摘要:
A vessel generally in the form of a tanker or tank barge, the vessel having means for dynamically positioning thereof, to allow the vessel to approach an offshore facility, and deploy a gangway to it, allowing crew to transfer onto the facility, thereby making crew available to a normally unmanned facility. There is also provided a vessel comprising a hull having a bottom section adapted to be received by the surface of a body of water, the bottom section comprising at least one first and second helical propellers, the first helical propellers located adjacent the bow of hull and the second helical propellers located adjacent the stern of the hull. Moreover, there is provided a hose spooling device wherein the device is adapted to be connected to the facility for loading or unloading of hydrocarbons through paying out a hose over or near to the bow of the vessel.
摘要:
A towing device intended to equip the deck of a ship (10) and comprising a winch (16), a cable (14) and a fairlead (20), the cable (14) circulating in the fairlead (20) under the action of the winch (16), the fairlead (20) comprising a frame (21) and at least one first and one second sectors, the sectors making it possible to guide the cable (14) in a channel formed in each of the sectors. The device comprises an articulation with a degree of freedom allowing the rotation of the second sector relative to the frame (21) about an axis contained in a plane comprising a first direction in which the cable can extend in the first sector, characterized in that the first sector is secured to the frame (21) and is interposed between the winch (16) and the second sector.
摘要:
A system for anchoring to the ground, via chains, a floating platform, whose operating station includes: activatable/deactivatable stopper elements for each of the anchor chains, for locking in position the associated chain that ends by an upstream free strand including an end connection chain link, wherein the stopper elements are arranged side by side, along a same line, and are each associated with one housing-reservoir for storing the upstream free strand of the associated chain; and tensioning elements common to the different chains, and including a single tensioning winch, movably mounted above the stopper elements, wherein the tensioning winch includes a master chain strand, whose downstream end includes a downstream chain link adapted to be removably attached to the connection chain link of the upstream free strand of the anchor chains, and whose upstream end is stored in a container-reservoir.
摘要:
Disclosed are platforms adapted to be mounted onto anchor handling vessels (AHVs) and AHVs useful for replacing a used wire rope segment or for installing a new wire rope segment in a mooring line which can be used for mooring a floating vessel such as a floating storage and offloading (FSO) vessel.
摘要:
A system of lashing a tender assist drilling unit (TADU) to a floating production platform includes a plurality of lashing lines reeved over a hydraulic-pneumatic tensioning system sheave assembly and a plurality of fixed anchor points to the above water line section of the production platform hull structure. The hydraulic-pneumatic tensioning device will, when in tensioning mode, compensate and control the relative movement between the two floating bodies. The hydraulic-pneumatic tensioning system will also enable lashing pre-tension adjustments during operations and fine-tuning of system performance can be done site-specific based on lessons learned. The hydraulic-pneumatic tensioning device will, when in hydraulic lock mode, enable a fixed lashing line system. This will by the means of the first units mooring winch system enable; a winch-in for close proximity during heavy lifting; or an efficient lashing pay put during extreme weather preparation for increased separation between the two units.
摘要:
A floating construction (1, 11) includes a vessel (2, 12) partially or fully filled with water and with transparent walls or with walls including transparent sections, and space (3, 5, 6) provided around or partially around the vessel, where the vessel includes at least one opening allowing the surrounding water to enter into the vessel, wherein the space (3, 5, 6) provided around the vessel (2, 12) is enclosed to provide interior observation area for activities taking place inside the vessel.
摘要:
An equipment complex for deploying and recovering marine geophysical seismic or electric-survey bottom stations is mounted on a ship. The complex includes—a powered capstan, —rotatable turntables and rolls, —load-bearing units connected to the bottom stations by various fasten means and capable of winding onto the capstan and turntables, a work platform supporting a bottom station placed thereon, —an indicator for registration of the bottom stations' coordinates, mounted on the platform, —a limit switch mounted on the platform, switching ON when the bottom station is placed on the work platform, and OFF when it's removed therefrom providing for operation of the indicator. The complex may include floating buoys, damping loads, and halyards for deploying the stations. Methods for deploying and recovering the bottom stations using the equipment complex are described. Some recovering methods contemplate winding the load-bearing units onto the capstan, while switching the turntables for each subsequent load-bearing unit.
摘要:
A floating dock mover that utilizes electrically powered devices to aid in relocating a floating dock whenever water levels change in a lake or reservoir. Electrical powered winching mechanisms are used to adjust cables lengths to maintain a position, or aid to obtain a new position of the dock in relation to the shoreline. Additionally, a motorized speed reducer is used to turn the wheels on the dock walkway, which moves the walkway and dock away from, or toward the shore. By electrically powering winch cable lengths, plus electrically powering the walkway wheels, the dock can be relocated horizontally and vertically and maintain a relative desired position in relation to a moving shoreline. An additional electrically motorized unit is used to operate an anchor which aids in maintaining a dock in a desired position.
摘要:
This publication discloses a method and a winch system for powering a winch handling loads at an end of a line associated with a winch drum, the winch being powered by means of one or more electric motors and one or more hydraulic motors via a gear, in that said one or more hydraulic motors are operated when the load in the line exceeds a predetermined load level for taking care of quick hauling in or paying out the line to compensate for vertical motion of the winch, for example vessel due to waves, and the output shaft(s) of said one or more hydraulic motors are connected to the drum shaft through combination of a sun wheel, planet wheels and parallel wheels. Both a system and use of the invention are disclosed.
摘要:
An apparatus for anchoring a floating off-shore unit or other type of floating vessel, comprising a rotatably mounted chain sprocket wheel (3) having a chain (3a) secured on its outer periphery, The wheel (3) being arranged to be rotated by reciprocating movement of at least two hydraulic cylinders (1, 2). Each of the cylinders (1, 2) is provided with a locking arm (6, 7) for releasably and mechanically engaging a portion of the wheel (3) in order to rotate the wheel (3) during movement of the respective cylinders (1, 2). Also described is a chain stopper comprising at least four blocks (8) that are hinged at their first ends and at their second ends have a surface that is adapted to engage a chain link The blocks (8) are mounted in opposite pairs.