Abstract: In a system for producing power and capturing carbon dioxide (CO2) at an offshore site, separator units separate a fluid produced from an offshore vessel in fluid communication with a reservoir into water, oil, and gas. The gas is sent to oxy-firing gas turbine generator units. Air separation units separate an air into nitrogen and oxygen. The oxygen is sent to the oxy-firing gas turbine generator units. Gas compression units compress an exhaust gas from the oxy-firing gas turbine generator units. Dehydration units dehydrate the compressed exhaust gas, and a portion of the dehydrated compressed exhaust gas is recycled back to the oxy-firing gas turbine generator units. Gas pumps inject a remaining portion of the dehydrated compressed exhaust gas into the reservoir. Additionally, the oxy-firing gas turbine generator units generates electricity with the oxygen, the gas, and the portion of the dehydrated compressed exhaust gas.

Abstract: A smart wave energy converter may include a reconfigurable floater; a reference wave frequency measurement module; a central control module; a submerged buoyancy element; one or more power take-off devices; and an anchoring system. The reconfigurable floater may be connected to the submerged buoyancy element by the one or more power take-off devices. The submerged buoyance element may be connected to the anchoring system. The reconfigurable floater may include one or more mechanisms to alter a natural heave frequency of the reconfigurable floater. The reference wave frequency measurement module may measure a frequency of a wave state and transmit a measured frequency to the central control module. The central control module may adjust a property of the one or more mechanisms to match the natural heave frequency of the reconfigurable floater to the measured frequency.

Abstract: A floating offshore wind turbine assembly unit useful for assembling or maintaining wind turbines at an offshore location is disclosed. The floating offshore wind turbine assembly unit may include a first vessel spaced a distance apart from a second vessel, and an extended deck coupled to the first vessel and the second vessel. The extended deck is positioned in the distance between the first vessel and the second vessel, and the extended deck is configured as a dry dock disposed or movable to a height above a sea level. In some embodiments, the extended deck or a portion thereof is movably coupled to the first vessel and the second vessel. For example, the extended deck or a portion thereof is movable between a submerged or near sea level position and a position above a sea level.

Abstract: A split mooring system may include at least two vessels in a body of water and a plurality of mooring lines. The plurality of mooring lines may be attached to the at least two vessels and configured to fix and maintain a position of the at least two vessels in the body of water relative to each other. A first vessel of the at least two vessels may be adjacent to a second vessel of the at least two vessels. The plurality of mooring lines may be attached to sides of the first vessel and the second vessel. The sides of the first vessel and the second vessel with mooring lines may face open water of the body of water.

Abstract: A truss system may include a plurality of beams. Each beam of the plurality of beams may have various cross-sectional sizes in a same plane. Additionally, the plurality of beams may have a geometric arrangement such that a structural weight at required strength level may be reduced to achieve optimal design.

Abstract: A method to manufacture a platform for offshore installation by determining one or more properties selected from a group consisting of a desired length, a cargo tonnage requirement, a heavy lift capacity, total buoyancy, and an operating depth of the platform, and designing a hull section, a first jack up rig, and a second jack up rig based on the determined properties. The first designed jack up rig is joined to a first end of the designed hull section, and the second designed jack up rig is joined to a second end of the designed hull section located opposite the first end.

Abstract: An improved oil recovery module may include a floating platform, one or more improved oil recovery pods disposed on the floating platform, and one or more injection assemblies fluidly connected to the one or more improved oil recovery pods and configured to be fluidly connected to one or more injection wellheads.

Abstract: A method of connecting a member to a floating structure, the method includes disposing the floating structure in a body of water and attaching the member to the floating structure. The method also includes changing an orientation of the floating structure and aligning the member with a connection device disposed on a lower portion of the floating structure.

Abstract: An attachment system for an offshore structure includes a porch configured to be affixed to the offshore structure, an adaptor configured to engage with one or more plates of the porch, and a latch to retain the adaptor into engagement with the one or more plates, in which the adaptor is configured to support an equipment device. A method of attaching equipment device to a structure includes affixing a porch of an attachment system to the structure, engaging an adaptor with one or more plates of the porch, and attaching an equipment device to the adaptor.

Abstract: A method of connecting a member to a floating structure, the method includes disposing the floating structure in a body of water and attaching the member to the floating structure. The method also includes changing an orientation of the floating structure and aligning the member with a connection device disposed on a lower portion of the floating structure.

Abstract: A support structure includes a column having multiple sides. A first side and a second side of the column are disposed at a first angle with respect to another. The second side and a third side of the column are disposed at a second angle with respect to another. The third side and a fourth side of the column are disposed at a third angle with respect to another. The fourth side and a fifth side of the column are disposed at a fourth angle with respect to another. The fifth side may be disposed at a fifth angle with respect to a sixth side and/or the first side of the column, in which the sixth side and the first side of the column may be disposed at a sixth angle with respect to another.

Abstract: A semi-submersible offshore structure, including a deck supported by a plurality of support columns, a submersible pontoon structure having the plurality of support columns extending to the deck therefrom, and a support spacer disposed between a sea bed and the pontoon structure.

Abstract: A support structure includes a column having multiple sides. A first side and a second side of the column are disposed at a first angle with respect to another. The second side and a third side of the column are disposed at a second angle with respect to another. The third side and a fourth side of the column are disposed at a third angle with respect to another. The fourth side and a fifth side of the column are disposed at a fourth angle with respect to another. The fifth side may be disposed at a fifth angle with respect to a sixth side and/or the first side of the column, in which the sixth side and the first side of the column may be disposed at a sixth angle with respect to another.

Abstract: An offshore liquefied natural gas regasification system is disclosed, which includes a mobile floating platform having a regasification unit disposed on it. The regasification unit is adapted to operatively couple to an outlet of a liquefied natural gas carrier. The regasification unit is adapted to operatively couple at its outlet to a tap on an offshore gas pipeline. The mobile floating platform is adapted to moor to at least one liquefied natural gas carrier.

Abstract: A drilling or other offshore application vessel which can have the outward appearance and other characteristic of a monohull vessel, comprised of two or more sub-hulls each of which may be sailed as an independent ship through restrictive waterways which would prevent passage of the assembled vessel. The sub-hulls are later joined together to form a composite drilling or other offshore application vessel. The sub-hulls in one example include a recessed portion which reduces the amount of ballast needed to balance the sub-hulls.

Abstract: A movable diverter housing including a guide adapted to be mounted to the underside of a drill floor on a drilling rig and a diverter housing adapted to move in engagement with the guide.