A device for use in removing a conveyance member from a material includes a displacement element (12, 1012) and a self-propelling driving element. The displacement element (12, 1012) is for being placed at least partly around a conveyance member (16) and for displacing material as the displacement element (12, 1012) is advanced along a conveyance member (16). The driving element is coupled to and movable with the displacement element (12, 1012) to advance the displacement element along a conveyance member (16).

Method for installing a cable comprising: a first phase with at least the steps of: introducing the cable into a first duct, attaching at least a first pig to the cable, introducing a liquid at first pressure and first flow into the first duct, stopping the cable when, or after, its foremost end has reached an exit of the first duct, a second phase with at least the steps of: attaching at least a second pig to the cable, introducing again a liquid at first pressure and first flow into the first duct, introducing the liquid at second pressure and second flow, compensating, at a location between the first duct and second duct, for a difference in flow or volume of liquid.

An electrical wire pulling device is for pulling wire through a conduit and includes a T-shaped hollow body including a side inlet transversely intersecting a path between a top inlet and a bottom outlet, and a constrictor adjacent the side inlet. A pulling line source, including a supply of pulling line, is positioned adjacent the top inlet and configured to supply the pulling line into the top inlet and out the bottom outlet. A constrictor has a tapered section tapering towards the bottom inlet. The bottom outlet is positioned adjacent the first end of the conduit. The side inlet is coupled to a fluid source to supply a fluid into the hollow body to be pushed downward towards the bottom outlet and create a pressure differential that draws the pulling line towards the bottom outlet and into the conduit.

An integrated transmission line installation system includes a transmission line conveying system that operates to install a transmission line within a conduit by advancing the transmission line through the conduit. The conduit includes at least a first segment and a second segment. The segments are evaluated to determine a full route including the routes of the first and second segments, and an installation plan is generated based at least in part on the full route. The transmission line conveying system includes two or more transmission line conveying apparatuses, a first that controls the advancement of the transmission line through the first segment, and a second that controls the advancement of the transmission line through the second segment. The transmission line conveying system controls and synchronizes the operation of the transmission line conveying apparatuses according to the installation plan so that the transmission line can be continuously installed through the full length of the conduit in a single pass.

Method for installing an elongated element, in a submarine duct, the submarine duct having an entry port and an exit port located in outer liquid (OL) at a second depth,

the method comprising the steps of: introducing the elongated element into the entry port, introducing propelling liquid (PL) into the entry port,
characterized in that the method comprises a step of sucking propelling liquid (PL) out of the exit port of the duct with an immerged suction pump being operated at a predetermined suction pressure drop (ΔP.sub.pump) of propelling liquid (PL) so that the predetermined suction pressure drop (ΔP.sub.pump) applied to propelling liquid (PL) is smaller than a hydrostatic pressure (P.sub.hydro) of the outer liquid (OL) at the second depth.

A cable attachment device for sealing and retaining a communications cable entering a telecommunications closure through an opening defined in the closure is disclosed, the device comprising: a housing having a passage through which the communications cable extends, the housing having a first portion and a second portion; wherein the first portion of the housing is configured to receive a protective tube of the telecommunications cable; wherein the second portion of the housing is configured to engage with the closure; a first seal configured to form a seal between the device and the closure; a second seal configured to form a seal between the interior of the device and the protective tube; a third seal configured to seal between the communications cable and the interior of the device; a first retaining arrangement configured to couple the device to the closure; a second retaining arrangement configured to hold the tube relative to the device; and a third retaining arrangement configured to fix the telecommunications cable relative to the device.

A method and reel design enables blowing cable from a reel into a mid-span access point within a cable conduit. The cable reel includes a central hub, a first flange located proximate one edge of the central hub, a second flange located proximate an opposite, second edge of the hub, and a third flange located between the first and second flanges. A continuous communications cable has first and second portions spooled on first and second reel sections. The technician inserts a first end of the communications cable into a mid-span opening in the conduit, so that the first end of the communications cable is directed toward the first end of the conduit. The first portion of cable is blown off of the first reel section. The technician inserts a second end of the communications cable into the opening in the conduit so that the second end of the communications cable is directed toward the second end of the conduit. The second portion of cable is blown off of the second reel section. Then, a mid-portion of the communications cable is separated from the third flange of the cable reel and resides proximate the opening in the conduit.

An apparatus and methods for pushing conductors into conduit and other structures are disclosed. The apparatus (“pusher”) can include rollers to apply a pushing force to one or more conductors or bundles of conductors. One or more rollers can be coupled to a drive mechanism. The pusher is configured to pull conductors or bundles of conductors off of one or more spools, and push the conductors or bundles of conductors without de-bundling or sorting the conductors. The conductors can be fed through the pusher in any format including side-by-side, vertical on top of one another, twisted together, or other formats. The pusher can include a guiding device that is configured to route the conductors from the pusher to a conduit through which the conductors are being pushed or pulled.

Provided is a cable hang-off arrangement configured for mounting at the level of an elevated platform of an offshore facility and includes a pipe configured to accommodate a number of protective tubes, wherein a protective tube is configured to accommodate a transmission cable of the offshore facility; a tube end flange arranged around an end portion of each protective tube; and a hang-off terminator configured for mounting at an end of the pipe, which hang-off terminator includes an end-plate with a number of apertures for the transmission cables, and a flange connection interface for connecting to the tube end flanges. An offshore facility, and a method of securing a transmission cable arrangement at the level of an elevated platform of an offshore facility are also provided.

Autonomous fluid compressor for supplying compressed fluid to a cable laying device, the fluid compressor comprising a fluid compressing unit arranged to compress fluid and comprising an exhaust valve, an electric motor, for driving the fluid compressing unit, a rechargeable power unit, to supply electric power to the electric motor, a fluid supply port connected to the exhaust valve, characterized in that the fluid compressor including an input unit, for receiving a fluid demand signal indicating a fluid demand from the cable laying device, and a control unit, arranged to control the motor based on the fluid demand signal.