Described is a device for lifting an object from a deck of a vessel subject to movements in a heave direction. The device comprises a support surface (6a) for the object provided at a first height (11) in the heave direction relative to the deck. A lifting crane (5) is configured to take up the object from the support surface (6a) at a lifting point thereof at a lifting speed. An actuator system (16) is configured to lower the support surface (6a) relative to the deck at the instant in time at which the object is lifted from the surface to a second height in the heave direction at a lowering speed. A method using the device is also described.

The invention relates to a davit arrangement (1, 20) arranged suspended over one or more boats or cargo devices (B, C) onboard a ship or similar vessel for launching or storing the one or more boats or cargo devices (B, C), the davit arrangement (1, 20) comprises a davit housing (19) having telescopically displaceable davit arm (3, 4, 5) and a hoisting arrangement (6) for hoisting and lowering the one or more boats or cargo device (B, C). The davit arrangement comprises a carrier (2) slidable connected to the davit arm (3, 4, 5), the hoisting arrangement (6) being further connected to the carrier (2), the davit housing (19) is connected to a turntable (10) for rotational movement of the davit arrangement (1, 20) around a center axis (A), the carrier (2) is adapted to be retracted to an innermost position where the hoisting arrangement (6) is aligned with the center axis (A) of the turntable (10). The invention further relates to a method for transporting a boat or a cargo device (B, C) using the davit arrangement and a davit arrangement system.

The present invention relates to a motion (heave) compensation system for a load hanging from a mobile unit (1), the system comprising two blocks (3, 4) and hybrid damping means. According to the invention, the damping means comprise an oleopneumatic damping system (6) and an electric drive system (9, 10). The invention further relates to the use of such a compensation system for heave compensation for drilling tools support.

The present invention relates to a motion (heave) compensation system for a load hanging from a mobile unit (1), the system comprising two blocks (3, 4) and hybrid damping means. According to the invention, the damping means comprise an oleopneumatic damping system (6) and an electric drive system (9, 10). The invention further relates to the use of such a compensation system for heave compensation for drilling tools support.

A remote anchoring apparatus is mad of two elements, an anchoring element and a connecting element. The connecting element is formed to be guided into a respective space made in the anchoring element and be locked in it. The connecting element may be guided towards the anchoring element by a flexible pulling means such as a rope pulled through the anchoring element.

A lifting apparatus comprises: a base part, a lifting rope, a sheave assembly, a first rotatably mounted sheave, around which the rope passes and from which the rope extends downwardly to a load, a second rotatably mounted sheave and a drive for moving the sheave assembly. The sheave assembly is mounted for pivotal movement relative to the base part about an axis of pivoting spaced from the axis of rotation of the first sheave and coincident with the axis of rotation of the second sheave. During movement of the load relative to the base part, the first sheave is moved by the drive to compensate for that relative movement, the movement of the first sheave being such that the vertical component of the movement of the first sheave relative to the load is less than the vertical component of the movement of the base part relative to the load.

A lifting apparatus comprises: a base part, a lifting rope, a sheave assembly, a first rotatably mounted sheave, around which the rope passes and from which the rope extends downwardly to a load, a second rotatably mounted sheave and a drive for moving the sheave assembly. The sheave assembly is mounted for pivotal movement relative to the base part about an axis of pivoting spaced from the axis of rotation of the first sheave and coincident with the axis of rotation of the second sheave. During movement of the load relative to the base part, the first sheave is moved by the drive to compensate for that relative movement, the movement of the first sheave being such that the vertical component of the movement of the first sheave relative to the load is less than the vertical component of the movement of the base part relative to the load.

Transportable inline heave compensator provided with connection devices for suspending the compensator from a load bearing device and a connection device for a carrying a payload, where the compensator comprises a passive heave compensator part and possibly an active heave compensator part, and being provided with a sensor arrangement, where the compensator further comprises at least one actuator, that is horizontally oriented in operation and comprises an actuator piston rod with a horizontally stroke indirectly connected to a rope means, where the rope means at an end, via a connection device, such as a padeye, is connected to at least one of; a vessel at the sea surface or a payload, incorporating a device with a curved surface where rope means is suspended to for converting the vertical movements of vessel or payload to horizontal movements of the actuator piston rod compensating the load.

A method of providing motion compensation of a subsea package with a synthetic rope comprising attaching the synthetic rope to the subsea package, supporting a first gripper with a wire rope from a winch capable of motion compensation control characteristics and gripping the synthetic rope with the first gripper, supporting a second gripper with a second wire rope, and repeating the following sequence: lowering the first gripper, the synthetic rope, and the subsea package a first distance, gripping the synthetic rope with the second gripper, releasing the first gripper from the synthetic rope, raising the first gripper the first distance, gripping the synthetic rope with the first gripper, releasing the second gripper from the synthetic rope, such that when the subsea package is lowered proximate the subsea landing location the winch capable of operating with motion compensation characteristics can operate to compensate for the vessel motion and smoothly lower the subsea package to the subsea landing location.

A method of providing motion compensation of a subsea package with a synthetic rope comprising attaching the synthetic rope to the subsea package, supporting a first gripper with a wire rope from a winch capable of motion compensation control characteristics and gripping the synthetic rope with the first gripper, supporting a second gripper with a second wire rope, and repeating the following sequence: lowering the first gripper, the synthetic rope, and the subsea package a first distance, gripping the synthetic rope with the second gripper, releasing the first gripper from the synthetic rope, raising the first gripper the first distance, gripping the synthetic rope with the first gripper, releasing the second gripper from the synthetic rope, such that when the subsea package is lowered proximate the subsea landing location the winch capable of operating with motion compensation characteristics can operate to compensate for the vessel motion and smoothly lower the subsea package to the subsea landing location.