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| Number | Title | Issue Date |
| 8152414 | Device and method for suppressing vortex-induced vibrations A device and method for the reduction of vortex-induced vibration of a deepwater riser. A device for attachment to a structure, which is subject to movement relative to a fluid surrounding the structure, for reducing vortex-induced vibration effects on the structure... | 04/10/2012 |
| 8002501 | Outer device for universal inspection of risers This invention refers to a device that has a direct applicability in the oil industry, detecting on a prevention basis, failures that may be externally visualized on the walls of the risers. Externally coupled to a pipe in free catenary, called riser, the device inv... | 08/23/2011 |
| 7887262 | Attachment The present embodiments relate to various attachments for attaching together a first body and a second body of a marine structure, which marine structure is adapted to be located at least partially immersed in water, wherein at least a portion of each one of the fir... | 02/15/2011 |
| 7744313 | Fixed security barrier A barrier for stopping unwanted watercraft and subsurface intruders from entering into a port or off-shore structure is provided. In one embodiment, the invention is a barrier comprised of a vertical net structure supported from the sea floor. The barrier comprises ... | 06/29/2010 |
| 7568861 | Bend stiffener A bend stiffener to surround an end portion of an elongated, essentially cylindrical object, e.g. a flexible pipe or a cable, extending from a subsea installation to a surface vessel, and is connected to an end piece or end flange of the object at a connection to th... | 08/04/2009 |
| 7467912 | Extendable draft platform with buoyancy column strakes In an Extendable Draft Platform including a deck, a plurality of buoyancy columns installed in column wells in the deck for movement from a raised position to a submerged position, and a heave plate on the bottom of the columns, each of the columns has an upper port... | 12/23/2008 |
| 7431535 | Clamp for anchoring production tube, electrohydraulic hose and electric cable simultaneously A clamp is disclosed for use in deep sea oil exploration operations. The clamp includes a pre-formed metallic belt (12) to which a first rigid metallic curve (13) is welded. The rigid metallic curve reinforces and protects the anchorage housing of an e... | 10/07/2008 |
| 7421966 | Device for protecting dock anchor posts from ice damage A system for protecting a dock from ice damage. The system includes a circumferentially fluted, water-impermeable housing capable of longitudinal and radial expansion and contraction. The housing defines a cavity with upper and lower openings into the cavity through... | 09/09/2008 |
| 7413384 | Floating offshore drilling/producing structure A deep draft semi submersible structure wherein the semi-submersible has a center of gravity below its center of buoyancy and the structure is a floating vessel with at least three vertically oriented buoyant columns. Each of the vertically oriented buoyant columns ... | 08/19/2008 |
| 7402001 | Seafloor-surface coupling device The present invention relates to a bottom-to-surface connection device comprising at least one undersea pipe or riser (1, 1a-1b) capable of including a single float (2, 21-27), said float being connecte... | 07/22/2008 |
| 7399142 | Interactive leg guide for offshore self-elevating unit A leg guide for use in a leg of a jack up unit adapted to provide sliding guidance of the leg during vertical movement of the leg. The leg guide has a first portion contacting an edge of a leg chord and a second portion contacting a face of the leg chord along a lon... | 07/15/2008 |
| 7396189 | Cubic marine impact-absorbing structure A sacrificial impact-absorbing and energy-dissipating structure for protecting marine facilities from the destructive force of an accidental impact by a marine vessel is constructed from a plurality of inexpensive steel pipes or tubular members that are permanently ... | 07/08/2008 |
| 7393157 | Timber pile protection apparatus and method A timber pile protection apparatus includes a sleeve that has an open first end, an open second end and a peripheral wall extending between the first and second ends. The sleeve is positioned on the timber pile. The first end is positioned nearer to a bottom end tha... | 07/01/2008 |
| 7387469 | Bend stiffener A bend stiffener 2 is disclosed for preventing excessive bending of an elongate member, e.g. a marine riser, in a region where it enters a tube, e.g. an “l” or “J” tube mounted on a hydrocarbon extraction platform. The bend stiffener has an elongate s... | 06/17/2008 |
| 7380513 | Fairing for reducing watercurrent-induced stresses on a marine riser The invention relates to a rotatable fairing (1) for a marine riser (2) or other slender marine structure. The fairing (1) is arranged on the riser for reducing watercurrent-induced stresses on said riser (2), said fairing (1) havi... | 06/03/2008 |
| 7334966 | Reinforcement of tubular structures A tubular structure is reinforced or reinstated by providing a reinforcing layer in its interior in spaced relation to the existing structure so that a cavity is formed. Plastics or polymer material, preferably a compact elastomer, is injected into the cavity and cu... | 02/26/2008 |
| 7328747 | Integrated buoyancy joint A buoyancy system includes a plurality of buoyancy joints distributed along a riser system. Each joint can include a riser pipe, an external frame disposed around a riser and a vessel, and a buoyant cladding disposed between the vessel and the frame. ... | 02/12/2008 |
| 7324929 | Method and system for simulating a hydrocarbon-bearing formation The invention is a method for simulating one or more characteristics of a multi-component, hydrocarbon-bearing formation into which a displacement fluid having at least one component is injected to displace formation hydrocarbons. The first step of the method is to ... | 01/29/2008 |
| 7322307 | Buoyant bumper system A buoyant bumper system for attachment to a docking facility and cushioning a boat. The buoyant bumper system includes an elongated travel shaft for engaging the docking facility, a travel sleeve slidably carried by the travel shaft, a system float carried by the tr... | 01/29/2008 |
| 7316525 | Vortex induced vibration optimizing system There is disclosed a system comprising a structure, a vortex induced vibration monitoring system, adapted to monitor a vortex induced vibration level of the structure, a tensioner connected to the structure, and a controller adapted to calculate a tension on the str... | 01/08/2008 |
| 7300228 | Method and apparatus for preventing dock or structure piling uplift A piling anti-lift system utilizes a heat trace cable secured around a piling and extending above and below the water level of the surrounding water. An annular space is formed between the piling anti-lift system. The heated piling anti-lift system prevents the wate... | 11/27/2007 |
| 7300229 | Repair jacket for pilings and method Repair jacket is adapted for repairing or reinforcing elongate structures such as pilings, especially in marine environments. Jacket includes a cylindrical body of fiber-reinforced plastic (FRP) material that is about 0.5 to 3.5 inches greater in diameter than the p... | 11/27/2007 |
| 7287935 | Tendon assembly for mooring offshore structure An offshore system for petroleum production has a buoyant platform. A tendon assembly secures to the platform and extends down to a counterweight located near the lower end. A piling is embedded in the sea floor. A socket at the counterweight telescopingly slides ov... | 10/30/2007 |
| 7270066 | Ice breaker (variants), method and system for single-support mooring and servicing ships To ensure the possibility of offshore shipping of a liquid medium, primarily oil, from an onshore tank farm into sea-going tankers in the winter time in the ice conditions by ensuring both mooring to an offshore terminal and single-point mooring of a tanker at any t... | 09/18/2007 |
| 7261492 | Method for rapidly deploying a fabric panel edge for flood control An anchoring method of fabric panels for flood control and water control, wherein the anchoring method comprises the steps of: attaching a plurality of anchors. Each anchor has a base, a first wall and a second wall disposed on opposite ends of the base, a chamber, ... | 08/28/2007 |
| 7255517 | Ballasting offshore platform with buoy assistance A method for deploying a floating platform includes storing buoys on a hull of the platform. Tension devices are mounted to the hull, each being connected by a line to one of the buoys. The operator tows the hull to a ballast down site while the buoys are stored on ... | 08/14/2007 |
| 7231981 | Inline compensator for a floating drill rig An apparatus and method for protecting against the problems associated with heave of a floating drilling rig are disclosed. The disclosed invention is a unique inline compensator in which a plurality of cylinders housed within a tubular housing and a plurality of lo... | 06/19/2007 |
| 7222578 | Apparatus for removing attachments deposited on underwater structure An apparatus for removing attachments deposited on a surface of an underwater structure and preventing that such attachments be deposited thereafter. The apparatus is floated on the water surface or underwater and with the aid of a natural force repeatedly impinges ... | 05/29/2007 |
| 7210531 | Protective element for a riser segment A protective element for a riser segment, including an elongated buffer body, at least one foot connected with the buffer body, the at least one foot being provided with an engagement part arranged to engage on a main pipe of a riser segment, the distance between th... | 05/01/2007 |
| 7163062 | Riser A riser for conveying fluids from a subsea location to a surface vessel comprises an upper section which is located in a confining conduit, said upper section being allowed to deform elastically into a helical configuration against the inside of the confining condui... | 01/16/2007 |
| 7159526 | Retractable bumper system and method A retractable boat bumper system includes a bumper plate and a positioning mechanism. The bumper plate is selectively operated between a first, retracted position wherein the bumper plate is proximate the boat and a second, extended position wherein the bumper plate... | 01/09/2007 |
| 7150241 | Device for protecting dock anchor posts from ice damage A system for protecting a dock from ice damage. The system includes a circumferentially fluted, water-impermeable housing capable of longitudinal and radial expansion and contraction. The housing defines a cavity with upper and lower openings into the cavity through... | 12/19/2006 |
| 7140599 | Coupling systems and methods for marine barriers A marine barrier system comprising first and second barrier sections and a coupler system. The first and second barrier sections comprise first and second main flotation members, respectively, and each main flotation member contains buoyant material. The coupler sys... | 11/28/2006 |
| 7134809 | Offshores structure support A pile based braced caisson structural support device includes a number of legs. These legs are configured in a teepee type configuration such that the footprint of the base is larger than the footprint of the opposing end. This structural support can be used as a b... | 11/14/2006 |
| 7128159 | System and method for limiting vortex-induced vibrations on an offshore production riser The present invention relates to a method and to a system for limiting vortex-induced vibrations on a riser suspended at one end from a support and subjected to substantially transverse fluid flows. The system comprises suspension means (10) for hanging the r... | 10/31/2006 |
| 7124699 | Portable dock cleat This invention was developed to provide a temporary and portable device for tying up a boat at a convenient and safe point of attachment on a dock structure, where no permanent point of attachment currently exists. It primarily comprises a strong, flexible strap tha... | 10/24/2006 |
| 7121767 | Rugged foam buoyancy modules and method of manufacture A buoyancy module comprises a multi-layer outer protective shell that has an exterior surface and an interior surface. A first layer of foam buoyancy material is located adjacent to the interior surface. A second layer of foam buoyancy material that includes macrosp... | 10/17/2006 |
| 7114885 | Protection means for a flexible riser The invention relates to flexible risers for transfer of hydrocarbons between a sea bed installation and a vessel (10) floating at the sea surface. The riser (18) is provided with means (20) for protecting the riser (18) from impacts. The... | 10/03/2006 |
| 7108457 | System and method for reducing drag and vortex induced vibration in marine applications A marine riser that includes active boundary-layer control (“BLC”) for reducing hydrodynamic drag and vortex-induced-vibration (“VIV”) caused by currents. The marine riser includes at least one riser pipe surrounded by a BLC sheath. Extending through the she... | 09/19/2006 |
| 7104219 | Piling decontamination and marine life enhancement system A marine habitat enhancement system is provided that in one embodiment is configured for attachment to existing pilings and in another embodiment is a stand-alone system anchored to the soil. The system includes a housing formed of a plurality of panels configured f... | 09/12/2006 |
