Abstract: A cold energy recovery apparatus for a self-powered data centre is disclosed. The apparatus comprises a fluid storage tank having at least a pair of inlet and outlet, the inlet configured to receive a coolant; and a heat exchanger arranged in the tank, the heat exchanger having a pair of inlet and outlet, the inlet configured to receive liquefied natural gas. The apparatus is operable to permit the coolant to flow from the inlet to the outlet of the tank causing the coolant to be in fluid contact with the heat exchanger, in which the coolant is progressively cooled to a lower temperature by heat transfer to the liquefied natural gas via fluid contact with the heat exchanger. The liquefied natural gas is vaporized into natural gas due to the heat transfer and is directed out from the outlet of the heat exchanger.

Abstract: This disclosed embodiments of this invention relate to a semi-submersible vessel. The semi-submersible vessel includes a deck, at least four columns supporting the deck, a first pontoon, a second pontoon, a first brace and a second brace. Each column comprises an outer skin, an inner skin, and a number of reinforcing plates spaced apart from each other and connecting the inner skin to the outer skin, forming a double skin arrangement. The first pontoon is connectable to a first pair of columns and the second pontoon is connectable to a second pair of columns. The first brace is connectable to the first of each of the two pairs of columns and the second brace connects the second of each of the two pairs of columns.

Abstract: The invention provides a power storage and supply method and system for a drilling rig. The system comprises a primary common direct current (DC) bus, at least one secondary DC bus, at least one bi-directional DC-to-DC converter connected between the primary common DC bus and the secondary DC bus, at least one motor group each connected to the secondary DC bus through a DC-to-AC inverter, and an Energy Storage System (ESS) configured to be charged by regenerative energy from at least one motor group and discharge power to at least one motor group through the primary common DC bus and the bi-directional DC-to-DC converter. The system may further comprise a bi-directional AC-to-DC converter between the primary DC bus and an AC bus, wherein the ESS is further configured to be charged by regenerative energy generated during lowering operation of a jacking system for the drilling rig, wherein the jacking system is connected to the AC bus.

Abstract: A cold energy recovery apparatus for a self-powered data centre is disclosed. The apparatus comprises a fluid storage tank having at least a pair of inlet and outlet, the inlet configured to receive a coolant; and a heat exchanger arranged in the tank, the heat exchanger having a pair of inlet and outlet, the inlet configured to receive liquefied natural gas. The apparatus is operable to permit the coolant to flow from the inlet to the outlet of the tank causing the coolant to be in fluid contact with the heat exchanger, in which the coolant is progressively cooled to a lower temperature by heat transfer to the liquefied natural gas via fluid contact with the heat exchanger. The liquefied natural gas is vaporized into natural gas due to the heat transfer and is directed out from the outlet of the heat exchanger.

Abstract: Systems and methods related to a drilling rig or a drill ship having a first activity center with a main well, a second activity center with an auxiliary well and a third activity center with offline casing with drill pipe stand-building capabilities. The offline casing and drill stand-building facility is a standalone feature and can be located in the forward or aft side of a drilling rig or drill ship depending on the choice of the builder or operator.

Abstract: This invention relates to a pipe-like appendage for a sharp-edged pontoon of an offshore vessel, a pontoon structure comprising the pipe-like appendage and a method of converting a sharp-edged pontoon into a pontoon comprising at least one rounded-edge.

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: The invention relates to an arrangement of one or more cryogenic tank containers for storing liquefied natural gas (LNG) or compressed natural gas (CNG) on an open deck of a tugboat. The one or more cryogenic tank containers are removably mounted on and at an aft deck area of the tugboat and are provided with means for supplying LNG or CNG to the engine of the tugboat.

Abstract: The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.

Abstract: This invention relates to a drilling tender unit. In particular, the invention relates to a drilling tender unit having a hull of trimaran or catamaran configuration.

Abstract: This invention relates to a submersible vessel for dry docking a vessel. The submersible vessel comprises a floating unit, a deck above the floating unit and a number of stabilizing towers arranged on the deck. The deck has a base, a sidewall along a perimeter of the base and a block provided within the sidewall and resting on the base, defining a cavity such that when the vessel is being docked onto the deck, a thruster of the vessel is above the cavity.

Abstract: The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.

Abstract: This invention relates to a drilling tender unit. In particular, the invention relates to a drilling tender unit having a hull of trimaran or catamaran configuration.

Abstract: The present disclosure relates to an apparatus and method of removing pollutants from exhaust gas by wet scrubbing process. In a scrubber apparatus of the present disclosure, an exhaust gas is first scrubbed in a primary mixing zone, the partially scrubbed gas discharged from the primary mixing zone is subsequently mixed forcibly in a secondary mixing zone before being discharged for polishing, demisting and/or reheating.

Abstract: The invention relates to an arrangement of one or more cryogenic tank containers for storing liquefied natural gas (LNG) or compressed natural gas (CNG) on an open deck of a tugboat. The one or more cryogenic tank containers are removably mounted on and at an aft deck area of the tugboat and are provided with means for supplying LNG or CNG to the engine of the tugboat.

Abstract: A self-elevating platform comprises a deck structure, a plurality of legs, a plurality of footings, and a jacking system, wherein the plurality of legs pass through the deck structure and are supported by the plurality of footings; and wherein the jacking system comprises a jackcase structure with a first locking pin, a jacking yoke with a second locking pin, a plurality of jacking cylinders with a first end and second end, where the first end of the jacking cylinders is supported by the jackcase structure, and the second end of the jacking cylinders by the jacking yoke; and a fixation system comprising a plurality of tension rods, wherein each tension rod has a first end and a second end, and wherein the first end of the tension rods is securely coupled with the jacking yoke, and the second end of the tension rods is securely coupled with the deck structure; thereby when the plurality of tension rods secures the jacking yoke to the deck structure, the load can be removed from the hydraulic cylinders and tran

Abstract: This invention relates to a liquefied natural gas (LNG) regasification apparatus and method. More particularly, this invention relates to a single-compact LNG regasification apparatus that utilizes indirect heating means to build up pressure in a storage tank, vaporize LNG and superheat natural gas.

Abstract: This invention relates to a vessel having an extendable and retractable cursor frame assembly for deploying other vessels into a body of water. The retractable cursor frame assembly on the main vessel may be retracted and secured on a module of the main vessel as the main vessel is in transit. When another vessel is to be deployed into the body of water from the main vessel, the cursor frame assembly is then extended into the body of water to facilitate the launch of the other vessel.

Abstract: A versatile multipurpose jackup unit comprises a hull with a top platform; and a configurable and detachable cantilever installation system comprising a plurality of longitudinal working groups; wherein each longitudinal working group comprises a stern pad, and more than one fixed cantilever hold-down modules.

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.