A floating cryogenic storage structure includes a hull with a center line extending in a length direction and two longitudinal side walls, the structure including at least three spherical storage tanks, two tanks being situated with their midpoints on spaced apart longitudinal positions along a first line extending in the length direction at a first side of the center line and a third tank being situated with its midpoint on a longitudinal position on a second line extending in the length direction at a second side of the center line, and a transverse distance between the first and second lines not larger than a diameter of the tanks and the longitudinal position of the midpoint of the third tank situated between the longitudinal positions of the midpoints of the first and second tanks.

A marine distribution vessel includes a barge that has a deck, at least one fuel tank, and at least one lubricant tank. A distribution station is disposed on the barge and is connected with the at least one fuel tank and the at least one lubricant tank. The distribution station is configured to dispense fuel and lubricant on-demand to patron marine vessels and track amounts of fuel and lubricant dispensed. The distribution station includes a fuel pump, a lubricant pump, a fuel flow meter, an automated fuel valve, a lubricant flow meter, an automated lubricant valve, and a computerized controller that is electrically connected with the fuel flow meter, the lubricant flow meter, the automated fuel valve, the automated lubricant valve, the fuel pump, and the lubricant pump. The distribution station is mounted at an elevated position above the deck of the barge.

A marine distribution vessel includes a barge that has a deck, at least one fuel tank, and at least one lubricant tank. A distribution station is disposed on the barge and is connected with the at least one fuel tank and the at least one lubricant tank. The distribution station is configured to dispense fuel and lubricant on-demand to patron marine vessels and track amounts of fuel and lubricant dispensed. The distribution station includes a fuel pump, a lubricant pump, a fuel flow meter, an automated fuel valve, a lubricant flow meter, an automated lubricant valve, and a computerized controller that is electrically connected with the fuel flow meter, the lubricant flow meter, the automated fuel valve, the automated lubricant valve, the fuel pump, and the lubricant pump. The distribution station is mounted at an elevated position above the deck of the barge.

A method of unloading cargo at sea from a cargo vessel to a cargo barge, comprising the steps of providing a catamaran vessel having a pair of spaced apart catamaran hulls and a pair of spaced apart arch shaped frames, each frame attached to each hull at a frame lower end portion; positioning the cargo vessel in between the hulls and under the top portion of the frames; placing one or more cargo barges next to one or both of the hulls, wherein the hull is in between the cargo vessel and the cargo barge; and unloading cargo from the cargo vessel to the cargo barge wherein the cargo travels from the cargo vessel, over the catamaran hull to the cargo barge.

A method of unloading cargo at sea from a cargo vessel to a cargo barge, comprising the steps of providing a catamaran vessel having a pair of spaced apart catamaran hulls and a pair of spaced apart arch shaped frames, each frame attached to each hull at a frame lower end portion; positioning the cargo vessel in between the hulls and under the top portion of the frames; placing one or more cargo barges next to one or both of the hulls, wherein the hull is in between the cargo vessel and the cargo barge; and unloading cargo from the cargo vessel to the cargo barge wherein the cargo travels from the cargo vessel, over the catamaran hull to the cargo barge.

An offshore facility for producing a liquefied natural gas using an associated gas includes a crude oil production offshore facility having a crude oil processing device for refining crude oil collected from a subsea well to produce oil, and a gas reinjection device for compressing an associated gas separated in crude oil refining process to be reinjected into a reservoir, and a liquefied natural gas production offshore facility supplied with a feed gas including at least a part of the associated gas from the crude oil production offshore facility, and processing and liquefying the feed gas to generate a liquefied natural gas. The crude oil production offshore facility includes a feed gas supply unit for recovering a back-flow gas formed when an injection gas compressed by the gas reinjection device flows backward and generating the feed gas by using the back-flow gas.

A slew bearing includes a stationary bearing ring to be fixed to a base, a moveable bearing ring to be fixed to a moveable object, wherein the stationary bearing ring and the moveable bearing ring are configured to enable rotation of the moveable bearing ring relative to the stationary bearing ring about a rotation axis. A main axial bearing and an auxiliary bearing are provided between the stationary bearing ring and the moveable bearing ring, wherein the moveable bearing ring includes one or more main portions and one or more auxiliary portions, which one or more main portions are moveable relative to the one or more auxiliary portions between an operational position, in which the main axial bearing transfers the axial loads between moveable bearing ring and stationary bearing ring, and a maintenance position, in which the auxiliary axial bearing transfers the axial loads between moveable bearing ring and stationary bearing ring and the main bearing is allowed to be inspected and/or maintained so that the slew bearing during inspection and/or maintenance is still operational.

A marine distribution vessel includes a barge that fuel tanks and lubricant tanks, and a distribution station disposed on the barge and connected with the fuel tanks and the lubricant tanks. The distribution station includes a fuel pump and a fuel line that connects the fuel tanks with the fuel pump, a lubricant pump and lubricant lines that connect the lubricant tanks with the lubricant pump, a fuel flow meter disposed in the fuel line, an automated fuel valve disposed in the fuel line, a lubricant flow meter disposed in the lubricant lines, automated lubricant valves disposed in the lubricant lines, and a computerized controller electrically connected with the fuel flow meter, the lubricant flow meter, the automated fuel valve, the automated lubricant valves, the fuel pump, and the lubricant pump.

A marine distribution vessel includes a barge that fuel tanks and lubricant tanks, and a distribution station disposed on the barge and connected with the fuel tanks and the lubricant tanks. The distribution station includes a fuel pump and a fuel line that connects the fuel tanks with the fuel pump, a lubricant pump and lubricant lines that connect the lubricant tanks with the lubricant pump, a fuel flow meter disposed in the fuel line, an automated fuel valve disposed in the fuel line, a lubricant flow meter disposed in the lubricant lines, automated lubricant valves disposed in the lubricant lines, and a computerized controller electrically connected with the fuel flow meter, the lubricant flow meter, the automated fuel valve, the automated lubricant valves, the fuel pump, and the lubricant pump.

A double-shell tank includes: an inner shell storing liquefied gas; an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell; at least one metal sheet mounted to the inner shell, such that the metal sheet faces at least a bottom surface of the inner shell; an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption; and a thermal insulator covering the inner shell over the metal sheet.