Abstract: In some examples, an apparatus for coupling and decoupling a connector head to and from an end of a wired drill pipe held by an elevator includes an actuator configured to move the connector head between a coupled position and a decoupled position. The actuator is configured to move the connector head in parallel with the longitudinal axis of the wired drill pipe before moving it away from said wired drill pipe when decoupling the connector head from the wired drill pipe, and to move the connector head into the longitudinal axis of the wired drill pipe before moving it in parallel with said longitudinal axis when coupling the connector head to the wired drill pipe.

Abstract: A hoisting system for hoisting a load includes: i) a main winch system having a main rope with an end connector mounted to an end of the main rope, ii) an auxiliary winch system having an auxiliary rope having at least one rope connector of which at least one is a splitable rope connector, the auxiliary rope comprising a first section and a second section connected to the first section via the splitable rope connector, wherein the splitable rope connector comprises at least two connector parts that are releasably connected with each other for allowing quick disconnection and reconnection between the second section and the first section, wherein the connector parts (are configured for releasably connecting with the end connector of the main rope, and iii) a hang-off point placed and configured for at least temporarily holding a respective rope connector of the auxiliary rope for transferring the load to the hang-off point. The system may include two auxiliary winch systems.

Abstract: An end effector for gripping and spinning a pipe includes a head portion including a first connection interface for connecting the end effector to a robotic arm. In addition, the end effector includes a pair of jaws rotatably connected to the head portion between an open position and a gripping position. Further, the end effector includes a spinner for spinning a pipe held by the pair of jaws in the gripping position around a spinning axis generally corresponding to a longitudinal centre axis of the pipe. The first connection interface has a normal which is substantially parallel to the spinning axis. There is also disclosed a robot including an end effector as well a robot assembly and a drilling installation including such as robot.

Abstract: Described is a tool and apparatus for positioning a blade for a wind turbine the wind turbine including a tower and a rotatable hub on the tower. The tool is mounted on a side of the tower so that the blade is supported on the tower in an initial configuration. The tool includes a first part arranged to be angularly movable relative to a second part for tilting the blade with respect to the tower to position the blade in a position that can allow the blade to be connected to the hub.

Abstract: A torque device for guiding a first torque device member relative to a second torque device member includes the first and second torque device members. Each of the torque device members has an operational axis of rotation and three clamp bodies spaced about the operational axis. The clamp bodies are movable between a retracted passive position and an extended active position. The torque device also includes a guide ring on one of the torque device members. The guide ring includes one or more guide ring sections. In addition, the torque device includes at least two guide elements on the other of the torque device members. Each guide element being movable with one of the clamp bodies of the respective torque device member.

Abstract: Disclosed is an electrolytic cell having an anode and a cathode, wherein the cathode comprises a surface layer which is repellent towards inorganic material. Such repellent layer may be employed to prevent formation of scale on an electrolytic cell. Also disclosed is an apparatus for cleaning seawater that employs such electrolytic cell, . and a system for injecting cleaned seawater into a hydrocarbon reservoir, wherein the system comprises tubing, an injection pump, and the seawater cleaning apparatus employing the disclosed electrolytic cell.

Abstract: Disclosed is an elevator for holding and end portion of a pipe in a drill tower. The elevator includes a hole from which, in operational use, an end portion of the pipe is suspended. The minimum diameter of the end portion of the pipe is selected larger than the minimum diameter of the hole, wherein sidewalls of the hole are shaped with a receiving surface for receiving correspondingly-shaped sidewalls of the end portion of the pipe. Similarly, sidewalls of the end portion of the pipe are shaped with an engagement surface for engagement with correspondingly-shaped sidewalls of the hole. Both the receiving surface and the engagement surface includes a first part and a second part neighbouring the first part, the first part defining a frustoconical shape having a first conicity, and the second part defining a shape having at least partially a second conicity lower than the first conicity.

Abstract: A hoisting system is for hoisting a vertically-suspended object. The hoisting system has a winch having a winch drum with a hoisting rope. A first part of the hoisting rope has a first diameter and a second part has a second diameter being larger than the first diameter. The first part is connected with a first end of the second part. The first part is an inner part on the winch drum when the winch drum is completely wound. The second part has a further end that is connectable to the object for hoisting the object. A ratio between the first diameter and the second diameter is such that the minimum breakable load of the first part differs less than a factor of four from the minimum breakable load of the second part, and preferably less than a factor of three. A corresponding method is disclosed.

Abstract: A method for drilling a borehole includes selecting a lower pressure limit and an upper pressure limit for a drilling fluid at a drilling location in the borehole. In addition, the method includes activating a pump to circulate the drilling fluid down a drill string and up an annulus disposed about the drill string. Further, the method includes operating the pump to maintain the drilling fluid at the drilling location at a pressure between the upper and the lower pressure limits. Still further, the method includes deactivating the pump to stop circulating the drilling fluid up the annulus. The method also includes sealing the drilling fluid in the annulus at a selected time after deactivating the pump and maintaining the pressure of the drilling fluid at the drilling location between the lower and the upper pressure limits.

Abstract: A rope connector connects prepared ends of two rope segments, wherein said prepared ends each include a rope eye. The rope connector includes at least two complementary parts, each being configured with a shaped recess for receiving at least part of said prepared end of a respective rope segment. The complementary parts are detachably mountable to each other to establish a firm connection there between. A rope extension system is disclosed to include such rope connector, and a hoisting system employs such rope extension system.

Abstract: Disclosed is a drilling system and a method for drilling a well. The drilling system includes a coilable drill string; a first reel for storing the coilable drill string; a drive means for driving the coilable drill string into the well from the first reel and out of the well to the first reel; and a deflection means for directing the coilable drill string between the first reel and into the well centre. The drilling system further includes a top drive. The coilable drill string is provided with: a first connection at a first end for connecting the coilable drill string to a bottom-hole-assembly and a second connection at a second end for connecting the coilable drill string to the top drive.

Abstract: A method of installing an offshore wind turbine includes the step of raising a full-length tower for the offshore wind turbine by moving it longitudinally from a container in a substructure, the substructure being a support structure for the wind turbine, wherein the substructure is arranged with a container configured for housing a tower for the wind turbine substantially in its entirety.

Abstract: There is described a hoisting system and method of lifting that make use of a particular fibre rope. The fibre rope includes a plurality of magnets that are embedded within the fibre rope and spaced apart along the rope with a known axial distance between the magnets. The system may include a fibre rope hoisting speed sensor, and a magnetic field sensor that can sense the presence of the magnetic field of the embedded magnets. Using the sensors, the hoisting speed of the rope may be determined by: measuring the time between the passing of consecutive magnets by using the magnetic field sensor; calculating the distance between consecutive magnets using the hoisting speed sensor and the measured time between the passing of the consecutive magnets; and comparing the calculated distance between the magnets with an original, predefined distance between the magnets.

Abstract: A hoisting system is for hoisting a vertically-suspended object. The hoisting system has a winch having a winch drum with a hoisting rope. A first part of the hoisting rope has a first diameter and a second part has a second diameter being larger than the first diameter. The first part is connected with a first end of the second part. The first part is an inner part on the winch drum when the winch drum is completely wound. The second part has a further end that is connectable to the object for hoisting the object. A ratio between the first diameter and the second diameter is such that the minimum breakable load of the first part differs less than a factor of four from the minimum breakable load of the second part, and preferably less than a factor of three. A corresponding method is disclosed.

Abstract: Disclosed is a system and method for regenerating and distributing energy, such as employed on a vessel or floating offshore installation, the system including a first power distribution system, a second power distribution system electrically isolated from the first power distribution system, and a flywheel mechanically connected to both the first and second power distribution systems. Each of the first and second power distribution systems may include a motor/generator mechanically connected to the flywheel and a drive module electrically connected to its respective motor/generator. The flywheel drive modules may be connected to a common flywheel control module that includes a control algorithm for operating the system.

Abstract: An electrohydraulic device includes an extender which is arranged to be actuated by hydraulic fluid, and a rotor of an electric motor, the rotor being arranged to rotate about a part of the extender. The rotor may have an annular body which encircles or surrounds part of the extender. There is also described a related method of use and a marine vessel or platform where the device may be applied.

Abstract: Apparatus and methods for use in water processing include housing sections that house in their interiors water treating membranes, the respective interiors being separate from one another. A distributor chamber for containing a flow of water to be treated conveys water to be treated from a feed inlet and distributes the water to be treated into the interiors of the housing sections. A collector chamber for collecting treated water from the interiors of the housing sections is provided to communicate a merged flow of the treated water to an extraction outlet.

Abstract: Disclosed is an electrode assembly and a method for inactivating organic material in water, and a water treatment system that includes the electrode assembly. The electrode assembly includes a longitudinal axis and at least an anode and a cathode, each having a first electrode member that includes a perforated portion for water to pass through and a second electrode member arranged at an angle with respect to the first electrode member, and also having a perforated portion for water to pass through. The first and second electrode members of the anode correspond to and are arranged in close proximity to the first and second electrode members of the cathode. The first and second electrode members are inclined with respect to the assembly's axis.

Abstract: Methods of controlling an actuator during operation using a hydraulic circuit, and related apparatus, are described. The circuit has a first path section along which fluid is supplied to a first chamber of the actuator using a first valve and a second path section along which fluid is extracted from a second chamber of the actuator using a second valve. Pressure data associated with a pressure of the fluid supplied to the first side of the actuator are obtained, a pilot pressure pPilot is produced based on the data and the first and second valves are configured based on the pilot pressure pPilot.

Abstract: A spooling device for facilitating spooling of a wire on a drum winch from a feeding point includes a suspension cradle mounted to the mechanical frame. The suspension cradle supports a rotatable wire sheave or receiving the wire extending form the feeding point and for guiding the wire to a specific location on the drum winch. The suspension cradle having the wire sheave is slideably mounted to the frame in accordance with a curved path. The curved path is configured such that the fleet angle of the wire extending from the feed point is at least partially compensated in order to reduce fringing effects of the wire on the wire sheave during sliding movement of the wire sheave along its curved path.