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| Number | Title | Issue Date |
| 7325628 | Anchor for vehicle, vehicle and anchor in combination, and method of using the anchor A seabed anchor (20) is fixed to and deployable from an ROV (10) for positively anchoring the ROV (10) to the seabed (100). The seabed anchor (20) comprises three nested telescoping tubes (26, 28, & 30). The upper end... | 02/05/2008 |
| 7293940 | Guide tube for a flexible pipe for transporting hydrocarbons A guide tube for a flexible pipe for transporting hydrocarbons comprising an internal tubular element of a substantially rectilinear section extending along an axis (A) and extended by a free section having a curvature along its length and a wall which is internal w... | 11/13/2007 |
| 7293939 | Inclined leg floating production platform with a damper plate A floating moored oilfield production structure for deepwater application. An apparatus and a method for the construction and installation of floating oilfield production structures, wherein the deck structure is supported by multiple pairs of inclined buoyant legs ... | 11/13/2007 |
| 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 |
| 7258510 | Systems and methods useful in stabilizing platforms and vessels having platforms and legs Disclosed is a system useful in stabilizing a vessel. The vessel includes, but is not limited to, a first leg, a second leg, a third leg, and a platform coupled to the first, second, and third legs. The system can include a first brace coupled to the first leg at a ... | 08/21/2007 |
| 7216516 | Wobble joint A wobble joint particularly useful for supporting a wash plate in a wash basket of an automatic washing appliance includes inner and outer races formed with mating part-spherical surfaces having common centers of curvature about a longitudinal axis of the joint. Ant... | 05/15/2007 |
| 7201624 | Mooring system A mooring system (10) is described for mooring a vessel to a floor portion of a body of water. The system (10) comprises a substantially rigid, elongate support member (12) having a connecting point (14) adjacent an upper end to which a v... | 04/10/2007 |
| 7191836 | Dry tree subsea well communications apparatus and method using variable tension large offset risers Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104). The variable tension risers (106) allow several subsea well-heads (102), in water depths from 4... | 03/20/2007 |
| 7141888 | Antirotational structures for wave energy converters A WEC includes a non-circular main central column positioned within a like non-circular central opening of a shell to contain the central column and prevent rotation or twisting of the shell relative to the column. In a particular embodiment, the central column is m... | 11/28/2006 |
| 7138038 | Expandable anode pod The present invention 10 discloses a collapsible pod for providing cathodic protection to a preferred structure 12. The present invention 10 has a top frame 20 and a bottom frame 22 with a plurality of folding leg segments 24 | 11/21/2006 |
| 7114884 | Method and apparatus for increasing floating platform buoyancy A floating platform for recovery of oil and gas from offshore oil and gas fields includes a hull having a portion located substantially below the water surface, and including a portion thereof which extends above the water surface. The platform is anchored to the se... | 10/03/2006 |
| 7104329 | Marine bottomed tensioned riser and method A new marine oil production riser system for use in deepwater applications is disclosed. An efficient means for accommodating movements of the host facility, while maintaining riser top tension within the limits for long-term riser performance. Long riser stroke len... | 09/12/2006 |
| 7008141 | Collapsible buoyancy device for risers on offshore structures Expandable and contractible buoyancy modules are assembled to the risers of a deepwater exploration spar or other offshore structure to provide an upwardly directed buoyancy force to offset at least a portion of the weight of the riser. The buoyancy modules have a f... | 03/07/2006 |
| 6979147 | Enhanced LNG tanker offloading in shallow waters A system for offloading LNG (liquified natural gas) from a tanker (26) in shallow waters, for regasing, or heating the offloaded LNG to produce gaseous hydrocarbons, or gas, for pressurizing the gas, and for flowing the gas to an onshore station (56), ... | 12/27/2005 |
| 6968797 | Method for installing a self-floating deck structure onto a buoyant substructure This invention provides a method for installing a self-floating deck structure with at least one recessed cavity on the bottom of the self-floating deck structure onto a buoyant substructure. The self-floating deck structure is aligned over a submerged buoyant subst... | 11/29/2005 |
| 6935810 | Semi-submersible multicolumn floating offshore platform A semi-submersible, multicolumn, deep draft, floating offshore oil and gas drilling and production platform comprises a floating hull having an adjustably buoyant base, a plurality of columns vertically upstanding from the base, and an equipment deck that is support... | 08/30/2005 |
| 6869325 | Rotating tower system for transferring hydrocarbons to a ship A rotating tower system for transferring hydrocarbons to a ship, comprising a transfer structure extending from the bottom (3) of the ship (1) to the deck (4) thereof, the structure at its lower end being connected to a number of risers (22 | 03/22/2005 |
| 6692190 | Articulated multiple buoy marine platform apparatus A marine platform provides a plurality of buoys, a platform having a peripheral portion that includes a plurality of attachment positions, one attachment position for each buoy, and a connection that connects each buoy to the platform at a respective atta... | 02/17/2004 |
| 6435774 | Articulated multiple buoy marine platform apparatus A marine platform provides a plurality of buoys, a platform having a peripheral portion that includes a plurality of attachment positions, one attachment position for each buoy, and a connection that connects each buoy to the platform at a respective atta... | 08/20/2002 |
| 6435773 | Articulated multiple buoy marine platform apparatus and method of installation A marine platform (and method of installation) provides a plurality of buoys, a platform having a peripheral portion that includes a plurality of attachment positions, one attachment position for each buoy, and an articulating connection that connects eac... | 08/20/2002 |
| 6428242 | Folding support for removable piers and similar structures The removable pier support system of the present invention comprises a plurality of folding pier support posts. Each post has a platform section having a horizontal base plate for supporting the post on a bed of a body of water. The base plate has a lower... | 08/06/2002 |
| 6425710 | Articulated multiple buoy marine platform apparatus A marine platform provides a plurality of buoys, a platform having a peripheral portion that includes a plurality of attachment positions, one attachment position for each buoy, and an articulating connection that connects each buoy to the platform at a r... | 07/30/2002 |
| 6220787 | Ship type floating oil production system A ship type floating oil production system for access to subsea wells through installation of surface wellheads on a ship type surface vessel on the sea comprises a cylindrical turret moored to a seabed is located within a moon pool formed in the ship typ... | 04/24/2001 |
| 5899639 | Offshore structure for extreme water depth An offshore structure used for the production of or exploration for oil or gas or for some other purpose. The configuration enables the offshore structure to be installed and removed simply and economically. A central tower is wholly or partly supported b... | 05/04/1999 |
| 5873677 | Stress relieving joint for riser A stress relieving joint for use with riser pipe in floating systems wherein a vessel is subject to variable motion caused by wind, currents, and wave action. The riser pipe has one end connectable to the sea floor and an upper portion adapted to pass thr... | 02/23/1999 |
| 5738464 | Curvature limiter for a pipe running in a marine environment Curvature limiter for a pipe running in a marine environment, more specifically a pipe riser (12) running between a sub-sea oil well (14) and a support (10) on the surface (16) of the sea. The curvature limiter (26) comprises at least two elements (28) wh... | 04/14/1998 |
| 5536117 | Offshore tower structure and method of installating the same A tower structure for offshore oil and gas fields is formed from various vertically spaced and interconnected tower sections. At least one of the tower sections is rotated about a vertical axis relative to another section so as to define a twisted portion... | 07/16/1996 |
| 5486070 | Method for conducting offshore well operations A method for conducting offshore well operations is disclosed in which a compliant platform is restrained out of its normal position substantially over a well pattern by adjusting a first lateral mooring system connecting the compliant platform to a first... | 01/23/1996 |
| 5480266 | Tensioned riser compliant tower A tensioned riser deepwater platform suitable for offshore oil and gas applications is disclosed having a foundation secured to the ocean floor, a topside facility above the ocean surface, and a vertically extending tower jacket secured to the foundation ... | 01/02/1996 |
| 5447392 | Backspan stress joint An improved support system is disclosed for providing flexibility to a restrained termination of a highly pressurized, highly tensioned tubular element which extends from a subsea facility to a compliant structure. The tubular element is provided with an ... | 09/05/1995 |
| 5447390 | Process for manufacturing a variable stiffness line and associated element A process for manufacturing a line of variable stiffness over part of the length thereof and the associated element which allows the line to have the variable stiffness thereof is disclosed. The element is integrated during the manufacturing of the line o... | 09/05/1995 |
| 5439324 | Bumper docking between offshore drilling vessels and compliant platforms A bumper system is disclosed for docking an auxiliary drilling vessel to a compliant platform through first and second pads having vertically extending, complementary outboard faces presented from the respective structures in vertically slidable abutment.... | 08/08/1995 |
| 5199821 | Method for conducting offshore well operations A method is disclosed for conducting offshore well operations from an auxiliary vessel in support of a compliant platform. The auxiliary offshore drilling vessel is docked to the compliant platform and is positioned over a selected well site for conductin... | 04/06/1993 |
| 5197826 | Offshore gas flare system Apparatus is described for flaring large amounts of natural gas at a location spaced from an offshore production platform. The apparatus includes a spar buoy structure (32, FIG. 1) anchored at a location on the order of 0.1 kilometer from the platform (12... | 03/30/1993 |
| 5195848 | Method and system for developing offshore hydrocarbon reserves A method are disclosed for establishing hydrocarbon production for offshore reservoirs in which a compliant platform is installed at a selected site, an offshore drilling vessel is docked to the compliant platform and the vessel is positioned over a selec... | 03/23/1993 |
| 5061131 | Structure and method for restraining motion of a marine structure A marine structure situated in a seabed having mooring means designed to provide resistance to the environmental forces acting on the structure. Weights are attached to the mooring means at a distance above the seabed so that the weights do not touch the ... | 10/29/1991 |
| 5044829 | Mooring system A mooring system comprising a multiple degree of freedom coupler interconnecting a floatation section and an anchoring section of a dock system. The system also comprises a drawbridge section, a gangway section and a shoreline mooring section. The multipl... | 09/03/1991 |
| 5044450 | Spar-buoy boring derrick and mooring facility A spar-buoy type boring device including a main pipe and a central pipe installed in the main pipe. The main pipe, which has a service deck at the top and a float near the top so that the float stays underneath the water, is anchored at the bottom to a si... | 09/03/1991 |
| 5044828 | Support tower for offshore well Built-up towers for offshore wells, production platforms and for microwave communications antennae, for example, are formed of triangular base members which may be made up of equilateral triangles which are arranged vertically spaced from each other and w... | 09/03/1991 |
| 5040607 | Production system for subsea oil wells A subsea structure for oil well drilling, completion and production and specially designed for utilization in water depths of 1,000 m or more. The structure includes a template having radially extending structures and which extends radially from a central... | 08/20/1991 |
