at a distance from the longitudinal axis smaller than an annular side wall to longitudinal axis distance.

Abstract: A packing module includes a volumetrically efficient structure for separately retaining sensors and a cable of a sensor array. The packing module includes a tray that supports the sensors and a retaining leaf arrangement that extends outwardly from the tray to retain the cable on the tray. The retaining leaf arrangement includes a plurality of nested leaves that are spaced relative to each other. Packing the module includes placing the sensors separately and in succession on the tray and inserting a portion of the cable in the retaining leaf arrangement in between each placing of a sensor. The placement of a sensor and insertion of a portion of the cable occurs alternately until the entire sensor array is accommodated. Deployment of the sensor array may occur by alternately removing a sensor and a portion of the cable until the sensor array is displaced from the module.

Abstract: The present invention provides a system for coupling between a bend stiffener (1) and a bell month (2) comprising a plurality of locking mechanisms (3), wherein each locking mechanism (3) is secured externally to the bell mouth (2) and comprises a movable lug (30) positioned such as to slope downwards, in which the lug (30) accesses the interior of the bell mouth (2) and is actuated by an elastic element (34) designed to exert pressure on the lug (30) in the direction of the interior of the bell mouth (2).

Abstract: A subsea riser is installed by lowering at least one riser conduit to the seabed when piggybacked to an elongate support that comprises at least one flowline. The elongate support may be a pipeline bundle, which may be attached to one or more towheads in a towable bundle unit. The riser conduit may be in fluid communication with the flowline. At the seabed, a free end portion of the riser conduit is detached from the elongate support by releasing subsea-releasable fastenings. Then, with the elongate support and a root end of the riser remaining at the seabed, the detached free end portion of the riser conduit is lifted away from the elongate support to a riser support, such as a platform, an FPSO (floating production, storage and offloading vessel), or a buoy.

Abstract: There is provided a method of interconnecting a conduit and a plurality of subsea structures. The method comprises providing a first manifold header in-line of the conduit, where the first manifold header has at least one valve installed therein, A portion of the conduit is lowered to the sea bed such that the first manifold header is engaged with a first subsea structure, and a further portion of the conduit is lowered to the sea bed. A second manifold header, having at least one valve installed therein, is provided in-line of the conduit and engaged with a second subsea structure. The length of conduit provided on the sea bed between the first subsea structure and the second subsea structure is significantly greater than the distance between the first and second subsea structures.

Abstract: A connector can include multiple circumferentially distributed engagement structures which clamp two hubs together, and a biasing device which biases the engagement structures toward an open configuration thereof, in which the hubs are separable from each other. Another connector can include multiple circumferentially distributed engagement structures, each having a recess which receives hubs therein, and a sleeve which encircles the engagement structures and prevents the engagement structures from displacing radially outward from an open configuration thereof, in which the hubs are separable from each other. A method of making a connection to a wellhead can include applying pressure to a connector, thereby allowing multiple circumferentially distributed engagement structures to displace outward to an open configuration thereof, and displacing one hub of the connector into contact with another hub secured to the wellhead, the engagement structures axially aligning the hubs during the displacing.

Abstract: An apparatus includes a flowline connector having an inboard pipe and an outboard assembly. The outboard assembly includes a frame and an outboard pipe moveable within the frame to allow the outboard pipe to be moved toward the inboard pipe. The outboard assembly also includes a profile pipe in which the outboard pipe is received, and the profile pipe and the outboard pipe are connected to move together. The profile pipe includes at least one guide to change pitch or yaw of the outboard pipe to direct the outboard pipe toward alignment with the inboard pipe as the outboard pipe is moved within the frame toward the inboard pipe. Additional systems, devices, and methods are also disclosed.

Abstract: A subsea wellhead assembly and a method of installing a subsea well head assembly. The subsea wellhead assembly includes: a conductor; a subsea wellhead; and subsea riser system equipment mounted on the subsea wellhead. The subsea riser system equipment is connected to the conductor such that forces can be transmitted from the subsea riser equipment to the conductor in both tension and compression.

Abstract: Without limitation, embodiments of the present invention relates to an offshore wellhead platform (100), the offshore wellhead platform (100) comprising a configurable support structure (200) for supporting upper parts of a plurality of conductors (210) through which one or more well processing tasks can be performed, wherein the configurable support structure (200) further provides a first position (150) and a second position (160) for the conductors (210), and the offshore wellhead platform (100) allows movement of an upper part of a conductor (210) between its first (150) and second position (160). In this way, efficiency when processing a plurality of wells is provided since repositioning of the well center is not needed or needed significantly less. Effectively, the wells are brought to the well center so-to-speak instead of the well center needing to be moved to each well.

Abstract: Provided is a cable hang-off arrangement of an elevated platform including a number of tubular enclosures, wherein a tubular enclosure is configured to accommodate a transmission cable arrangement and includes a vertical section arranged for connection to a supporting structure of the elevated platform; a horizontal section arranged at the level of the elevated platform; and a curved section between the vertical section and the horizontal section. Also provided is a tubular enclosure of such a cable hang-off arrangement; an offshore facility; and a method of securing a transmission cable arrangement to such an offshore facility.

Abstract: An underwater steel catenary pipeline riser (SCR) lifting frame comprises a lift frame foundation and an SCR lifting frame comprising a lift frame interface adapted to be connected to the lift frame foundation; a foundation interface; a lift guide configured to accept the lift frame foundation; and a lift slidably disposed about the lift guide, the lift comprising an SCR pull head interface configured to be connected to an SCR pull head. The underwater steel catenary pipeline riser (SCR) lifting frame and systems using it allow for flex joint repair/replacement subsea which do not require large winches, deck re-enforcements, steering winches, and heavy crane lifts required by facility mounted winches above water and also reduces required heavy lifting and overall complexity of flex joint replacement.

Abstract: A subsea connection system has a subsea structure with a flow channel therein and a port at one end of the flow channel, a stab having a flowline connected thereto, and a frame affixed to the stab. The stab is adapted to engage the port of the subsea structure so as to allow a fluid to flow from the flowline into the flow channel. The frame has a hook portion that is engageable with a tool hanger of the subsea structure so as to support the stab in alignment with the port. The frame is pivotable about the tool hanger so as to move the stab toward the port. An actuator is cooperative with the stab so as to move the stab between a retracted position and an extended position.

Abstract: A workstation and method for the installation of a pulling head assembly onto one or more conductors of a cabling system are provided. The workstation incorporates one or more of: a conductor clamp that holds the conductors of the cabling system in place during the installation of the pulling head assembly; a cutting guide having indicia marks that indicate the lengths to which to cut the conductors in order to achieve a staggered pattern of pulling eyes attached to the conductors in the pulling head assembly; a stripping tool that is used to remove a portion of the insulation from the terminal end of each conductor so that the end of the conductor may be inserted into the pulling eye; and a crimping tool that is used to crimp the pulling eyes onto the terminal ends of each of the conductors.

Abstract: A subsea electronics module (SEM) is disclosed. The SEM includes a first axis and a second axis, the first axis being longer than the second axis. Electronic modules are mounted on at least one movable platform which is aligned to move in a direction of the first axis of the SEM. External electrical outlets are mounted on a body and along the first axis of the SEM. The external electrical outlets provide electronic coupling between the electronic modules and components of a lower marine riser package (LMRP).

Abstract: A subsea flexible riser installation has a seabed foundation and a steep-configuration flexible riser anchored to the seabed by the foundation. An attachment formation is fixed relative to the riser and a locating formation is fixed relative to the foundation, both at positions elevated above the seabed. The locating formation is engaged with the attachment formation on the riser. This holds the attachment formation and the riser against movement when engaged, protecting the base of the riser from over-bending and fatigue.

Abstract: Disclosed are an apparatus and method for supporting a portion of a pipeline for conveying produced fluids in a subsea environment to facilitate movement of the portion of the pipeline over a seabed in response to stresses on the pipeline. The portion of the pipeline is supported on a rigid support structure having rotatable components that rotate about an axle attached to the rigid support structure such that the rigid support structure and the portion of the pipeline can move over the seabed. The apparatus and method eliminate the need for costly mud mats or suction piles to accommodate movement in the subsea pipeline and prevent pipeline walking. By facilitating movement of the portion of the pipeline, lateral deformation and axial displacement of the portion of the pipeline can be reduced or eliminated.

Abstract: Certain aspects of the subject matter described here can be implemented as a method. A location of an entrance to a pipeline pig launcher configured to launch a pipeline pig into a pipeline is determined by an automated pipeline pig handling system positioned at a starting location. The pipeline pig is self-aligned with the entrance to the pipeline pig launcher by the automated pipeline pig handling system. The entrance to the pipeline pig launcher is open. The pipeline pig is inserted by the automated pipeline pig handling system into the entrance to the pipeline pig launcher. The entrance to the pipeline pig launcher is closed by the automated pipeline pig handling system after the pipeline pig is inserted into the entrance. The automated pipeline pig handling system is self-returned to the starting location after inserting the pipeline pig into the entrance to the pipeline pig launcher.

Abstract: A stab connector for providing a fluid flow path between a first fluid reservoir and a second fluid reservoir, comprising a stab body coupleable to a receptacle in fluid communication with the second fluid reservoir and moveable inside the receptacle between a sealing position, in which fluid flow in the fluid flow path between the first fluid reservoir and the second fluid reservoir is prevented, and a flow position, in which the fluid flow in the fluid flow path between the first fluid reservoir and the second fluid reservoir is permitted.

Abstract: A riser or jumper assembly for transporting production, exportation or injection fluids is disclosed as is a method for providing buoyancy to such an assembly. The riser or jumper assembly includes a first segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting, a further segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and an intermediate segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and at least one buoyancy element.

Abstract: An interface is provided for a modeling application that determines required current required to deliver a target heat in a direct electrical heating system. The interface facilitates the input of input values implemented by the modeling application without requiring the configuration of an entire model. A technique for determining adjustments to required current between computational iterations reduces the number of iterations needed to converge on a solution.

Abstract: A portable pipe thrusting apparatus for thrusting a pipe into and out of an earthen formation during a thrusting operation is disclosed. The portable pipe thrusting apparatus includes a collar configured to releasably grip the pipe, a support frame, at least one rear leg assembly coupled to a rear end of the support frame, and a bi-directional driver coupled to the collar and the support frame. The rear leg assembly is configured to move the rear end of the support frame between a lowered position and a raised position to align the pipe for the thrusting operation. The bi-directional driver is configured to drive the collar toward and away from the earthen formation to insert and remove the pipe from the earthen formation.

Abstract: An intervention system and method for control of seabed equipment, including a control umbilical connected to a support vessel or rig via a surface winch; a tether connected to underwater seabed equipment; and an umbilical management system unit coupled between the tether and the control umbilical to couple the support vessel or rig to the seabed equipment. The control umbilical and the tether via the umbilical management system unit provide a communications channel for communicating media, including data, electrical power, hydraulic power and/or chemical treatment fluid, from the support vessel or rig to the seabed equipment. The umbilical management system unit allows for easy deployment and management of the control umbilical and tether and can reel in or pay out the tether and/or the control umbilical under remote control or autonomously.

Abstract: A device for laying a pipe in an expanse of water includes a tower (30) intended to protrude along a tower axis (B-B?) in a floating laying structure (10), and assemblies (34A, 34B) for gripping and moving the pipe (12) in order to guide the movement of the pipe (12) towards the expanse of water (11) along a laying axis (C-C?). Each gripping and moving assembly (34A, 34B) is borne by the tower (30). The tower (30) is formed by a barrel (32) extending along the tower axis (B-B?), each gripping assembly transversely protruding from the barrel (32) relative to the tower axis (B-B?).

Abstract: The invention relates to an offshore system for transferring fluid at least partly below sea surface. The offshore system comprises a flexible transporting unit and a first movable structure fix-point with a nominal position and a second structure fix-point arranged at a distance to seabed and at a lower position relative to the sea surface than the first structure fix-point. The flexible transporting unit is fixed to respectively the first structure fix-point and the second structure fix-point to provide a catenary liftable length section of the flexible transporting unit extending between the first structure fix-point and the second structure fix-point, wherein the catenary liftable length section has a touch down point at seabed at nominal position and where the distance to the second structure fix-point can be increased sufficiently to lift the catenary liftable length section from the seabed to form a catenary.

Abstract: A subsea arrangement for connecting an end of a first tubular member to an end of a second tubular member, comprising a base structure, a landing structure which rests on or is configured to be fixed to the base structure using connecting members. The subsea arrangement further comprises a holding structure, to which the end of a tubular member is fixed and which is connectable to the landing structure by being lowered downwards onto the landing structure. The connecting members are configured to give the landing structure a limited movability in a horizontal plane in relation to the base structure so as to allow the landing structure to move horizontally in relation to the base structure and the holding structure, when the landing structure and the holding structure are guided into a correct position in relation to each other.

Abstract: A tool for lowering, alternatively later retrieval, of a pipeline end which is provided with a connecting part designed for mating with and connection to a first connecting part on the seabed is shown. The tool is so arranged that the tool can be brought to the surface again for reuse. The tool comprises a central lifting frame, a guiding part forming an extension of the lifting frame and a lifting yoke, which tool includes gripping mechanisms which, in one situation, are actuatable to partly circumscribe and retain the pipeline end, and, in a second situation, the gripping mechanisms are releasable to release the pipeline end from the lifting frame.

Abstract: A barrier connector arrangement (20) for a multi-pipe pipeline (14) for use in a subsea environment, the pipeline (14) comprising at least one inner pipe (12) and an outer pipe (11) having a dry annulus (13) thereinbetween, and one or more cables (50, 51) extending along the annulus (13), the connector arrangement (20) comprising: an outer housing (21) configured to be joined to the outer pipe (11) to define a dry interior housing with the annulus (13); and one or more dry barrier chambers (26, 27) extending through and welded to the housing (21) for connecting one or more of the cables (50, 51) in the pipeline (14) with one or more external cables in the subsea environment.

Abstract: A connection appliance for connecting an end section of a first conduit to an end section of a second conduit that is fixed to a holding unit of a subsea support structure. The connection appliance comprises a base structure that is connectable to a base frame of the subsea support structure; a sliding unit, to which the end section of the first conduit is to be fixed and which is slidably mounted to the base structure, and an actuating unit configured to act between the base structure and the sliding unit in order to push the sliding unit and the end section of the first conduit axially forwards in relation to the base structure so as to bring the end sections of the conduits into contact with each other.

Abstract: This invention is a hydraulic operated pipe pincher. It has a head segment having two hydraulic jacks linked with said head section, a sliding die head housing with said jacks connected to said sliding die head and a foot segment having a die linked with said foot segment. A boat is located on the surface of the water above where the pipe is to be pinched is located. The pipe pincher would be lowered and positioned around the pipe by way of a manipulator arm on a deep water submarine. The sliding die head would then be forced down against the pipe to pinch the pipe closed to restrict or nearly stop the flow of oil within the pipe. The dies are shaped to compress the pipe from each side equally.

Abstract: A simple, compact, lightweight, and inexpensive pipe assembling device (1) for welding and affixing connection flanges (3, 4) to both ends of a connection pipe (2) with high reproducible accuracy on the basis of electronic data for manufacturing design pipes, the connection pipe (2) comprising a straight pipe or a bent pipe for conveying fluid such as gas or running water. The pipe assembling device comprises a pair of left and right, the first and second flange positioning mechanisms (5, 6), at least one of which can move on a horizontal plane so as to approach and separate from each other in the direction in which the pair is separated from each other.

Abstract: An offshore pipelaying vessel for laying a pipeline on a seabed includes a pipeline-laying installation having a preassembly line; an inspection station; an assembly line with a pipeline assembly station to assemble a pipeline to be launched from the vessel by joining multi and/or single length pipe sections end to end; and a conveyor system for transporting multi and single length pipe sections, said conveyor system comprising an entry-and-exit location, wherein the conveyor system is configured to allow transportation of multi and/or single length pipe sections at least along the following routes: directly from the entry-and-exit location to the assembly line; indirectly from the entry-and-exit location to the assembly line via the preassembly line and said inspection station; and from the entry-and-exit location to the preassembly line and said inspection station, and after passing said inspection station directly to the entry-and-exit location.

Abstract: A connector assembly, riser assembly and method of producing a connector assembly are disclosed. The connector assembly includes a body portion for locating over a flexible pipe and arranged to be connectable to or formed integrally with one or more buoyancy compensating element, and one or more protrusion extending from the body portion and arranged to reduce or interrupt vortex induced vibrations in water surrounding the flexible pipe in use.

Abstract: A method for designing and fabricating a mine seal includes determining an initial thickness for a mine seal based on a predetermined underground opening, developing and solving a numerical model for response of the mine seal upon application of a blasting pressure, and determining whether the mine seal meets predetermined design criteria. A mine seal having a minimum seal thickness may be fabricated after determining the mine seal meets the predetermined design criteria.

Abstract: The invention relates to a marine pipelaying system comprising a vessel (1) provided with a pipeline launch tower (6). The tower (6) comprises pipe laying equipment defining a tower firing line, and is adapted for launching a pipeline (20) along the firing line into the sea. The system furthermore comprises a hang off module (15) supported in the lower part of the firing line for clamping and supporting the weight of previously launched pipeline (20) as well as a stinger for guiding the launched pipeline (20). The stinger (10) is supported at its upper end in the lower part of the firing line. The stinger is displaceable from the firing line.

Abstract: A method of joining two portions of an underwater pipeline for conducting fluid and/or gas on the bed of a body of water, the method including the steps of: joining a telescopic sleeve, having a first coupling head, to a first end of a first pipeline portion above the body of water; positioning the first end, the telescopic sleeve, and the first coupling head in a first given position on the bed of the body of water; joining a second coupling head to a second end of a second pipeline portion above the body of water; positioning the second end and the second coupling head in a second given position, close to the first coupling head, below the body of water; and connecting the first and second coupling head hermetically below the body of water.

Abstract: A subsea hanging device comprises a hanging frame 1 adapted to support an assembly (such as a gooseneck 3 and a subsea connector 4 being used to attach a heavy pipe 7 to a pipe hub 11 on the seabed), a hanging eye 8 which slides on said frame when a shaft 10 threaded through it is axially rotated, and a ROV drive bucket 12 attached to one end of the shaft. A guide funnel 13, 16 pivoted to the frame and adapted to fit over a guide post 17 on the seabed actuates a pointer 15 which indicates on a scale 14 whether the hanging angle needs adjustment to enable the connector 4 to be engaged with the hub 11.

Abstract: The present invention relates to a tubular installation system (10) for J-laying tubulars comprising a J-lay tower structure (100), a tubulars supply system and a loader device (20) comprising tubular grippers (21a-c) and a boom (24) for transporting a tubular, an accessory supply system (200, 201, 202) and accessory handling means (29) for transporting an accessory between the essentially horizontal accessory supply position and the firing line. According to the invention, the accessory handling means (29) are distinct from the tubular grippers (21a-c) and are attached to the boom (24) of the loader device, at a different position than the tubular grippers, such that the loader device can be used as desired for transporting a tubular or an accessory between the respective supply position and the firing line.

Abstract: The present invention regards a method for laying pipelines on the seabed comprising the steps of attaching an end (2) of the pipeline (1) to a structure (10, 20), lowering the structure with the pipeline to the seabed, allowing the pipeline end to pivot relative the structure, measuring the inclination of the pipeline end relative to the seabed, modifying a pipe spool such that one end is given the same inclination of the end as the pipeline and that at least one part of the pipe spool will be resting on the seabed after connection, connecting the pipe spool to the pipeline. The invention also regards a pipeline installation device where at least a one side of a top structure is allowed to move relative a foundation structure.

Abstract: Methods and apparatus for deploying pipeline from a vessel are described in relation to pipelines with installed accessories. One or more accessory support structures are installed at appropriate bedding locations on the seabed. In deploying pipeline from a vessel, an accessory is then attached at a position along the pipeline to correspond with the pre-installed accessory support structure bedding location. The pipeline and attached accessory are deployed and guided into engagement with the pre-installed accessory support structure on the seabed such that the pipeline is deployed substantially horizontally through the accessory support structure, and the accessory is supported by the pre-installed accessory support structure at the bedding location.

Abstract: Modular stress joints usable to compensate for forces applied to a subsea riser or other structure include a base member and one or more additional members. Members having desired lengths can be selected such that the sum of the length of the base member and additional members defines a desired total length. Members having desired wall thicknesses can be selected such that a combination of the wall thicknesses of the base member and each additional member defines an overall wall thickness or stiffness. The total length, overall wall thickness, or both correspond to expected forces applied to the subsea riser or structure, such that the stress joint is adapted to compensate for the forces and prevent damage. The number or length of members used and their thickness or other characteristics can be varied to provide multiple lengths and stiffnesses, such that the stress joint is modular and reconfigurable.

Abstract: A T-piece preformer for forming a T-piece in a pipe-in-pipe (PIP) pipeline for a marine environment, the PIP pipeline has at least inner and outer pipes having an annular space thereinbetween, and one or more cables extending along the annular space. The T-piece preformer includes at least: (a) inner and outer longitudinal collars; (b) annular walls between the inner and outer collars; (c) cable apertures through each annular wall; and (d) one or more guide points on the outer collar radially offset from the or each cable apertures, to guidance for a hole into the T-piece performer. The T-piece preformer can be assembled into a PIP pipeline, and requires a final hole during laying. The T-piece preformer has cable apertures through each annular wall, for allowing continuation of cables in the annular space through the PIP pipeline and T-piece preformer, and the T-piece.

Abstract: A connector assembly, riser assembly and method of producing a connector assembly are disclosed. The connector assembly includes a body portion for locating over a flexible pipe and arranged to be connectable to or formed integrally with one or more buoyancy compensating element, and one or more protrusion extending from the body portion and arranged to reduce or interrupt vortex induced vibrations in water surrounding the flexible pipe in use.

Abstract: A bottom-to-surface connection installation between a plurality of undersea pipes resting on the sea bottom and a floating support on the surface and anchored to the sea bottom, the floating support including a turret; and a plurality of flexible hoses extending from the turret to respective ones of a plurality of rigid pipes, the rigid pipes providing connections between the flexible hoses and respective ones of the plurality of undersea pipes resting on the sea bottom, wherein the installation includes a guide structure maintained in the subsurface between the turret and the top of the rigid pipes, the guide structure being suitable for guiding the flexible hoses, the guide structure having a plurality of first guide elements with respective ones of the plurality of flexible hoses passing therethrough in such a manner that the flexible hose has at least a bottom flexible hose portion in a dipping catenary configuration, and a second flexible hose portion extending entirely above the point of contact between

Abstract: A pipeline termination skid to be mounted to a pipeline end section in order to support a pipeline hub of the pipeline end section during and after the connection of the pipeline hub to a corresponding spool piece hub. The termination skid comprises a base frame having a downwardly directed opening for a pipeline end section, and at least one holding unit provided with a downwardly directed seat having a downwardly directed entrance opening so as to allow the pipeline end section to be moved into contact with the seat by being lifted upwards through the entrance opening. The holding unit is provided with a locking device for securing the pipeline end section to the holding unit in a lifted position in contact with the seat of the holding unit.

Abstract: A method for performing a seismic survey in a water column includes providing a length of flexible cable from a cable storage device disposed on a vessel to a cable handling device adjacent the cable storage device. The flexible cable comprises a specific gravity that is greater than a specific gravity of water in the water column. The method further comprises routing the flexible cable to pass adjacent a workstation disposed on the vessel, deploying a free end of the flexible cable into the water column, attaching at least one of a plurality of seismic sensor units to the cable as the cable passes the workstation, and controlling the motion of the vessel and the rotational speed of the cable handling device to allow the flexible cable to rest on the bottom of the water column.

Abstract: An arrangement on board a vessel to be able to strap at least one cable to a pipeline during continuous and contemporary deployment of the strapped pipe bundle into the sea is shown. The arrangement includes at least a strapping machine which is arranged to be moved forward together with the cable and pipeline in order to perform a strapping operation in concert with the forward advancement thereof. The strapping machine is also moveable rearwards relative to the cable and pipeline for the repositioning to the next strapping operation such that the application of a strap or straps takes place intermittently under the continuous deployment of the pipe bundle. Means for continuous motorized advancement of the respective pipes and cables towards the strapping machine and further into the sea is also arranged.

Abstract: An apparatus for installing means to supply cold water from depth to a floating vessel comprises a template having a plurality of receptacles for receiving a plurality of vertically-oriented cold water pipes. A method for installing a plurality of cold water pipes at a floating, offshore ocean thermal energy conversion facility comprises: lowering such a template to the seafloor; inserting vertically-oriented pipes into the receptacles on the template; providing sufficient buoyancy near the top of the pipe to maintain the pipe in a generally vertical state; positioning a floating vessel having receptacles configured to engage the upper ends of the pipes over the template; raising the template with the inserted pipes from the seafloor until the upper ends of the pipes engage the receptacles; and, locking the pipes in the receptacles such that the pipes are in fluid communication with a cold water sump on the floating vessel.

Abstract: An apparatus for connecting adjacent ends of first and second conduits including a frame assembly including a mounting point for mounting the end of the first conduit in a fixed position, a guide connected to the frame assembly and including first and second guide formations for receiving guide arms attached to the end of the second conduit and a moveable carrier mounted on the frame and including slots for engaging the guide arms. The carrier is moveable between a first position in which the slots align with the guide formations so that the guide arms can pass into the slots, and a second position in which the end of the second conduit is held against the end of the first conduit so as to allow a connection to be formed to secure the ends together.

Abstract: A pipe system comprising a pipe comprising an exterior of the system, the pipe comprising an inner pipe wall; a hydrophobic layer interior to the inner pipe wall; and a liquid interior to the hydrophobic layer and interior to the inner pipe wall, the liquid comprising water and one or more hydrocarbons.