Abstract: The present subject matter provides a multipurpose cantilever skidding frame having a first frame structure, a second frame structure and two connection beams integrally forming a rigid structure to provide longitudinal and lateral movement for an exemplary cantilever. The present subject matter also provides a drilling rig that enables a cantilever to be moved in both longitudinal and transverse directions.

Abstract: This invention relates to an integrated heavy lift and logistics vessel (100) for receiving another vessel (105). Further the integrated heavy lift and logistics vessel (100) is able to provide logistical support to the other vessel in remote locations. More particularly, this invention relates to an integrated heavy lift and logistics vessel that is designed to carry out heavy lifting and logistic supply functions in a stable manner. The integrated heavy lift and logistics vessel is also equipped with safe refuge quarters, helipad(s), various forms of storage, and areas for storage.

Abstract: A structural block is fabricated with necessary components and structure for LNG storage and/or process. The structural block may be an LNG tank with the same configuration as that in an LNG carrier. The structural block may also be a regasification plant or a liquefaction plant to be used for LNG process. An existing vessel, e.g. an LNG carrier, is cut apart to form a forward section and an aft section. The forward section and the aft section are moved away from each other to form a space therebetween. The structural block is then placed into the space and jointed to the forward and aft sections, by welding for example, to form an integrated new vessel. The structural block provides the new vessel with increased LNG storage and transportation capabilities as well as regasification and/or liquefaction process facilities to meet the increased demand for LNG storage, transportation and processing.

Abstract: Embodiments of the present invention relate to a system and method for efficient removal of sulfur oxides (SOx), nitrogen oxides (NOx) and particulate matter (PM) contained in an exhaust gas generated from fuel combustion and efficient treatment of water containing microorganizms (e.g. ballast water).

Abstract: The present invention relates to a coupling system for coupling two floating structures together. The coupling system is able to accommodate the relative rotational and translation motions between the two floating structures without becoming disconnected. Furthermore, the coupling system has an engagement and disengagement mechanism that may be implemented remotely and efficiently.

Abstract: A semi-submersible platform that is suitable to serve as a logistics hub at a remote offshore location. The semi-submersible platform is configured in a V-shape to reduce motion of the semi-submersible platform caused by rough sea conditions. The semi-submersible platform has a vessel docking area within the platform and a balancing unit to balance the unsymmetrical load of the platform that protects a vessel in the docking area from rough sea conditions.

Abstract: The present invention provides an the ice resistant Jackup leg that comprises a plurality of chords, a plurality of plate structures, wherein the chords and plate structures are alternatively positioned so that the plate structures connect the chords to form the peripheral structure of the ice resistant Jackup leg, a plurality of longitudinal stiffeners, wherein the longitudinal stiffeners are disposed onto the inner surface of the plate structures for stiffening the plate structures, and a plurality of traverse web frames or girders, wherein the traverse web frames or girders are disposed onto the inner surface of the plate structures for supporting the plurality of longitudinal stiffeners. The present invention also provides an ice resistant Jackup platform employing the ice resistant Jackup leg.

Abstract: The present invention provides an LNG production system and method with improved refrigeration. The refrigeration is achieved by a refrigeration device comprising a plurality of refrigerant compressors (11, 13, 15, 17) configured into a series arrangement to perform multi-stage compressions of a refrigerant, a plurality of aftercoolers (12, 14, 16, 18) each of which being coupled to each of the plurality of refrigerant compressors to cool the compressed refrigerant, a plurality of turboexpanders (19, 20) coupled to the last aftercooler (18) and configured into a series configuration to perform multi-stage expansions of the compressed refrigerant, and a plurality of refrigerant heat exchange means (33, 34) coupled to both the first (11) of the plurality of refrigerant compressors and the last (20) of the plurality of turboexpanders, so that all components form a close refrigeration cycle.

Abstract: The present invention provides a method and apparatus for installation of an energy chain system onto equipments at an operation site. A base fixture is provided at a preparation site which is independently operable from the operation site. A drag chain assembly and an auxiliary fixture are attached to the base fixture. Cables/hoses required to be installed onto equipments at the operation site are arranged and attached to the auxiliary fixture. The base fixture carrying the drag chain assembly, the auxiliary fixture and the cables/hoses pre-arranged on the auxiliary fixture are then transported to the operation site to enable cable/hose installation and connection to the equipments. The auxiliary fixture is removed upon completion of the cable/hose installation and connection.

Abstract: Disclosed are various apparatus and method for transferring a hydrocarbon fluid between two bodies. An offloading system for facilitating hydrocarbon fluid transfer between two bodies includes a transfer skid and a lifting system. The transfer skid is movable from a first body to a second body to be installed thereupon to facilitate hydrocarbon fluid transfer to and from the first and the second bodies. The lifting system may be provided on the first body, and includes an extendable lifting arm; a spreader frame attachment which includes at least a first and a second lifting device to support the transfer skid, wherein the spreader frame attachment is rotatably coupled to the extendable lifting arm to allow angular or rotatable adjustment of the transfer skid in a horizontal plane.

Abstract: Disclosed are various apparatus and method for transferring a hydrocarbon fluid between two bodies. To this purpose, a transfer skid and transfer hoses are moved from a first body to a second body to be installed thereupon to provide fluid communication between the two bodies. Offloading of hydrocarbon fluid may then take place between the two bodies. Emergency release operation may be triggered during the offloading, where the transfer hoses are disconnected from the transfer skid, and are returned to the first body. Various features of the transfer skid and associated apparatus allow the transfer skid to be installed on the second body with improved mating connections, transfer hoses to be returned to the first body after offloading operation without hydrocarbon fluid leakage, and transfer hoses to disconnect with speed and safety during emergency release operation.

Abstract: The present invention provides a riser protection structure being suitable to be employed in a Jackup rig. The riser protection structure comprises a plurality of piles, an upper module, wherein the upper module comprises a main protection tubing for receiving a riser, a plurality of sleeves to be installed over the plurality of piles, and a connecting network; wherein the plurality of sleeves are disposed around the main protection tubing; and wherein the main protection tubing and the plurality of sleeves are connected together by the connecting network, and a lower module, wherein the lower module comprises a plurality of tubular guides for guiding and later fixing the piles and a connecting structure, wherein the plurality of piles are securely disposed into the seabed for providing the requisite support for the upper and lower modules when they are assembled.

Abstract: The present subject matter provides a multi-direction direct cantilever skidding system suitable for an offshore drilling system, where the multi-direction direct cantilever skidding system comprises movable guides accommodating a cantilever of a Jackup drilling unit or other mobile platform and enabling transverse skidding rails to provide direct support for the cantilever so the cantilever may be moved longitudinally and transversely.

Abstract: The invention relates to a jack-up rig. The inventive rig would work like a conventional jack-up rig while in open water with the hull jacked up out of the water. However, in the event of ice conditions, the hull is lowered into the water into an ice defensive configuration. The hull is specifically shaped with a lower portion that is an ice-bending surface to bend and break up ice that comes in contact with the hull while in the ice defensive configuration. Furthermore, the jack-up rig comprises at least two derricks.

Abstract: The present invention provides a structure-assisted Jackup system comprising a Jackup drilling unit with a main deck structure and a plurality of legs movably coupled with the main deck structure, one or more support base structures disposed on seabed, and a plurality of movable supports, wherein each of the plurality of movable supports is securely coupled with either the main deck structure or one or more support base structure. The present invention also provides a process for assembling the structure-assisted Jackup system.

Abstract: A structure-supported Jackup system comprising a Jackup drilling unit with a main deck structure and a plurality of legs movably coupled with the main deck structure, two or more support base structures disposed on seabed, and a plurality of movable supports, wherein each of the plurality of movable supports is securely coupled with either the main deck structure or one of the two or more support base structure.

Abstract: A single heavy lift system is made of modular units, each of which has a pair of supporting legs carrying a transverse beam therebetween. The beam is engaged to the supporting legs through jackup units that allow the transverse beams of several modular units move in unison and thus increase lifting capacity of the system. The modular units can be formed as modular, self-propelled units, transported to the site, where the lifting task is to be performed if necessary. The system can be positioned in a dry dock or offshore.

Abstract: The present invention provides a method and apparatus for installation of an energy chain system onto equipments at an operation site. A base fixture is provided at a preparation site which is independently operable from the operation site. A drag chain assembly and an auxiliary fixture are attached to the base fixture. Cables/hoses required to be installed onto equipments at the operation site are arranged and attached to the auxiliary fixture. The base fixture carrying the drag chain assembly, the auxiliary fixture and the cables/hoses pre-arranged on the auxiliary fixture are then transported to the operation site to enable cable/hose installation and connection to the equipments. The auxiliary fixture is removed upon completion of the cable/hose installation and connection.

Abstract: Disclosed are systems and methods for limiting structural damage to an affected offshore platform and preventing damage spread from the affected offshore platform to another platform during an accident or an emergency condition. An offshore platform arrangement includes a mobile offshore production unit (MOPU), a mobile storage platform and a mobile offloading platform which are disposed at a clearance distance from one another. The platforms are fluidly connected by pipes to allow hydrocarbon fluid transfer therebetween. The pipes are adapted to cease fluid communication of hydrocarbon fluid between platforms for preventing damage spread therebetween. Also disclosed is an offloading system for hydrocarbon fluid transfer which includes a lifting system having an extendable lifting arm and a spreader frame platform rotatably coupled to the lifting arm. The spreader frame platform is operable to support a transfer skid and allow angular adjustment of the transfer skid in a horizontal plane.

Abstract: Embodiments of the present invention provide a process for liquefaction of a natural gas. The process includes cooling the natural gas with a first refrigerant provided by a first cooling system and cooling the natural gas with a second refrigerant provided by a second cooling system. The second cooling system is a single phase cooling system. The first and second cooling systems operate independently from each other. The second refrigerant is cooled with the first refrigerant so that the cooling capacity of the second refrigerant and the second cooling system is increased.