Abstract: A compact subsea pig launcher comprises a tubular magazine for holding a plurality of pipeline pigs in longitudinal succession ready for launching successively into a subsea pipeline. The magazine is shaped to define at least one turn such as a coil around an upright axis. Thus, a series of pigs are stored in longitudinal succession along a path that is curved in plan view around the upright axis. During launching, at least one of the series of pigs is advanced along the path with angular movement around the upright axis.

Abstract: An element for a bend restrictor including a first part and a second part which together provide a cavity for receipt of a flexible pipe, in use, the two parts are pivotably connected together at a first portion thereof and are releasably coupled or couplable together at a second portion thereof. Successive elements may be secured together to form a bend restrictor.

Abstract: A method of active freewheel control (AFW) of a remote-operated pipe crawler vehicle provides a means of retrieving the pipe crawler vehicle after remote visual inspection of a pipe or other passage through a camera assembly on the pipe crawler vehicle. After the vehicle is remotely driven through the pipe to an inspection location, an operator may engage one or more modes to reverse the drive system of the vehicle back to the entry point of the pipe. The AFW system employs an arrangement of integrated sensors and software to intelligently control a simplified drive system that allows the crawler vehicle to assist motion when a tether connecting the vehicle to a control unit is pulled on.

Abstract: A cable puller and associated methods are shown. Useful example methods include pipe bursting using cable pullers as shown. Cable pullers and methods shown provide a mechanical advantage that increases an amount of cable pulled in one cycle. Selected examples are shown that include a pulley located on a distal end of a moving portion of an extending and contracting beam. The pulley and the mechanical advantage it supplies helps to improve the efficiency of the cable puller and reduce manufacturing cost of the cable puller.

Abstract: Use fresh water or water with sufficiently reduced salinity to trigger burst of bacterial cell wall due to osmotic pressure gradient. Combine the freshwater with conventional biocide treatment and pigging to increase the likelihood of killing the bacteria responsible for reservoir souring.

Abstract: A subsea drying system (10) for drying a chamber (12) underwater has an upstream piping (24, 26, 28) for conveying a pressurized drying fluid from a source (18) to the chamber (12); and downstream piping (36, 38, 40) for expelling liquid displaced from the chamber (12) by the drying fluid in an open-loop dewatering mode. In a closed-loop dehumidifying mode, a recirculation path (54) between the downstream piping (36, 38, 40) and the upstream piping (24, 26, 28) conveys drying fluid exiting the chamber (12) back into the chamber (12) after passing through a dehumidifier (58). A valve system selectively closes and opens the re-circulation path to expel displaced liquid when that path is closed and to recirculate drying fluid from the chamber (12) through the dehumidifier (58) to the upstream piping (24, 26, 28) when that path is open.

Abstract: A method and system for dispensing a material through a delivery apparatus is provided. The material initially comprises or is manipulated to comprise a low viscosity. The material either can comprise a curable material or can comprise initiators, which can be activated to raise the viscosity at a later time and position. The low viscosity material is moved through the delivery apparatus for a relatively long distance using low energy. Upon nearing an end use application, the material and/or initiators can be activated by a curing agent, such as a light or heat source, such that the viscosity of the material be raised prior to the end use application thereof. Therefore, the present invention provides a method and system for moving a material normally having a higher viscosity a long distance requiring lower energy and pressure.

Abstract: A method for permanently repairing a fluid delivery system which may be above ground, subterranean, in and under concrete, or within a wall structure. The method comprises disconnecting the source and the discharge portions of the fluid delivery system. A resilient moldable tubing is threaded through the fluid delivery system. The first end of the tube is secured to the first end of the portion of the fluid delivery system. The second end of the tube is next secured to the second end of the portion of the fluid delivery system. The resilient tubing is then filled with heated fluid and pressurized to mold the tubing to the inside diameter of the fluid delivery system. The fluid is cooled to set the tube to the inside diameter of the fluid delivery system, and then drained before reconnecting the source and discharge portions of the fluid delivery system.

Abstract: A pipe replacement system and method are shown. Configurations are shown that include a pulley that does not damage a bursting tool, as the bursting tool is pulled into a pit. Configurations are also shown that include a boom that does not need an extraction cage for the bursting tool.

Abstract: A method of repairing a crack or leak in a curved section of plumbing includes wetting/saturating a conduit repair liner with a bonding agent (e.g., epoxy). The conduit repair liner has straps with an end of each of the straps at an edge of the conduit repair liner and a distal end of each of straps has a section of hook and loop material. After saturating is complete, the conduit repair liner we with the bonding agent is wrapped around an inflatable carrier and then both are positioned within the curved section of the plumbing. Now, the inflatable carrier is inflated such that the conduit repair liner adheres evenly to the inside surfaces of the curved section of the plumbing. Next, the inflatable carrier is deflated and removed, leaving the conduit repair liner evenly adhered to the inside surfaces of the curved section of the plumbing.

Abstract: The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The curved plate extends along an arc of the outer surface of the curved plate that corresponds to a central angle of the pipe less than or equal to 180°. The curved plate includes a concave surface with a radius of curvature less than a radius of curvature of the outer surface of the pipe so as to bias the curved plate against the outer surface of the pipe when the curved plate is flexed to engage the pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil.

Abstract: A damaged portion of a pipeline buried in a trench is gradually lifted from the trench to expose the damaged portion above water and provide easy access to the damaged portion. Inflatable roller bags are placed under the pipeline adjacent the damaged portion; the roller bags are then inflated in a controlled manner using a computer-based control unit. A control manifold is connected to the control unit and each of the roller bags by a separate air conduit allowing controlled bag-inflation and bag-deflation process for each roller bag. Once the pipeline is repaired, the roller bags are deflated, lowering the pipeline back to its original position in the trench.

Abstract: Apparatus and method for overhauling a flanged coupling of joined conduit components including a gripping mechanism that straddles the flange-coupling and grips both flange-coupled components. The gripping mechanism is mounted on a lifting frame and bears the loadings upon the gripped tubular components during a moving operation. The apparatus also includes a collar sized to fit over the flange-coupling and located in spaced apart cradles supported on a base frame. The cradles are configured to receive the flange-coupled tubular components and position the collar for closure about the flange-coupling. The collar is provided with fasteners for closure of the collar about the flange-coupling, and a fastening mechanism operating the fasteners to secure the collar when closed about the flange-coupling.

Abstract: A device (110) and a method for locally repairing or reinforcing an elongate body (100), said device (110) being intended for winding one or a plurality of layers of pre-impregnated polymerizable strip around the elongate body (100), said device (110) comprising:—releasable means (112, 113) of attachment around the elongate body (100),—means for the rotational movement of support structure (125) around the means (112, 113) of attachment,—means for the longitudinal movement of a spool (135) of a pre-impregnated polymerizable strip relative to the support structure (125), said support (125) comprising means for limiting the movement of the spool to a predetermined path, said spool (135) being unwindable when it is subjected to a given tension,—means for bringing the spool (135) into rotational and translational movement around the elongate body (100), causing the pre-impregnated polymerizable strip to be wound around said body.

Abstract: A trench plow blade for removing cable below ground which includes a plow member having upper and a lower end and a plow wedge disposed at the lower end, the trench plow blade receiving air or water for loosening the ground above the cable or reciprocally moving the plow member relative to the plow wedge. Apparatus for the removal of cable buried in the ground and a method relating to removal of buried cable with a trenching plow blade is disclosed.

Abstract: The invention relates to a device (1) for renovating a pipe, the latter being provided with at least one opening arranged in the wall of the pipe, said device (1) having a base unit (2) that can be introduced into the pipe, a clearing unit (3) that is movable relative to the base unit (2), and an electronic sensor arrangement for detecting the instantaneous position of the clearing unit (3) relative to the base unit (2). To make available a novel device (1) for renovating a pipe provided with at least one opening arranged in the wall of the pipe, which device permits reliable and inexpensive repair of the pipe, the invention proposes that at least one electronic inclination sensor is arranged on the base unit (2).

Abstract: This is a photoconductor and dispenser assembly and system. The photoconductor is in a tubular form so as to accept a tubular formed dispenser within its hollow portion. The dispenser will coat within this hollow portion a uniform coating of an acoustical dampening material. This material will dull any sound produced by the photoconductive marking system. The assembly is the tube having in its hollow portion this dispenser. The dispenser fits tightly but movably within the hollow portion.

Abstract: A containment apparatus can be used to contain fluids leaking through a tubular wall of the pipe from an interior of the pipe to an environment surrounding the pipe. The containment apparatus can include a fluid container that can be positioned on an exterior surface of the pipe. The containment apparatus includes a seal for sealingly engaging the diameter of the pipe. In embodiments, the seal can be inflated with a pressure media to form a tighter seal between the containment apparatus and the pipe. For subsea pipeline applications, the containment apparatus can include a riser extending to the surface of the sea, from which the leaking fluid can be collected. In embodiments, the containment apparatus can include a valve that can selectively permit leaking fluid to flow toward a collection receptacle.

Abstract: To clean the inside of a pipe length a swabbing machine is provided at a first end of the pipe length, the swabbing machine includes a pneumatic motor and is propelled along the inside of the pipe length in a first direction away from the first end of the pipe length by the pneumatic motor. A swabbing machine and a swabbing machine system are also disclosed.

Abstract: The present invention provides an apparatus and method for recovering the core (108) of a subterranean sheathed electrical cable (106), while minimising the impact on the surrounding environment. The apparatus comprises a ram (102) operable to exert a pushing force on the core of a length of the cable, a plurality of linkages, each linkage being configured to be insertable into the cable along its length under the action of the ram to displace the core relative to an outer sheath of the cable, and a puller operable (104) to exert a pulling force on the core to thereby facilitate removal of the displaced core from the outer sheath by action of the pushing/pulling forces. The apparatus and method are found to be particularly suited to the recovery of high-tension copper core cables, while enabling any hydrocarbon (e.g. oil) impregnated inner sheathing to be controllably disposed of without hazard to the environment.

Abstract: Provided is a restoration pipe pulling-in method which can easily determine whether pilling-in of a restoration pipe is possible wherein the restoration pipe has a diameter as much as large relative to a deteriorated drainage channel, and which can pulling a restoration pipe into a sewer pipe wherein the gap between the restoration pipe and the sewer pipe is shorter.

Abstract: Apparatus for lifting and supporting pipelines through which is flowable fuel, gas or hazardous industrial liquids, for maintenance and restoration purposes, which comprises a hybrid sling for supporting a pipeline segment when being raised, where the sling comprises a flexible belt portion contacting an underside of the pipeline segment and a chain portion vertically extending from each end of the belt portions to an element through which a lifting force is transmittable. The sling is assured of being sufficiently structurally strong and dimensionally stable to ensure that the difference in height of any two points of the segment when being raised is not so great as to create a danger to the integrity of the pipeline.

Abstract: A method of joining two portions of an underwater pipeline laid on the bed of a body of water to conduct fluid and/or gas, the method including: joining a telescopic sleeve, having a first coupling head, to a first end of a first pipeline portion above the body of water; laying the first end, the telescopic sleeve, and the first coupling head 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; laying the second end and the second coupling head on the bed of the body of water, close to the first coupling head; roughly aligning the first and second coupling head in the body of water; and clamping the first and second coupling head to each other in the body of water.

Abstract: A packer apparatus is configured to be arranged within and arrest a failure of a submerged pipeline. In one example, the packer apparatus includes first and second mandrels coupled in selectively axial moveable relation to one another, and an elastomeric expansion boot circumferentially disposed around a portion of the second mandrel. The first mandrel is responsive to fluid flow in the pipeline to move axially toward the second mandrel from a first position to a second position. In the second position, the expansion boot is compressed axially between the first and second mandrels and expanded radially into engagement with an inner surface of the pipeline.

Abstract: A packer apparatus includes an actuator disk and a seal disk in axial moveable relation with a mandrel, and a brake pivotally connected to the mandrel. The actuator disk includes a tapered outer surface. The seal disk is arranged between the actuator disk and the mandrel and includes a rim angled toward the actuator disk. The actuator disk is configured to be actuated by fluid pressure within the pipeline to move axially toward the mandrel from a first position to a second position. In the second position, the tapered outer surface of the actuator disk deflects the rim of the seal disk toward the mandrel to cause the seal disk to radially expand and engage an inner surface of the pipeline. Additionally, in the second position, the brake pivots relative to the mandrel and moves radially outward into engagement with the inner surface of the pipeline.

Abstract: An assembly for splicing and repairing an umbilical is provided having two terminal bend restrictors and two strain terminators, here each terminal bend restrictor has at least two interconnected modules, a connecting end, and a free end. The strain terminators have a strain receiving end and a strain providing end, with each of the strain receiving ends is connected to one of the connecting ends of the terminal bend restrictors. The assembly further has an intermediate bend restrictor having at least two interconnected modules and two connecting ends. The two strain terminators are connected at their strain providing ends to separate connecting ends of the intermediate bend restrictor, and the intermediate bend restrictor is dimensioned to withstand tensile strain from the connected strain terminators.

Abstract: A gasket insertion apparatus and method for inserting a gasket between the adjoining faces of a flange assembly are provided. The gasket insertion apparatus includes a frame, a member and a wire. The frame has a first end, a second end and an inner gripping surface. The first and second ends have guides. The member has a first end portion attached to the frame and a second portion extending away from the frame. The wire is anchored to at least one of the frame and the member such that it movably adjusts within the guides and secures the gasket within the inner gripping surface.

Abstract: Access and connection for a buried pipeline, wherein a hole is dug to a buried pipeline, a riser pipe is disposed within the hole, and one or more powered tools are lowered into the hole and activated such that work is performed on the pipeline without the need for anyone to be lowered into the hole. Because no one needs to be physically present down in the hole at the pipeline, the hole, and thus the surface disturbance can be much smaller than conventional pipeline work methods.

Abstract: A portable winch and method of use is shown. One advantage of winches shown includes an ability to lower a boom or boom sections into limited access exit pit for winching operations such as pipe bursting. Sectional boom designs shown provide the ability to easily raise and lower a boom large distances without the need for a single long boom. Selected winch designs shown include flexible inserts between the boom and the winch frame that help resist damage from unforeseen shifting of the device during operation. Designs and methods shown also include multiple pulleys on a boom end unit. Fasteners are shown that reduce build up of debris.

Abstract: The invention relates to a tool for longitudinally subdividing buried sewer pipes having an asymmetric, generally oval cross section, made substantially of a support shoe opposing a cutting blade acting in the direction of the pipe axis. The device also has two side cutting blades and is moved through the old pipe by means of a rod and a cylindrical calibration mandrel.

Abstract: A system and method for raising utility boxes includes locating a hidden utility box that is paved over or otherwise covered and not visible from above the ground. A rough locating technique may be used to get within the general vicinity of the box, followed by a more finely tuned locating technique to pinpoint the exact location of the box. With the location accurately known, a system including a core drill is used to cut through the material covering the box, without the need to excavate large areas of roadway or other ground cover. Once having access the utility box, it is extended, raised or replaced such that it is visible and accessible from the then current ground level.

Abstract: Methods and systems allow for performing maintenance on a deployed portion of a seismic streamer. A method for raising and lowering a portion of a spread associated with a seismic streamer which is towed by a mother ship, the method including: configuring a device to be movable, wherein the device includes at least two buoyant structures connected by a platform, further wherein the platform includes a winch, a motor and controls associated with the winch and the motor; deploying the device from the mother ship overtop of the portion of the spread to be raised; lowering a line from the device via a winch to a position proximate the portion of the spread to be raised; connecting the line to the portion of the spread; and raising the line and the portion of the spread via the winch to a surface of a body of water.

Abstract: A method and apparatus for rehabilitating an underground water conduit having at least one service entrance including a plug having a light emitter which is responsive to the presence of an electromagnetic field, wherein the at least one service entrance is plugged with the plug and a semi-transparent membrane lining the internal surface of the underground water conduit thereby covering the plug. A drilling head is disposed on a body moveable within the underground water conduit, the drill head having a drill bit and a coil inductor concentric with the drill bit. The coil inductor is adapted to generate an electromagnetic field near the drilling head, wherein the light emitter of the plug is adapted to be turned on by the electromagnetic field emitted by the coil inductor to allow visual alignment of the drill bit with the light emitted by the light emitter through the semi-transparent membrane.

Abstract: A pipe retriever for retrieving an unsecured pipe has a head connectable to a drilling pipe and defines a longitudinal axis. The longitudinal axis of the head is arranged substantially parallel to a longitudinal axis of the drilling pipe when connected. A tail extends from the head at an angle with respect to the longitudinal axis. The tail defines a hook shape having inward and outward surfaces. The inward hook surface defines a pipe recess sized to receive the unsecured pipe.

Abstract: A male and female set of hydraulic coupler cartridges mate such that one part of the coupler can be left in place, e.g. the female coupler, with the other portion of the coupler, e.g. the male coupler, being removably connected or disconnected. Valves within each cartridge comprise an actuator and springs within each cartridge urge the valves into a closed, sealing position. When the cartridges mate, spring and/or fluid pressure within the cartridges operates to either allow or disallow fluid flow. Once the cartridges are mated, their respective springs are partially compressed and movement of one of the valves operates to compress one spring and correspondingly decompress the other. The cartridges can therefore be mated and unmated, e.g. subsea, while fluid flow is prevented through them during the mating and unmating.

Abstract: Method for dewatering, pressure testing, hydrotreating, suppressing methane hydrate formation and suppressing solution freezing point in pipeline operations have been disclosed, where the solution used in the operations includes an effective amount of a metal formate salt. The metal formate salt solutions have a low viscosity, have a high density, have a low metals corrosivity, are non-volatile, have a low solubility in hydrocarbons, are readily biodegradable, have a low toxicity, are non-hazardous, have a low environmental impact, have a freezing point depression property forming water/formate eutectic point mixtures, and have a water-structuring and water activity modification property.

Abstract: The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The curved plate extends along an arc of the outer surface of the curved plate that corresponds to a central angle of the pipe less than or equal to 180°. The curved plate includes a concave surface with a radius of curvature less than a radius of curvature of the outer surface of the pipe so as to bias the curved plate against the outer surface of the pipe when the curved plate is flexed to engage the pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil.

Abstract: Apparatus and methods are described for subsea pipeline servicing, including line-pack testing, physical integrity testing, recovery of damaged sections of pipelines, and product removal from subsea structures. In one embodiment of the invention, a subsea pipeline service skid is provided including at least one sample collection bladder affixed to the skid and in fluid communication with a skid mounted pump dimensioned to pull a sample from the subsea pipeline. In another embodiment, a product removal bladder is provided for removal of the hydrocarbons from a subsea structure. In one embodiment, a method of wet-buckle remediation is provided using a subsea pump to unweight the pipeline.

Abstract: One invention relates to a liner (5) for repairing the connection between a main pipeline (100) and a lateral pipe (200). The liner (5) includes a main pipeline lining part (12) that in use forms a tubular portion for lining an inner circumferential portion of the main pipeline (100) and a lateral pipe lining part (14) that in use forms a tubular portion for lining an inner circumferential portion of the lateral pipe (200). Located between the lateral pipe lining part (12) and the main pipe lining part (14) there is a transition zone (16) that in use is arranged to line a junction zone (150) between the main pipeline (100) and the lateral pipe (200). The transition zone (16) of the liner (5) is formed integrally with the main pipeline lining part (12) and the lateral pipe lining part (14).

Abstract: A trench plow blade for removing cable below ground which includes a plow member having upper and a lower end and a plow wedge disposed at the lower end, the trench plow blade receiving air or water for loosening the ground above the cable or reciprocally moving the plow member relative to the plow wedge. Apparatus for the removal of cable buried in the ground and a method relating to removal of buried cable with a trenching plow blade is disclosed.

Abstract: Device (1) for applying a push or pull action on tubes (100) to be laid in the ground for overcoming waterways or other types of obstacle, includes two push blocks (2, 2?), disposed parallel to and mirroring each other, and a vice (8), which couples the device (1) to a tube (100) to be pushed/pulled. Each push block (2, 2?) including, in turn, a base (5, 5?), a main cylinder (3, 3?), a movable arm (6, 6?), one positioning cylinder (4, 4?) and vertical regulation cylinder (7, 7?). The arms (6, 6?) conferring a variable geometry to device (1) which is able to assume corresponding positions and positive and negative angles. The device finds application in the field of ancillary equipment for horizontal controlled drilling and horizontal directional drilling (TOC and HDD), i.e. suitable technologies for installing new pipelines without opencast digging.

Abstract: A cable retention and release mechanism includes a cable gripping device including a cable passage. A cable extends through the cable passage. A cable gripping device collar is movably coupled around the cable gripping device. An outer cable gripping device surface is seated against a cable gripping device receiving inner surface preventing movement of the cable gripping device relative to the cable gripping device collar. The cable gripping device receiving inner surface clamps the cable gripping device on the cable and prevents sliding movement of the cable. A jack is movably coupled with the cable gripping device collar. In a first engaged position the jack is engaged against the cable gripping device proximal end. In a second engaged position the jack unseats the outer cable gripping device surface from the cable gripping device receiving inner surface and releases the clamping of the cable.

Abstract: System for pipeline rehabilitation. The system includes repairing a leak in a pipe using a pair of substantially semi-cylindrical parts connected through a compliant joint. When the parts are compressed, the semi-cylindrical parts form a cylinder whose outside diameter is less than the inside diameter of a pipe with a defect thereby allowing the cylinder to be inserted into the pipe at a location of a leak. Once in place, the parts engage the inside surface of the pipe when the compression is released thereby to seal the leak.

Abstract: Apparatus and methods are described for subsea pipeline servicing, including dewatering and chemical containment. A subsea pipeline service skid has a containment bladder affixed to the skid and in fluid communication with a skid mounted pump dimensioned to pump fluid from the subsea pipeline. A sensor system at the suction side of the pump detects the presence of seawater, water, chemical agent, or gas so the pump can be operated accordingly. The chemical agent used during dewatering operations of the pipeline is selectively pumped to the containment bladder subsea so the subsea vehicle can independently take the chemical agent to the surface.

Abstract: A method for laying a pipe includes predisposing first and second releasable gripping devices for firmly gripping or releasing the pipe. The gripping devices are located along the longitudinal direction of the pipe. The gripping devices when activated grip and move the pipe so that only a predetermined longitudinal pipe section is received in the laying site. The gripping devices are rearranged and activated, instant by instant, so that the pipe is at all times solidly gripped by at least one gripping device. The above step is repeated until multiple longitudinal sections are housed in the laying site. A machine for laying pipe has gripping devices independently activatable for firmly gripping or releasing the pipe and also for moving the first and/or second gripping devices a predetermined number of times while gripping the pipe, for moving multiple longitudinal pipe sections into the laying site.

Abstract: A hose splicing system comprises a first clamping tool and a hose fitting adapter. The first clamping tool includes a first clamp member and a second clamp member. An inner surface of at least one of the first clamp member and the second clamp member includes a recess configured to receive an end of a hose. In addition, the first clamping tool includes a hinge coupled to the second clamp member. Further, the first clamping tool includes a lock member pivotally coupled to the first clamp member. The hose fitting adapter has a central axis, a first end configured to be inserted into the end of the hose, a second end configured to releasably connect to a rigid hose end connector, and a through bore extending axially from the first end to the second end.

Abstract: The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The curved plate extends along an arc of the outer surface of the curved plate that corresponds to a central angle of the pipe less than or equal to 180°. The curved plate includes a concave surface with a radius of curvature less than a radius of curvature of the outer surface of the pipe so as to bias the curved plate against the outer surface of the pipe when the curved plate is flexed to engage the pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil.

Abstract: An apparatus (10) for launching one or more pigs (5) for cleaning of production flow lines, or tubing, on the sea bed is shown. The apparatus includes a lifting frame (1) retaining a charging pipe (3) which is able to carry a train of pigs (51-510) resting stand-by in the charging pipe (3), a plurality of valves (V1-V4) which on the one side is in fluid communication with the charging pipe (3), and on the other side is in fluid communication with a high pressure drive fluid different from the production flow, a connecting means (2) for connecting of the apparatus (10) to a closable pipe sub leading to the production flow line to be pigged, and an actuatable piston (4) which is able to displace the train of pigs within the charging pipe (3).

Abstract: An assembly for splicing and repairing an umbilical is provided having two terminal bend restrictors and two strain terminators, here each terminal bend restrictor has at least two interconnected modules, a connecting end, and a free end. The strain terminators have a strain receiving end and a strain providing end, with each of the strain receiving ends is connected to one of the connecting ends of the terminal bend restrictors. The assembly further has an intermediate bend restrictor having at least two interconnected modules and two connecting ends. The two strain terminators are connected at their strain providing ends to separate connecting ends of the intermediate bend restrictor, and the intermediate bend restrictor is dimensioned to withstand tensile strain from the connected strain terminators.

Abstract: The invention relates to an assembly for centring a first elongate tubular element and a second elongate tubular element, such as an underwater pile accommodated within a noise mitigation screen, at a common central longitudinal axis along which axis both the first and second element extend, and wherein the centre system is provided with first coupling element for fixedly coupling the centre system with one of the first and second tubular elements, and second coupling element for engaging the other tubular element for centring the other tubular element at the central axis.