A configurable subsea wet-mateable connector includes a receptacle connector body and a plug connector body. The subsea receptacle connector unit includes at least two receptacle inserts chosen from at least one of a power connector unit, a data connector unit, an optical fibre connector unit, a pneumatic connector unit or a fluid connector unit. The subsea plug connector unit includes at least two plug inserts having the same two of a power connector unit, a data connector unit, an optical fibre connector unit, a pneumatic connector unit or a fluid connector unit.

An annular seal member comprising a seal body comprising a locating portion locatable against a wall element of an offshore structure, an inner surface, an outer surface and a lip portion that defines an open mouth of the seal member for receiving an elongate element therethrough; wherein the seal body is locatable against the wall element such that when a static pressure acting on the outer surface of the seal body exceeds a static pressure acting on the inner surface of the seal body a net positive pressure is exerted on the outer surface which at least partly deforms inwardly to provide a portion of the seal body for sealing against an outer surface of the elongate element. An offshore structure.

An annular seal member comprising a seal body comprising a locating portion locatable against a wall element of an offshore structure, an inner surface, an outer surface and a lip portion that defines an open mouth of the seal member for receiving an elongate element therethrough; wherein the seal body is locatable against the wall element such that when a static pressure acting on the outer surface of the seal body exceeds a static pressure acting on the inner surface of the seal body a net positive pressure is exerted on the outer surface which at least partly deforms inwardly to provide a portion of the seal body for sealing against an outer surface of the elongate element. An offshore structure.

A method for analyzing survivability of an infrastructure link includes determining an optimal path arrangement of the infrastructure link between two geographic locations; and determining a risk index associated with the determined optimal path arrangement based on one or more quantified cost factors and one or more quantified risk factors associated with the determined optimal path arrangement. The risk index represents a survivability of the infrastructure link.

Provided is an interface for connecting a cable arranged in a shell to a receiving structure, the interface including: a connector including a connection area for fixing the connector to a cable support of the receiving structure and a transmission area for receiving the cable and the shell, a lower seal, an upper seal, a chamber element configured to coat the cable between the lower seal and the upper seal. Also provided is a hang-off system and a method for connecting a cable arranged in a shell to a receiving structure.

A protection device for preventing damage to an elongate flexible member passing through an aperture including a body portion adapted to be inserted into the aperture in a first direction and having an internal passageway for allowing movement of an elongate flexible member therethrough, and at least one latching element pivotally mounted on the body portion. The protection device can be used for protecting an elongate flexible member passing through an aperture in a support pillar of an offshore turbine generator. A method of removing the protection device from an aperture is also disclosed.

A cable hang-off device for holding a cable for a wind turbine includes a main body, which includes a first flange, an opposed second flange and a through passage to allow insertion of a cable, at least one temporary clamp, which is located in the through passage and which is configured to temporarily hold the cable in place within the main body, a clamping plate, which is configured to clamp armour wires of the cable against the second flange to hold the cable in place within the main body, a sealing sleeve, which includes a cylindrical wall that defines a sealing passage for one or more conductors of the cable, and at least one solid sealing element, which is configured to be installed within the sealing passage in order to at least partially surround the one or more cable conductors to seal the sealing passage.

A plough for burying a cable has a base frame, an upper frame member and a ploughshare support; a topside of the ploughshare support features a cable trough; and a cable guiding path extends from a front end to a rear end of the plough. The cable guiding path is arranged between the base frame and the upper frame member and along the cable trough. The upper frame member is movably connected relative to the base frame, such that the upper frame member may move between a first position. The upper frame member is arranged above the cable guiding path, and a second position wherein the upper frame member is displaced away from the cable guiding path. The whole extent of the cable guiding path is accessible from above when the upper frame member is in the second position, such that a cable may be lowered onto the cable guiding path.

A plough for burying a cable has a base frame, an upper frame member and a ploughshare support; a topside of the ploughshare support features a cable trough; and a cable guiding path extends from a front end to a rear end of the plough. The cable guiding path is arranged between the base frame and the upper frame member and along the cable trough. The upper frame member is movably connected relative to the base frame, such that the upper frame member may move between a first position. The upper frame member is arranged above the cable guiding path, and a second position wherein the upper frame member is displaced away from the cable guiding path. The whole extent of the cable guiding path is accessible from above when the upper frame member is in the second position, such that a cable may be lowered onto the cable guiding path.

An offshore power distribution system includes first cables each having a first dry mate connection at a first end and each connecting to an offshore power generator unit at a second end, a subsea junction box at a sea floor, a second cable extending from the junction box to a subsea transformer station at the sea floor and connecting with the transformer station, and a third cable extending from the transformer station to an onshore receiver. Each first dry mate connection terminates in the junction box. The second cable has a second dry mate connection at an end thereof. The second dry mate connection terminates inside the junction box and is operatively connected to each first dry mate connection. The power distribution system is configured to transmit electric power from the power generator unit, via the first cables, the second cable, and the third cable, to the receiver.