Entries |
Document | Title | Date |
20080267716 | SHALLOW/INTERMEDIATE WATER MULTIPURPOSE FLOATING PLATFORM FOR ARCTIC ENVIRONMENTS - A method and apparatus for conducting simultaneous drilling and production are provided. The apparatus can include a ship shape floating vessel, wherein the ship shape floating vessel includes at least two drilling derricks, at least two drilling modules, and at least one production module, all situated on the upper surface of the ship shape floating vessel. The drilling modules are adapted for conducting drilling operations; the production module is adapted for conducting production operations. The apparatus can include at least two marine risers, wherein each marine riser depends from a drilling or production module toward a hydrocarbon bearing zone or sea floor and is adapted for conducting drilling and/or production operations; at least one production turret located on the lower surface of the ship shape floating vessel; and at least one production riser, wherein the production riser depends from the production turret, extends toward the sea floor, and is adapted for conducting production operations. | 10-30-2008 |
20090232605 | Method and assembly for installing oilfield equipment at the water bottom - Subsea oilfield equipment ( | 09-17-2009 |
20100003085 | MATING - The present invention relates to a method of constructing a semi-submersible unit comprising a side wall, wherein the method comprises the steps of: placing a hull in a body of water, the hull comprising an opening for receiving an end piece, the end piece constituting at least a portion of the side wall; lowering the hull into the body of water, and connecting a deck structure to the hull to form a semi-submersible unit. | 01-07-2010 |
20100074692 | Open-Sea Berth LNG Import Terminal - Methods and systems for receiving liquefied natural gas (LNG) and delivering vaporized natural gas to a pipeline in fluid communication with onshore equipment and methods for importing LNG. In one embodiment, an open-sea berth import terminal includes a platform, which is fixed to the sea floor and includes two or more sets of berthing structures. LNG carriers berth at the open-sea berth import terminal to transfer LNG to a storage vessel moored at one of the berthing structures. LNG vaporization facilities, either on the storage vessel or the platform, vaporize the LNG prior to delivery to the pipeline. The storage vessel may include a barge or another LNG carrier. In other embodiments, the open-sea berth import terminal may have no storage facilities, but two LNG carriers may berth at the berthing structures to concurrently perform offloading operations, with one transferring LNG and the other performing other offloading operations to enhance operations. | 03-25-2010 |
20100221069 | Mobile, Year-Round Arctic Drilling System - A mobile, year-round drilling system (MYADS) for drilling offshore wells and/or performing other offshore activities at multiple, successive locations in an arctic or sub-arctic environment is provided. The present invention combines the ability to move to different locations and the strength to resist ice loading when on location and when ice-covering is present in the arctic or sub-arctic environment. The MYADS applies a multiple leg “jack-up” concept in which supporting legs are lowered through a hull to touch down on the seabed and elevate the hull out of the water. | 09-02-2010 |
20110002741 | MODULAR OFFSHORE PLATFORMS AND ASSOCIATED METHODS OF USE AND MANUFACTURE - Modular offshore platform systems and associated methods of transport and assembly are disclosed herein. A method of transporting a modular offshore platform to an offshore location in accordance with an embodiment of the disclosure includes transporting towing a first platform portion of the offshore platform to an offshore location and transporting a second platform portion of the offshore platform to the offshore location separately from the first platform portion. The method further includes attaching the second platform portion to the first platform portion at the offshore location, and anchoring at least one of the first and second platform portions to a sea floor at the offshore location. | 01-06-2011 |
20110052327 | TENSION LEG CONNECTION SYSTEM - Floating construction ( | 03-03-2011 |
20110206464 | LIFTING SYSTEM - The invention relates to a lifting system for watercraft or marine vessels. A temporary stationary positioning of the vessel on the seabed is possible by means of supporting legs which can be lowered and raised. A force-locking locking and braking device is hereby used. By means of hydro-mechanical means, combined with hydraulic devices, this allows a stationary position of a raised vessel and a lowering of the vessel during transition to the travel position to be achieved relatively quickly and efficiently. | 08-25-2011 |
20110299935 | Apparatus for forming a protected region in a body of water and method for assembling an apparatus - The invention relates to an apparatus ( | 12-08-2011 |
20110318112 | Transportation method for wind energy converters at sea - A method and device for installing wind energy converters at sea is disclosed, whereby the wind energy converter is carried by a setup of buoyant bodies, characterized in that the wind energy converter is connected to ships by outriggers, in a way that allows to give the angle between outrigger and the vertical axis, in order to control the orientation of swimming. | 12-29-2011 |
20120045285 | Offshore structure - The present invention relates to an offshore structure for sealing off and/or storing temporarily oil from an offshore well, where the offshore structure is manufactured as a double walled construction, the double walls being divided into a plurality of internal compartments. The internal compartments extend over at least a part of the offshore structure's vertical axis, where the internal compartments may be in fluid communication with each other. The offshore structure is furthermore open to ambient fluid through an open top and bottom and a plurality of openings in the outer and inner wall arranged around the circumference of the offshore structure. | 02-23-2012 |
20120121340 | OFFSHORE VERTICAL-AXIS WIND TURBINE AND ASSOCIATED SYSTEMS AND METHODS - An offshore wind turbine has a vertical-axis wind turbine (VAWT) mounted on a platform. The VAWT has a vertical rotor and curved blades coupled to a gearbox and an electric generator. The VAWT can fixedly extend from the platform or may be capable of reclining on the platform either manually or automatically. The platform can be composed of modular elements coupled together. Offshore, the platform can be semi-submersible with the VAWT extending out of the water and with a counterbalance extending below the platform. Alternatively, the platform can float on the water's surface and can have several arms that extend outwardly from the VAWT to increase the platform's footprint. To anchor the turbine offshore, anchoring systems can anchor the platform to the seabed while allowing the floating wind turbine to adjust passively or actively to changes in sea level due to tidal variations or storm swells. | 05-17-2012 |
20120128433 | CONICAL PILED MONOPOD - The invention relates to a conical piled monopod which is a fixed, ice worthy structure used in cold weather offshore environments for accessing hydrocarbon deposits under the seafloor. The conical piled monopod provides a much lower cost offshore facility as compared to a very large, gravity based structure. The conical piled monopod has a base that is designed to rest on a minimally prepared seafloor and be held in a fixed locations by pilings inserted deep into the seafloor. The top deck is designed to be at least 60 feet across with a sloped or inclined perimeter surface to bend and break the ice that comes into contact with the conical piled monopod as the ice would otherwise impose significant lateral forces. | 05-24-2012 |
20120201608 | Foundation for offshore wind turbine and method and means for its transportation and installation in deepwaters - The main goal of the proposed by present invention compliant guyed tower is to increase the depth in which offshore wind turbines can be installed from present limit of 50 meters to 200+ meters. The specifics of compliant guyed towers, which are widely used by offshore oil industry for installation platforms in water depth starting from 300 meters and up to 1,000 meters, is in their long mooring lines, which have springiness that allows to mitigate dynamics of wind and waves forces acting on platforms. The length of mooring lines for wind turbines installed in the relatively shallow waters is not sufficient to have required springiness. By present invention the mooring line are attached to anchors on seabed through a pneumatic hydraulic spring, which provides to the mooring line the needed additional springiness. | 08-09-2012 |
20130309020 | METHOD OF INSTALLING A BUOY AND APPARATUS FOR TENSIONING A BUOY TO AN ANCHORING LOCATION - A method of installing a production buoy at a subsea anchoring location is disclosed. The method includes floating a production buoy over a subsea anchoring location. Then, hanging at least a tether off the production buoy such that the or each tether extends from the production buoy towards the subsea anchoring location occurs. The method includes submerging the production buoy to a depth which allows connection of the or each tether to the subsea anchoring location. An apparatus suitable for use with this method is also provided. | 11-21-2013 |
20140147217 | METHOD AND DEVICE FOR ASSEMBLING OR DISASSEMBLING A STRUCTURE UNDER WATER - A method of performing an under water operation on a structure ( | 05-29-2014 |
20140301789 | GRAVITY FOUNDATIONS FOR TIDAL STREAM TURBINES - A method for mounting a tidal turbine and an associated support structure in a river or sea bed includes mounting the tidal turbine to a support structure and mounting the support structure upon a base, the base being of such weight as to involve gravitational forces of such magnitude as to be sufficient to withstand forces acting in such manner as to tend to displace the turbine and the associated support structure. A periphery of an underside of the base is provided with expandable members, the expandable members being selectively expanded to position the base more nearly horizontal when in contact with a sea or river bed. The base is formed as a hollow shell enabling the base to be floated into position, and, when the base is in a desired position, sinking the base to the sea or river bed in a controlled manner. | 10-09-2014 |
20150308068 | FLOATING STRUCTURE FOR SUPPORTING A WIND TURBINE - The floating structure for supporting a wind turbine comprises a SPAR-type hollow precast monolithic body made of concrete prestressed by active reinforcement members having a cylindrical lower section ( | 10-29-2015 |
20150316021 | A STABILISED HYDROELECTRIC TURBINE SYSTEM - The present invention provides a hydroelectric turbine system ( | 11-05-2015 |
20190145072 | SEA WALL STRUCTURES, SEA WALLS AND METHODS OF MANUFACTURE AND ASSEMBLY OF THE SAME | 05-16-2019 |