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| Application No. | Application Title | Issue Date |
| 20120067590 | ARRANGEMENT AND METHOD FOR REGULATING BOTTOM HOLE PRESSURES WHEN DRILLING DEEPWATER OFFSHORE WELLS An arrangement and a method to control and regulate the bottom hole pressure in a well during subsea drilling at deep waters: The method involves adjustment of a liquid/gas interface level in a drilling riser up or down. The arrangement comprises a high pressure drillin... | 03/22/2012 |
| 20120043090 | IMPROVED SUBSEA RISER SYSTEM An improved riser system which comprises a connector for connecting conduits and a mooring system for mooring the connector to the floor of a body of water. The connector may include a pivoting device. The improved riser system also comprises a buoy system for supportin... | 02/23/2012 |
| 20120031620 | MARINE COMPOSITE RISER FOR STRUCTRUAL HEALTH MONITORING USING PIEZOELECTRICITY A structural health monitoring system for a marine composite riser string is provided. Each riser pipe section includes a cylindrical form having an axis and also a carbon epoxy matrix. A sensor is associated with (e.g., embedded in) and substantially circumscribes the ... | 02/09/2012 |
| 20110284235 | Safety System for Deep Water Drilling Units Using a Dual Blow Out Preventer System A dual-BOP or multi-BOP self-standing riser configuration is disclosed, including at least a riser or another similarly fixed tubular structure disposed in communication with an associated drilling vessel and a subsurface well. The system supplements the traditional mud... | 11/24/2011 |
| 20110278014 | External Jet Pump for Dual Gradient Drilling An apparatus comprises a jet pump assembly affixed to a riser string and to a blowout preventer. The jet pump assembly comprises a conduit and a sealing assembly configured to accelerate a drilling fluid's return flow by a power fluid delivered by an umbilical connected... | 11/17/2011 |
| 20110240308 | Guide Frame for Riser Tower Disclosed herein is a guide frame (10) for location at one or more points along the length of a riser tower structure (112,114). The riser tower structure is of a type that has an upper end supported at a depth below the sea surface and has a central core ... | 10/06/2011 |
| 20110226484 | CONNECTOR FOR STEEL CATENARY RISER TO FLEXIBLE LINE WITHOUT STRESS-JOINT OR FLEX-JOINT A flexible element in a basket-like structure supports a Steel Catenary Riser (SCR) on a subsurface buoy or “artificial seabed.” A riser collar transfers the tension load of riser to a compressive load on the radial bearing. Relative motion between the subsurface bu... | 09/22/2011 |
| 20110209878 | METHOD FOR LIGHTENING A RISER PIPE WITH OPTIMIZED WEARING PART A riser pipe for drilling an offshore well comprises a main tube extending the well up to a floating support, an auxiliary line being arranged parallel to main tube (4a, 4b). The auxiliary line comprises tubular sections (7a,... | 09/01/2011 |
| 20110204143 | Oil and Gas Riser Spider With Low Frequency Antenna Apparatus and Method An apparatus and methods for tracking a plurality of marine riser assets is provided. Part of a riser lifecycle monitoring system, the apparatus can include an oil and gas riser spider to connect a plurality of riser pipe sections during assembly of a riser pipe string.... | 08/25/2011 |
| 20110203804 | RISER SECTION CONNECTOR WITH FLANGES, INTERNAL LOCKING RING AND EXTERNAL LOCKING COLLAR The connector comprises a male flange 15 and a female flange 14 allowing to assemble a main tube and auxiliary line tubes 11. A locking collar 17 and a locking ring 40 assemble the male flange and the fem... | 08/25/2011 |
| 20110192611 | Riser Joint Coupling An offshore riser system has riser joints, each having a pin and a box. The pin has an external grooved profile that is engaged by a locking element carried by the box of another riser joint. An actuating ring engages with the locking element to move it into the locked ... | 08/11/2011 |
| 20110193338 | THREADED METAL PIPE A threaded metal pipe is provided which comprises a metal pipe having an inner surface, an outer surface, a first end portion and a second end portion; a metal sleeve layer disposed on an outer surface of at least one of the first end portion and the second end portion,... | 08/11/2011 |
| 20110174495 | Latch System for Friction-Locked Tubular Members A technique for securing drilling riser joints in a drilling riser string is presented. The drilling riser joints have a tubular housing that has a box configuration on one end and a pin configuration on the other end. The drilling riser string is assembled by connectin... | 07/21/2011 |
| 20110155388 | Slip Connection with Adjustable Pre-Tensioning A telescopic riser section device for a riser which is arranged to connect a wellhead to a surface vessel, the telescopic riser section being placed between the wellhead and the riser and being provided with at least one actuator arranged to apply a downward tensile for... | 06/30/2011 |
| 20110146797 | FLEXIBLE PIPE SUPPORT A method and apparatus are disclosed for supporting a flexible pipe. The method includes the steps of responsive to a change in at least one condition experienced by a flexible pipe, varying an amount of support provided at least one location on the flexible pipe.... | 06/23/2011 |
| 20110147003 | METHOD FOR SETTING UP A HYBRID TOWER IN AN EXPANSE OF WATER, HYBRID TOWER ASSOCIATED INSTALLATION FOR EXPLOITING FLUIDS A method includes the positioning of a rising column (22) in a vertical configuration and the total immersion of a buoy for retaining the rising column (22). The method includes the insertion of a male connecting member (62... | 06/23/2011 |
| 20110127041 | RISER WEAK LINK A riser weak link (10) is described. The riser weak link comprises an upper housing (16) for connecting to a riser upper section (12), a lower housing (18) for connecting to a riser lower section (14), at least one connection device fo... | 06/02/2011 |
| 20110108282 | Apparatus and Method for Managed Pressure Drilling A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and ... | 05/12/2011 |
| 20110100639 | FLOATING OFFSHORE STRUCTURE FOR HYDROCARBON PRODUCTION A floating structure includes a riser support system. The riser support system includes multiple carts, each suitable for moveably connecting a risers to the riser support system. A cart includes a support frame and one or more riser tensioners for connecting the suppor... | 05/05/2011 |
| 20110073315 | RISER PIPE WITH RIGID AUXILIARY LINES ASSEMBLED BY PINS The invention relates to a riser pipe section (1) comprising a main tube (2), at least one auxiliary line element (3) arranged substantially parallel to said tube (2), the ends of the main tube comprising connection means allowing longitudina... | 03/31/2011 |
| 20110056701 | Fluid Connection To Drilling Riser A riser for use in boring a subsea wellbore having a gooseneck assembly connected onto the riser. The gooseneck assembly has an outlet that couples with a flowline on the riser and a connector assembly that selectively decouples the gooseneck assembly from the flowline.... | 03/10/2011 |
| 20110048729 | PULL TUBE SLEEVE STRESS JOINT FOR FLOATING OFFSHORE STRUCTURE The present disclosure provides an improved design for a pull tube sleeved stress joint and associated pull tube for managing stresses on a catenary riser for a floating offshore structure. The pull tube sleeve stress joint includes at least one sleeve surrounding a len... | 03/03/2011 |
| 20110005766 | Deployment System A downhole deployment system comprises a spoolable tubular member (76) adapted to be coupled to a subsea assembly and to extend to surface level. The deployment system also comprises a spoolable support member (96) adapted to extend through the spoolable t... | 01/13/2011 |
| 20100300699 | RISER PIPE WITH ADJUSTABLE AUXILIARY LINES The riser pipe section comprises a main tube 22 and auxiliary line elements 23 arranged parallel to tube 22. The ends of the main tube comprise connectors 20a and 20b allowing longitudinal stresses to be transmitted. The ... | 12/02/2010 |
| 20100288505 | DRILLING RISER ELASTIC SWIVEL FOR BOUNDARY LAYER CONTROL The present invention relates to the marine drilling risers and other submerged hulls, and methods and apparatuses for reducing vibration and drag in the drilling risers when they are beset by ocean currents, for instance elastic swivel devices for use in orienting a ri... | 11/18/2010 |
| 20100270025 | Riser Buoyancy Adjustable Thrust Column An offshore drilling riser joint has a central riser pipe, a number of auxiliary lines mounted around it, and a buoyancy module assembly of a buoyant material. A pair of upper thrust sleeves slide over two of the auxiliary lines, each of the upper thrust sleeves having ... | 10/28/2010 |
| 20100147530 | BELLOWS TYPE ADJUSTABLE CASING A tieback connection between an offshore production platform and a wellhead on the sea floor has a riser and a tubular expandable and contractable member within the riser. The expandable and contractable member compensates for axial movement within the riser while maint... | 06/17/2010 |
| 20100147528 | Riser Centralizer System (RCS) In an offshore drilling facility, apparatus is disclosed comprising: a drilling floor centralizer for receiving the upper end of a string of drilling riser sections; a moonpool centralizer for receiving another portion of the drilling riser; and at least one roto-track,... | 06/17/2010 |
| 20100129159 | 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, th... | 05/27/2010 |
| 20090272537 | ALUMINUM RISER ASSEMBLY An aluminum riser assembly has a plurality of riser joints connectable together to form a riser string. When upper and lower joints are assembled, clamps support auxiliary pipes for carrying hydraulic lines. A drive rotates a sleeve rotatably supported on the upper join... | 11/05/2009 |
| 20090242207 | STRAKE SYSTEMS AND METHODS There is disclosed a system comprising a structural element; at least one strake holder connected to the structural element; and at least one flexible helical strake connected to the at least one strake holder.... | 10/01/2009 |
| 20090208295 | Drilling rig riser identification apparatus A riser having a riser body having an interior surface, an exterior surface, and two spaced-apart ends, at least one identification assembly on the riser body, the identification assembly having an assembly body and a wave energizable apparatus in the body, the assembly... | 08/20/2009 |
| 20090166043 | Riser Pipe with Rigid Auxiliary Lines The invention relates to a riser pipe section comprising a main tube (2), at least one auxiliary line element (3) arranged substantially parallel to said tube (2), characterized in that the ends of main tube (2) comprise connecting means (... | 07/02/2009 |
| 20090159291 | TELESCOPIC JOINT MINI CONTROL PANEL A method and apparatus for determining and reacting to an upper packer failure in a riser slip joint. An upper packer failure is determined by comparing pressures at two points in the upper packer pressure circuit using a differential pressure valve. In the event of a f... | 06/25/2009 |
| 20090078425 | FLEXIBLE HANG-OFF ARRANGEMENT FOR A CATENARY RISER Flexible hang-off arrangement is provided for a catenary riser suspended from an offshore or inshore platform, which includes floating or fixed platforms, vessels or/and buoys. The bending loads in the top segments of the said riser are reduced by incorporating a pivot ... | 03/26/2009 |
| 20090050330 | Riser Pipe with Auxiliary Lines Mounted on Journals The invention relates to a riser pipe section comprising a main tube (2), at least one auxiliary line element (3) substantially parallel to said main tube (2) and at least two fastening means (7, 8) that connect the ends of said element (3... | 02/26/2009 |
| 20080317555 | Subsea System Provided With a Controllable Curvature Flexible Pipe A curvature limiter for a hydrocarbon transferring subsea system comprising a flexible tubular member through which an intermediate portion of the flexible hydrocarbon pipe passes. The flexible tubular member comprises a plurality of successive substantially cylindrical... | 12/25/2008 |
| 20080283248 | Flexible Riser And Method for Pulling-In And Hanging Up Thereof Flexible riser, comprising
| 11/20/2008 |
| 20080223583 | FREE STANDING RISER SYSTEM AND METHOD OF INSTALLING SAME A free standing riser system includes a riser, a subsea intervention unit, and an umbilical line. The riser includes interconnected joints linked to one another, a lower-end of the riser being coupled to a wellhead and an upper-end of the riser enclosed in a buoy assemb... | 09/18/2008 |
| 20080213048 | Method for fabricating and transporting an integrated buoyancy system 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.... | 09/04/2008 |
