A drilling riser cable management system includes a plurality of clamping mechanisms pre-installed on riser joints and a robotic arm. The robotic arm has a cable handling mechanism that is configured to securely install the cable on each clamping mechanism without relying on human manipulation of the cable during installation.

A retainer system, device and method are provided for retaining a severed pipe string such as a landing string suspended from a rig of a floating vessel or platform during a failure of a primary or secondary heave compensation system and prevent the severed pipe string from flying over the rig floor. The retainer system includes a retainer device including a housing mounted to a platform or vessel, the housing defining a through bore for receiving a pipe string suspended from the platform or vessel. A safety sleeve extends through the housing. A stop arrangement is mountable on the pipe string, to permit engagement between the safety sleeve and the stop arrangement in order to limit relative movement between the housing and the pipe string in order to retain a severed pipe string in an emergency situation.

A device includes a first cavity sized to hold a first cassette of tubulars, a second cavity sized to hold a second cassette of tubulars, and a first lifting mechanism disposed in the first cavity. The first lifting mechanism when in operation lifts the first cassette of tubulars from a horizontal orientation to a vertical orientation with respect to a drill floor. The device also includes a second lifting mechanism disposed in the second cavity, wherein the second lifting mechanism when in operation lifts the second cassette of tubulars from the horizontal orientation to the vertical orientation and a drive mechanism that when in operation rotates the device by a predetermined amount to dispose the first cavity in a region directly proximate to the drill floor.

A telescoping connector joint for making an electrical connection includes a first tubular member with a first internal bore. A second tubular member is located within the first internal bore defining a joint annular space between an outer diameter surface of the second tubular member and an inner diameter surface of the internal bore. An annular seal assembly seals the joint annular space. A female wet connect member is located on one of the first tubular member and the second tubular member, and a male wet connect member is located on the other. The telescoping connector joint has a connected configuration where the female wet connect member is in electrical engagement with the male wet connect member and has an unconnected configuration where the female wet connect member is free of electrical engagement with the male wet connect member.

A motion compensating system is usable on a vessel during well intervention operations through a riser. The system includes a first floor; a second floor; a plurality of hydraulic cylinders connecting the first floor to the second floor; a bearing retainer attachable to the second floor; a spherical bearing provided between the second floor and the bearing retainer, wherein the spherical bearing includes a central opening therethrough for the riser to allow angular movement of the riser relative to the first and second floors; an insert bearing sleeve at least partially located inside the central opening of the spherical bearing; and a slip bowl attachable to the insert bearing sleeve. Each of the first floor, the second floor, the bearing retainer, the insert bearing sleeve and the slip bowl have an opening therethrough for the riser, and each opening is aligned with the central opening of the spherical bearing.

A telescoping connector joint for making an electrical connection includes a first tubular member with a first internal bore. A second tubular member is located within the first internal bore defining a joint annular space between an outer diameter surface of the second tubular member and an inner diameter surface of the internal bore. An annular seal assembly seals the joint annular space. A female wet connect member is located on one of the first tubular member and the second tubular member, and a male wet connect member is located on the other. The telescoping connector joint has a connected configuration where the female wet connect member is in electrical engagement with the male wet connect member and has an unconnected configuration where the female wet connect member is free of electrical engagement with the male wet connect member.

A riser data logging system can be installed on the riser top to provide real time information of the riser, instead of or in addition to relying on sensors installed on a tensioner. The riser recoil detection system can thus be made independent of any motion of the vessel. This logging system can feedback the riser top acceleration, velocity, position, and the wire-line tensions into a controller. By comparing the acceleration difference between the riser top and the vessel body, the controller can provide more reliable and faster detection of events occurring on a vessel, potentially detecting the condition within one second. If the acceleration exceeds a certain limit, the electrical tensioners are able to reduce the wire-line tension nearly instantaneously, providing a much more effective anti-recoil control that conventional hydro-pneumatic tensioners.

The publication relates to a depth compensated actuator, for a transportable inline depth compensated heave com-pensator for subsea lifting operations. The actuator comprises a cylinder shaped body and a piston with a piston rod, the piston rod being intended for exposure to external water pressure, a first and second connection means associated with the actuator. Further, the actuator comprises a depth compensator comprising a cylinder, a piston and a piston rod, the end of which being exposed to surrounding water; and conduit means between at least one volume in the actuator and one volume in the depth compensator. The pistons and piston rods are shaped as any of: hollow piston rod, ring shaped piston, ring piston rod. The depth compensated actuator solves the problem if improving depth compensation performance regarding size, weight, required fluid consumption, internal/inherent friction and adaptability. Further, use of a depth compensated actuator is claimed.

A motion compensating system and method for use on a vessel during well intervention operations through a riser. The system can comprise an upper floor having an opening therethrough, a lower base having an opening therethrough positioned below the upper floor, a first plurality of cylinders extending between the upper floor and lower base, and a riser tensioner. Each cylinder of the plurality of cylinders can be pivotally connected to the upper floor and lower base for moving the upper floor with respect to the lower base. The riser tensioner can have an upper portion, lower portion, and central cavity extending longitudinally through the upper and lower portions, wherein the upper portion can be adapted for connection with a riser or an intermediate tubular member that is connectable to the riser. The lower portion can be connected to the lower base within or about the opening of the lower base.

Aspects of the present disclosure relates to disruptive coupling systems and methods, and apparatus thereof, for subsea systems. The subsea systems may be subsea oil and gas systems. In one implementation, a subsea system includes a subsea component disposed in seawater, and a disruptive coupling device coupled to the subsea structure and/or surrounding fluid.