A method and system for heading control during ship-to-ship (STS) transfer of liquefied natural gas (LNG). A method for heading control during STS transfer of LNG while moored on a buoy includes berthing a floating storage regasification unit (FSRU) to a buoy at a forward end of the FSRU, holding a stern of the berthed FSRU at a first heading with a bow of the FSRU pointing into a current, docking an LNG carrier (LNGC) alongside the berthed FSRU, mooring the LNGC to the berthed FSRU in a double-banked configuration at the first heading, adjusting the first heading of the FSRU and moored LNGC to a second heading with the bow of the FSRU and a bow of the LNGC pointing into a swell, and transferring LNG from the LNGC to the FSRU while the FSRU and moored LNGC are pointed into the swell.

The invention concerns a cargo transfer vessel for transferring fluid between an offshore production facility and a tanker and a method for transferring the fluid. The cargo transfer vessel comprise a hull having a first and a second outer longitudinal hull side; a deck, propulsion means for actively maintaining the cargo transfer vessel at a predetermined distance from the offshore production facility and the tanker during fluid transfer operations and fluid transfer means for transferring fluid between the offshore structure and the tanker. The vessel is further characterized in that the hull comprises a main hull member and at least one protruding hull member arranged below the cargo transfer vessels water line at each of the outer longitudinal hull sides for suppressing roll of the vessel, wherein the at least one protruding hull member extends at least partly along the hulls longitudinal length, i.e. from the start of the vessel's bow to the end of the vessel's aft.

The invention relates to an offshore charging station (OCS) for water vessels at least partially electrically driven comprising one or more chargers with one or more charging interfaces for wired/wireless static/dynamic charging/discharging and supported by various supporting constructions. The OCS may further comprise charging interface mounts, marine engineering constructions, facilities, operational security control elements, thermal management systems, marine attachments, payment terminals. The OCS may be part of a cloud-based communication system, a hydrogen powering system, a marine fuelling system, a marine rechargeable power source system comprising a rechargeable power source, a source management system, a buoyant or a nonbuoyant container, a charging interface, a mobility device, a payment terminal, a thermal management system, a power source. The OCS and the marine rechargeable power source may provide data transmissions and may be provided in a modular system. An offshore swapping method using the marine rechargeable power source is proposed.

A marine vessel and method for carbon capture and sequestration are described. The marine vessel includes a buoyant hull, a cryogenic storage tank within the hull, and a gaseous carbon dioxide loading manifold. The marine vessel also includes a carbon dioxide liquefaction system in fluid communication with the cryogenic storage tank downstream of the carbon dioxide liquefaction system and with the gaseous carbon dioxide loading manifold upstream of the carbon dioxide liquefaction system. Finally, the marine vessel includes a carbon dioxide supercritical system in fluid communication with the cryogenic storage tank. In operation, the marine vessel moves between multiple locations, where gaseous carbon dioxide is onboarded, liquified and stored. Thereafter, the marine vessel transports the liquified carbon dioxide to a location adjacent an offshore geological reservoir. The liquefied carbon dioxide is then pressurized to produce supercritical carbon dioxide, which is then injected directly into the reservoir from the marine vessel.

A device includes at least one float. The at least one float is configured to provide a buoyancy force away from a seabed when placed in water. The device also includes an enclosure configured to house the at least one float. The enclosure comprises at least one connection configured to couple the enclosure to a self-elevating unit used in offshore oil operations or offshore gas operations.

A ship and a method are for bringing liquified gas, such as liquified carbon dioxide, CO.sub.2, from an onshore terminal for captured gas across a sea to a subsurface permanent storage reservoir. The ship has a loading line for communicating liquified gas from the onshore terminal into at least one vessel, and a processing plant. The processing plant of the ship has an injection processing module configured for injecting liquified gas into the subsurface permanent storage reservoir, wherein the injection processing module is operatively connected to the at least one vessel and an injection line provided with a connector for connecting to a flexible injection hose being in fluid communication with the subsurface permanent storage reservoir.

A system for offshore, direct carbon dioxide sequestration includes an offshore marine platform fixed to the ocean floor above an offshore, subsea storage reservoir. A carbon dioxide floating storage unit moored adjacent the marine platform gathers and stores carbon dioxide delivered in discreet amounts from carbon dioxide sources. Carbon dioxide sources may include carbon dioxide delivery vessels and a carbon dioxide capture system mounted on the marine platform. Once a desired volume of carbon dioxide has been gathered in the carbon dioxide floating storage unit, compressors in fluid communication with the carbon dioxide floating storage unit may be utilized to increase the pressure of the gathered carbon dioxide to a desired injection pressure, after which the pressurized carbon dioxide is pumped directly from the fixed marine platform into the subsea storage reservoir.

The invention relates to a marine rechargeable power source system (MPS) for water vessels at least partially electrically driven comprising a rechargeable power source, a source management system and a container which may be buoyant or nonbuoyant. The MPS may further comprise power transfer interfaces, power cables, thermal management systems, power sources, payment terminals, mobility devices. The MPS may provide data transmissions, may be a swappable power source and its container may be conveniently shaped. The MPS may be provided in a cloud-based communication system, a hydrogen gas powering system, a marine fuelling system and a modular system. An offshore swapping method using the MPS is proposed which can comprise a step of transferring power between the MPS and the water vessel at least partially electrically driven while stationary or in a motion. A swapping place may comprise charging apparatuses and power sources.

A floating driller having a hull, a main deck, an upper cylindrical side section extending downwardly from the main deck, an upper frustoconical side section, a cylindrical neck section, a lower ellipsoidal section that extends from the cylindrical neck section, and a fin-shaped appendage secured to a lower and an outer portion of the exterior of a bottom surface. The upper frustoconical side section located below the upper cylindrical side section and maintained to be above the water line for a transport depth and partially below the water line for an operational depth of the floating driller.

An offshore hydrocarbon processing facility (2) comprises an offshore floating structure (8) and a submerged floating riser deck (10). The submerged floating riser deck is operatively connected to a subsea hydrocarbon riser (12). Hydrocarbon processing equipment (26) is disposed on the submerged floating riser deck. The offshore floating structure (8) may be connected to the submerged floating riser deck (10) using a riser (16) that can be disconnected if there is inclement weather.