| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166352000 | Surface vessel | 82 |
| 20080230228 | System and Method For Well Intervention - A system and method is described for well intervention in subsea installed oil and gas wells, comprising a surface vessel ( | 09-25-2008 |
| 20100071906 | SYSTEM AND METHOD FOR SIMULTANEOUS SEA DRILLING OPERATIONS - A system and method for carrying out simultaneous operations of assembling, dismantling, and maintaining equipment installed by an oil rig, using the tools, systems, and the areas available on the rig itself. The system includes two parallel and separated sustaining beams and two mobile bases supported on the beams to carry out the simultaneous operations. This system allows a method for simultaneously assembling two items of subsea equipment which are to be installed to be performed. Also, this system allows a method for simultaneously replacing and assembling subsea equipment to be performed. Additionally, the equipment can be lowered or recovered using either a derrick and pipe string or a winch and steel cable. | 03-25-2010 |
| 20100108322 | PARALLEL DRILLING AND COMPLETION FOR A DRY TREE FLOATING PRODUCTION FACILITY - Field development drilling and completion/production work are performed from a floating facility having a deck with a moon pool and a well bay, a first drilling rig fixed to the deck over the moon pool, and a second drilling rig movably mounted on the deck over the well bay. In use, the facility is positioned in a first position for field development drilling by the first drilling rig through the moon pool at a first well location. The facility is moved to a second position for field development drilling by the first drilling rig through the moon pool at a second well location. During the field development drilling at the second well location, the facility is moved so that the first well location is accessible through the well bay. Well completion/production work is performed at the first well location through the well bay with the second drilling rig. | 05-06-2010 |
| 20100116507 | MOBILE EQUIPMENT FOR RISERLESS DRILLING, WELL INTERVENTION, SUBSEA CONSTRUCTION AND THE LIKE FROM A VESSEL - A mobile equipment for riserless drilling, well intervention, subsea construction and the like from a dynamic positionable vessel having a moonpool ( | 05-13-2010 |
| 20100175884 | Offshore gas recovery - During an Extended Well Test or Early Floating Production at an offshore hydrocarbon production site, where oil and gas hydrocarbons are produced by a production vessel, applicant stores the natural gas as pressured gas in a storage tank and occasionally transfers the pressured gas to a shuttle vessel which carries the gas to a site where it is used, as by pumping it into a natural gas pipeline. The transfer of natural gas to the shuttle can be accomplished by pumping it through a conduit extending between the vessels to a second tank on the shuttle, or can be accomplished by moving a gas-filled tank on the production vessel to the shuttle. | 07-15-2010 |
| 20100300697 | INSTALLING AN EXPANDABLE TUBULAR IN A SUBSEA WELLBORE - A method and vessel for installing an expandable tubular in a subsea wellbore, wherein said expandable tubular is assembled from expandable tubular segments, said expandable tubular being adapted to be expanded diametrically when positioned in said wellbore by means of expansion tooling,
| 12-02-2010 |
| 20110067881 | SYSTEM AND METHOD FOR DELIVERING MATERIAL TO A SUBSEA WELL - A system and method for delivering a material from a vessel at a surface facility to a subsea location and into a subsea well are provided. The system generally includes a first-stage pump that is located at the surface facility and is configured to receive the material from the vessel. A tubular member extends from the first-stage pump to the subsea location. A second-stage pump is located at the subsea location and connected to the tubular member. The first-stage pump is configured to deliver the material through the tubular member to the second-stage pump at a first pressure, and the second-stage pump being configured to receive the material from the tubular member and inject the material into the well at a second pressure higher than the first pressure. | 03-24-2011 |
| 20120103623 | TUBULARS STORAGE AND HANDLING SYSTEM - A hydrocarbon drilling tubulars storage and handling system, said system comprising: —first and second rotary storage racks, each rotary storage rack being rotatable about a vertical axis and having storage slots for storage of multiple tubulars in each rotary storage rack in vertical orientation, the first and second rotary storage rack each including a drive to rotate the storage rack about its vertical axis, —a tubulars racking device positioned between the first and second rotary storage racks, said racking device including a rotary structure that is rotatable about a vertical axis and a drive to rotate the rotary column structure about said vertical axis, the rotary structure supporting at a first side thereof a first tubular racker assembly and at a second side thereof a second tubular racker assembly, each tubular racker assembly including one or more one gripping members adapted to grip a tubular. | 05-03-2012 |
| 20120234552 | Systems and Methods for Harvesting Natural Gas from Underwater Clathrate Hydrate Deposits - A system for harvesting natural gas from a clathrate deposit includes a storage system and a processing system. The storage system is located at a surface of a body of water and is configurable to couple to a conduit for receiving a slurry including clathrate hydrate pieces and natural gas from an underwater apparatus. The processing system is coupled to the conduit and is configured to separate the natural gas from the slurry. | 09-20-2012 |
| 20120292041 | FLOATING VESSEL FOR SUPPORTING WELL HEAD SURFACE EQUIPMENT - One or more embodiments of a floating vessel for supporting well head surface equipment that has a deck operatively disposed on the floating vessel. The floating vessel can include a ram tensioner system positioned between the well head surface equipment and the deck. The ram tensioner system can include push up ram style tensioner system with a deck mountable frame having an upper portion and a lower portion connected by a plurality of cylinder sleeves and at least one guide post sleeve. | 11-22-2012 |
| 20120305260 | Emergency salvage of a crumbled oceanic oil well - Oceanic petroleum oil wells, though evolving over decades in technology, catastrophic events with mortality and morbidity, and damage to the aquatic and terrestrial ecosystem are still threats to any ventures in this intriguing avenue. | 12-06-2012 |
| 20120305261 | DRILLING INSTALLATION - A drilling installation for drilling a well, for example an oil, a gas, or a thermal well, includes a tower structure, a first hoisting device adapted to manipulate a first object in a first firing line in the longitudinal direction of the tower structure, a second hoisting device adapted to manipulate a second object in a second firing line in the longitudinal direction of the tower structure, a storage device for vertically storing tubular elements, such as joined tubulars, and a first pipe racker for moving tubular elements between the storage device and the first firing line. The first and second firing line are located outside the tower structure. | 12-06-2012 |
| 20130105168 | Telescopic Elevator Bail, Vessel Comprising Such the Elevator Bail and Method of Using the Elevator Bail | 05-02-2013 |
| 20130192844 | PASSIVE OFFSHORE TENSION COMPENSATOR ASSEMBLY - A tensions compensator assembly for a slip type joint in an offshore work string. The assembly includes a chamber at the joint which is constructed in a manner to offset or minimize a pressure differential in a production channel that runs through the work string. Thus, potentially very high pressures running through the string are less apt to prematurely force actuation and expansiveness of the slip joint. Rather, the expansive movement of the joint is more properly responsive to heave, changes in offshore platform elevation and other outside forces of structural concern. | 08-01-2013 |
| 20130277062 | DAMPER STRUCTURE FOR A SEALED DERRICK - Provided is a damper structure for an enclosed derrick, which can constantly compensate and maintain a pressure of an inner space of an enclosed derrick structure. The damper structure for the enclosed derrick includes: one or more communication ducts installed in a side of the enclosed derrick; and one or more open/close dampers coupled to the communication ducts to open or close the communication ducts, whereby air is selectively supplied to or exhausted from the enclosed derrick. | 10-24-2013 |
| 20130284450 | DRILLING INSTALLATION AND OFFSHORE DRILLING VESSEL WITH DRILLING INSTALLATION - A dual firing line drilling installation has a drilling tower main structure with four frameworks that are each over a major portion of their height U-shaped in horizontal cross-section. A four-sided central ( | 10-31-2013 |
| 20130292131 | DAMPING APPARATUS FOR MOONPOOL - Provided is a damping apparatus for a moonpool, which has a simple driving mechanism. The damping apparatus includes one or more damping plates which cover a moonpool of a hull entirely or partially. The damping plates are pivotally hinged to a sidewall of the moonpool, and one or more conveying units are disposed above the moonpool to convey drilling equipment. Driving wires are coupled between the conveying units and the damping plates, and the conveying force of the conveying units is transferred through the driving wires to the damping plates. Thus, the damping plates are pivoted to open and close the moonpool entirely or partially. | 11-07-2013 |
| 20140151057 | DRILLING VESSEL - A drilling vessel with a drilling deck includes a drilling vessel floor structure defining the drilling deck and a tubular support assembly that is recessed in the drilling floor structure. The assembly includes a support frame and at least two support tables, wherein the tables have a top surface that forms part of the drilling deck. The tables are each guided by the support frame to allow displacement along a line between an active position for supporting a tubular and a retracted position for passing an object. The tables and the adapters segments supported thereby are coupled, for example via a clamp or a shape-coupling, such that when the tables move from their active position into their retracted position each segment moves with the respective table it is coupled with and the bushing is opened up for passing through an object through the opening between the at least two support tables and the adapter segments they support. | 06-05-2014 |
| 20140216752 | Apparatus and Methods for Providing Tubing into a Subsea Well - In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector and at least one underwater injector. The surface injector is adapted and arranged to control the movement of the tubing into and out of the underground well below the sea floor during normal operations. At least one surface injector and/or underwater injector is arranged and adapted to maintain the tubing in substantial tension between the surface and underwater injectors. | 08-07-2014 |
| 20140338919 | Multiple Flexible Seafloor-Surface Linking Apparatus Comprising At Least Two Levels - A bottom-to-surface connection installation between a common floating support and the sea bottom, having a plurality of flexible lines such as flexible pipes extending between said floating support and the sea bottom. The flexible lines are supported by respective ones of a plurality of troughs each trough lying between two pipe portions defining a first flexible line portion in a hanging double catenary configuration between the floating support and the trough, and a second flexible line portion in a single catenary configuration between the trough and the point of contact of the flexible pipe with the sea bottom. The installation has at least one support structure having a base-forming bottom portion resting on and/or anchored to, or embedded in the sea bottom and a top portion supporting at least two troughs, respectively a bottom trough and a top trough, the troughs being arranged at different heights in such a manner that the low point of the first flexible line portion passing via the bottom trough is situated below the low point of the first flexible line portion passing via the top trough. | 11-20-2014 |
| 20150083432 | Triple Activity Drilling Ship - A triple activity drilling ship may be provided with two separate drilling centers, each including drilling apparatus. In addition, a trolley that is capable of supporting tubulars may be positioned between a first position within one of said drilling centers and a second position outside that drilling center. As a result, the trolley may be used to hold assembled tubulars while other activities are ongoing in one or more of the drilling centers. | 03-26-2015 |
| 20150136410 | VESSEL FOR PRODUCING HYDROCARBONS PROVIDED WITH MEANS FOR SEPARATION OF HYDROCARBONS INTO GASEOUS HYDROCARBONS AND NON GASEOUS HYDROCARBONS AND A METHOD FOR OPERATING SUCH A VESSEL - A vessel for producing hydrocarbons, the vessel being adapted to be connected to at least one riser for transport of the hydrocarbons from a well on the seabed towards the vessel, wherein the vessel includes a separation station for separation of the hydrocarbons into gaseous hydrocarbons and non-gaseous hydrocarbons, storing elements for storing the hydrocarbons and processing elements for processing at least part of the hydrocarbons. The vessel further includes a positioning system for controlling the position and orientation of the vessel with respect to the seabed, wherein the positioning system includes a Dynamic Positioning (DP) system allowing the control of the position and the orientation of the vessel with respect to the seabed without the use of mooring lines, wherein the DP system is adapted to be driven by at least a portion of the gaseous part of the hydrocarbons separated in the separation station. | 05-21-2015 |
| 20160075414 | SUBSEA WELLBORE OPERATIONS VESSEL | 03-17-2016 |
| 20160090794 | DUAL ACTIVITY OFF-SHORE DRILLING RIG - An offshore drilling rig configured for lowering and/or raising a string of tubular equipment into a subsea borehole. The drilling rig includes a drill deck; a first hoisting system being adapted for raising or lowering a first load carrier along a vertical first hoisting axis, wherein the first hoisting system is supported by a first support structure extending upwardly relative to the drill deck; a second hoisting system being adapted for raising or lowering a second load carrier along a vertical second hoisting axis located apart from the first hoisting axis, wherein the second hoisting system is supported by a second support structure extending upwardly relative to the drill deck; and a joint operations well centre on the drill deck. During joint operations, the first and second hoisting axes are preferably located apart from the joint operations well centre. | 03-31-2016 |
| 20160153245 | OFFSHORE DRILLING VESSEL | 06-02-2016 |
| 20160177631 | WELL INTERVENTION MONOHULL VESSEL | 06-23-2016 |
| 20160376855 | FLUID CONDUIT CONNECTION SYSTEM - A fluid conduit connection system includes a bearing assembly comprising a bearing pipe comprising a fluid flow path, and a bearing element stack located exterior to the bearing pipe and disposed substantially annularly about the bearing pipe, wherein the bearing element stack is configured to receive a compressive force from the bearing pipe and wherein the bearing element stack is configured to allow rotation of the bearing pipe about a center of rotation of the bearing assembly. | 12-29-2016 |
| 166353000 | Having means to move vessel to precise location | 2 |
| 20110180266 | DRILL SHIP FOR DEEP SEA INTERVENTION OPERATIONS - A drill ship is provided for conducting subsea operations, including intervention, maintenance and workover operations. The ship includes a hull having a substantially wide beam-to-length ratio and a deckspace. An automated system for handling tubulars and risers is mounted to the deck space, along with a pipe racking system. The deckspace includes a heavy-lift heave crane for handling seafloor operations and a medium duty crane mounted over the deckspace. The ship is configured to provide heavy lift subsea construction operations including 16-inch riser well intervention and workover programs, connected riser completion operations, and riserless tophole drilling and casing operations. The ship is also able to perform connected riser remedial drilling and slim hole well construction. The ship maximizes environmental efficiency in both construction and use, and provides a stable and safe work and living environment for operations personnel. | 07-28-2011 |
| 20120325489 | APPARATUS AND METHODS FOR USE IN ESTABLISHING AND/OR MAINTAINING CONTROLLED FLOW OF HYDROCARBONS DURING SUBSEA OPERATIONS - Apparatus includes a seal head having first and second ends and a sidewall having an internal diameter. The first end of the seal head is open to the environment, and the second end is closed to the environment by an end cap. The seal head includes an aperture configured to accommodate a subsea source. A tubular seal head extension is fluidly connected to the seal head end cap. The seal head extension has an external diameter, an external surface, and a length. A movable element having first and second ends and a sidewall structure having an internal diameter sufficiently larger than the external diameter of the extension forms an annulus between the movable element and the extension. The movable element first end opens to the environment, while its second end is closed by an end cap defining an exit fluidly connectable to a subsea collection system. | 12-27-2012 |
| 166354000 | Having means to hold vessel at given location (e.g., anchor, etc.) | 2 |
| 20080277123 | Offshore Vessel Mooring and Riser Inboarding System - There is disclosed an offshore vessel mooring and riser inboarding system ( | 11-13-2008 |
| 20150129237 | FPSO Field Development System for Large Riser Count and High Pressures for Harsh Environments - In an offshore production system, a semisubmersible supports the risers and provides the service requirements for the wells, while an associated FPSO provides the processing functions and storage of the produced hydrocarbons. As a result, a greater number of risers can be supported in a harsh environment while the turret and swivel requirements of the system are significantly reduced. | 05-14-2015 |
| 166355000 | With means to compensate for vessel movement | 51 |
| 20080251257 | Multipart Sliding Joint For Floating Rig - A system for interconnecting a floating rig and a riser assembly includes a rotating control device permitting pressurization of the riser assembly; and a sliding joint connected to the rotating control device, the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized. Another system includes a sliding joint including more than two telescoping sleeves, and the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized at the surface. An apparatus includes a sliding joint with multiple sets of telescoping sleeves, each set including at least two of the sleeves. Another apparatus includes a sliding joint with multiple radially overlapping seal assemblies. | 10-16-2008 |
| 20080251258 | Tubing Support Assembly, Vessel And Method Of Deploying Tubing - There is disclosed a tubing support assembly for supporting tubing utilised in the oil and gas exploration and production industry, a vessel including such a tubing support assembly, and a method of deploying such tubing from a vessel. | 10-16-2008 |
| 20080271896 | Device in Connection with Heave Compensation - The present invention relates to a heave compensator for a riser, particularly a working riser ( | 11-06-2008 |
| 20090000788 | Heave Compensated Snubbing System and Method - A heave compensation system that facilitates the transfer of pipe between a floating platform and a snubbing jack. The heave compensation system includes a first end connected to the floating platform and a second end in connection with a traveling slip assembly of the snubbing jack, the heave compensation system is operable between a disengaged position and an engaged position. When the heave compensation system is in the disengaged position the traveling slip assembly moves separate and independent from the movement of the floating platform, and when the heave compensation system is in the engaged position the traveling slip assembly is locked in a constant position relative to the floating platform. | 01-01-2009 |
| 20090133881 | HEAVE MOTION COMPENSATION - A heave motion compensator ( | 05-28-2009 |
| 20090145611 | TENSIONER ANTI-ROTATION DEVICE - A tensioner anti-rotation device and method that transfers rotational force from an offshore platform deck to a riser in response to waves and currents. The device includes a bracket mounted on the deck, and a rib that transfers force from the deck through the bracket, to the rib, and into the riser such that the tensioners on the riser are not subjected to torque. | 06-11-2009 |
| 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 failure of the upper packer, a secondary pressure source is used to energize a lower packer in the riser slip joint. | 06-25-2009 |
| 20090255683 | LANDING STRING COMPENSATOR - The present invention generally relates to an apparatus and method for compensating a landing string due to movement of a floating rig platform. In one aspect, a compensation system for use with a landing string is provided. The compensation system includes a slip joint member attachable to the landing string, the slip joint member having an upper portion and a lower portion. The compensation system further includes a first lock assembly configured to connect the upper portion of the slip joint member to a floating rig. Additionally, the compensation system includes a second lock assembly configured to connect the lower portion of the slip joint member to a riser disposed below the floating rig. In another aspect, a method for compensating a landing string due to movement of a floating rig is provided. | 10-15-2009 |
| 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, removably and rotationally carried by at least one of the pin end of one drilling riser section and the box end of the adjacent drilling riser section, for extending the outer diameter of each of the adjacent ends to the outer diameter of the adjacent drilling risers sections intermediate the ends of the drilling riser sections. | 06-17-2010 |
| 20100147529 | Systems and Methods for Controlling Risers - Systems and methods for controlling movement of an elongated member providing communication between a vessel and a subsea unit are provided. The method can include connecting a positively buoyant member to an elongated member at a first location and connecting a negatively buoyant member to the elongated member at a second location, wherein at least a portion of the negatively buoyant member rests on a seabed when the elongated member is in an operational null position. | 06-17-2010 |
| 20100300698 | WIRED SLIP JOINT - Embodiments of the invention disclose systems, apparatuses, and methods of measurement performed by pipe conveyed tools. In an embodiment, a system for evaluation of a well bore includes a drill string assembly comprising a plurality of pipe joints, a wired slip joint coupled to the plurality of drill pipe, the slip joint movable from a retracted position to an extended position to compensate for changes in length of the drill string, the extended position having a length greater than the retracted position; a sensor positioned in the slip joint, wherein the sensor detects a change in length of the slip joint and generates a signal representative of a position of the slip joint, and a communication system to transmit the signal from the slip joint to a surface processor. | 12-02-2010 |
| 20100326667 | PRODUCTION OF HYDROCARBONS - The present invention relates to a floating production platform for oil and/or gas production in a marine environment, the floating production platform comprising:
| 12-30-2010 |
| 20110005768 | Method and apparatus for motion compensation during active intervention operations - This patent application applies to an Active Motion Compensation system for use during intervention or other work on subsea wells, pipelines or other structures. It could be used on existing floating production platforms such as Tension Leg Platforms (TLP) and Spar structures where intervention work including Coiled Tubing, Slickline, Electric Line, Wireline, as well as snubbing or Hydraulic Workover activities are being utilized. It could also be deployed over the side of or through the moon pool of a vessel without the need of any other compensation device. | 01-13-2011 |
| 20110186301 | SUBSEA STRUCTURE INSTALLATION OR REMOVAL - There is disclosed a system comprising a subsea structure; and a carrier comprising an opening adapted to receive the subsea structure. | 08-04-2011 |
| 20120018166 | Vessel For Operating On Underwater Wells And Working Methods Of Said Vessel - A vessel for operating on underwater wells has a deck; a moon pool extending through the deck; a further deck elevated above the moon pool and having a hole; and a compensation unit, which is mounted on the deck above the moon pool, is arranged between the deck and the further deck, and is provided with a frame sliding along the deck, a support carrier moveable with respect to the frame in a direction substantially vertical and suitable to support items, and a driving assembly connecting the support carrier to the frame and suitable to be selectively set so as to displace in the direction the support carrier either in a heave compensation mode or in a elevator mode. | 01-26-2012 |
| 20120031622 | Trigger Joint - The present invention regards a joint for use in a riser ( | 02-09-2012 |
| 20120132435 | Downhole Intervention - The present invention is directed to novel methods and apparatus for the design, installation, use, recovery, and reuse of a Self Supporting Riser (SSR) for wells that are not under a platform. The SSR of the present invention uses standardized joints that can be recovered, potentially warehoused, and recombined in different configurations for different purposes or locations. Emphasis is on methods and apparatus that use relatively small vessels subject to high motions in the use and recovery of the SSR, especially the methods, apparatus and vessel for downhole intervention and work over through a SSR. | 05-31-2012 |
| 20120160508 | TELESCOPIC RISER JOINT - Telescoping riser arrangement forming part of a riser string ( | 06-28-2012 |
| 20120205118 | WORKOVER RISER COMPENSATOR SYSTEM - A tensioning apparatus for applying a substantially constant tension to a workover riser ( | 08-16-2012 |
| 20120217016 | RISER TENSIONER - An apparatus for tensioning a marine riser comprising a support for a number of actuators, where the support is connected to a vessel's structure, and where each actuator is connected to the support and to a marine riser, and where elements of the riser tensioner apparatus are enclosed. | 08-30-2012 |
| 20120227976 | Offshore Well Intervention Lift Frame And Method - An improved motion compensator device that includes a compensated framework for various types of well intervention operations where a stable work area is required that is stationary to the sea bed and equipment in the annulus. The device is intended for use on offshore drilling vessels that are primarily either moored or dynamically positioned and therefore subject to the motions created by the sea. The device is designed to compensate for the vertical motion of the rig by means of two steel frame assemblies, pneumatic compensating cylinders, and a load and motion transfer apparatus. | 09-13-2012 |
| 20120241163 | MANAGED PRESSURE DRILLING WITH RIG HEAVE COMPENSATION - A method for maintaining pressure in a wellbore drilled from a drilling platform floating on a body of water includes pumping fluid at a determined flow rate into a drill string disposed in a wellbore and measuring fluid pressure within a fluid discharge line of fluid returning from the wellbore. The fluid discharge line has a variable length corresponding to an elevation of the floating platform above the bottom of the body of water. The wellbore pressure is determined at a selected depth in the wellbore or at a selected position along a drilling riser or variable length portion of the fluid discharge line using known parameters/methods. The determined wellbore pressure is adjusted for changes in length of the fluid discharge line corresponding to changes in the elevation of the floating platform relative to the bottom of the body of water. | 09-27-2012 |
| 20120241164 | Method for Motion Compensation During Active Intervention Operations - An Active Motion Compensation system for use during intervention or other work on subsea wells, pipelines or other structures. The present invention can be employed on existing floating production platforms such as Tension Leg Platforms (TLP) and Spar structures where intervention work including Coiled Tubing, Slickline, Electric Line, Wireline, as well as snubbing or Hydraulic Workover activities are being utilized. It can also be deployed over the side of or through the moon pool of a vessel without the need of any other compensation device. | 09-27-2012 |
| 20120247783 | RISER TENSIONER SYSTEM - A riser tensioner system maintains a tensile force in a riser having an axis and extending from a subsea wellhead assembly through an opening in a floating platform deck. The tensioner includes a plurality of tensioner legs having lower ends mounted to the deck, and upper ends having slots formed therein to receive leg attachment plates having an opening therein through which a tubular support ring passes. A plurality of cylinders extend between the tubular support ring and a tensioner ring and couple to the support ring with cylinder attachment plates through which the tubular support ring passes. An upper end of each cylinder pivots about the mounting point, and a lower end of each cylinder adjustably mounts to the tensioner ring. | 10-04-2012 |
| 20120292042 | RAM TENSIONER SYSTEM - A ram tensioner system with a deck mountable frame having an upper portion and a lower portion connected by a plurality of cylinder sleeves and at least one guide post sleeve. A guide post engages the guide post sleeves, and an individually replaceable modular cylinder is in each cylinder sleeve along with at least one individually removable seal gland that is lubricated by a hydraulic power unit, and a slidable rod engaging each of the cylinders. The slidable rods can be attached to the tension deck with a tension ring to engage a riser and provide movable tension to the riser. | 11-22-2012 |
| 20130098627 | Method and Apparatus for Drilling Multiple Subsea Wells From an Offshore Platform at a Single Site - A floating, offshore drilling and/or production platform is equipped with a rail-mounted transport system that can be positioned at a plurality of selected positions over the well bay of the vessel. The transport system can move a drilling riser with a drilling riser tensioner system and a blowout preventer from one drilling location to another without removing them from the well bay of the vessel. Using the transport system, the drilling riser is lifted just clear of a first well head and positioned over an adjacent, second well head using guidelines. The transport system may then move the upper end of the drilling riser (together with its attached tensioner and BOP) to a second drilling location. A dummy wellhead may be provided on the seafloor in order to secure the lower end of the drilling riser without removing it from the sea while production risers are being installed. | 04-25-2013 |
| 20130161023 | Standalone Liquid Level Sensing Apparatus for Tensioner System - A riser tensioner has a cylindrical barrel and a piston rod that telescopingly engage each other. An external accumulator containing a hydraulic fluid and a gas is mounted outside of the barrels for communicating the hydraulic liquid to an end of the barrel. Depending on the stroke of the piston rod, the liquid level in the accumulator will fluctuate and the gas pressure vary. A composite rod within the accumulator is embedded with an array of PVDF sensors. The PVDF sensors provide an output signal to indicate the liquid level in the accumulator when the liquid comes in contact with the sensor, allowing for reliable monitoring of liquid levels. | 06-27-2013 |
| 20130248197 | MULTIPART SLIDING JOINT FOR FLOATING RIG - A system for interconnecting a floating rig and a riser assembly includes a rotating control device permitting pressurization of the riser assembly; and a sliding joint connected to the rotating control device, the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized. Another system includes a sliding joint including more than two telescoping sleeves, and the sliding joint being longitudinally extendable and compressible while the riser assembly is pressurized at the surface. An apparatus includes a sliding joint with multiple sets of telescoping sleeves, each set including at least two of the sleeves. Another apparatus includes a sliding joint with multiple radially overlapping seal assemblies. | 09-26-2013 |
| 20130312978 | Self-Adjusting Riser Centralizer - A riser tensioner assembly for supporting risers on an offshore drilling platform includes a frame assembly and a plurality of riser centralizers circumferentially spaced about the frame assembly. The riser centralizers each include a clevis supporting roller for bearing on a riser to limit lateral movement of the riser with respect to the frame assembly. The clevis includes an elongated channel along which the roller is movable to accommodate angular movement of the riser with respect to the frame assembly. | 11-28-2013 |
| 20130312979 | HEAVE COMPENSATING SYSTEM - A heave compensating system for a marine vessel includes a hydraulic machine configured to be coupled to a load suspended from the vessel and to vary the distance between the load and the vessel in response to heaving motion of the vessel. The system further includes a second hydraulic machine in fluid communication with a hydraulic accumulator, both the first and second hydraulic machines are mechanically connected to one another and a shared electric motor, and a controller configured to control hydraulic movement of the first and second hydraulic machines and to control the supply of power to the electric motor. | 11-28-2013 |
| 20140034329 | Backup Heave Compensation System and Lifting Arrangement for a Floating Drilling Vessel - A backup heave compensation system and an associated lifting arrangement are for a floating drilling vessel comprising a rig structure with a primary heave compensation system. The backup heave compensation system comprises: a vertically extendable and retractable lifting arrangement; a hydraulic system operatively connected to said lifting arrangement; and a control system operatively connected to said lifting arrangement and hydraulic system for selective control and operation thereof. The lifting arrangement comprises: a rigid frame structure comprised of: at least two vertically extending cylinders; a first transverse element connecting first end portions of said cylinders; and a second transverse element connecting second end portions of said cylinders; and a portal structure comprised of: at least two vertically extending piston rods having first end portions provided each with a piston; and a transverse portal element connecting second end portions of said piston rods. Each piston is movable within a corresponding cylinder. | 02-06-2014 |
| 20140069658 | Floating Structure and Riser Systems for Drilling and Production - An offshore well system for a subsea well, including a floating platform, a drilling riser system connected with the well for drilling operations, and a production riser system connected with the well for production operations. The drilling system also includes a riser tension system. The riser tension system is capable of compensating for movement of the platform while adequately tensioning both drilling riser system and the production riser system when each are connected to the well. | 03-13-2014 |
| 20140138096 | SLIP JOINT AND METHOD OF OPERATING A SLIP JOINT - A slip joint ( | 05-22-2014 |
| 20140151058 | Marine Riser with Side Tension Members - A marine riser includes a plurality of central pipes assembled end to end to form a main conduit. A plurality of tension members runs the length of the main conduit. The tension members are coupled to the main conduit to support and constrain an axial motion of the main conduit. | 06-05-2014 |
| 20140166297 | TENSIONER LATCH WITH SLIDING SEGMENTED BASE - A tensioner assembly for applying tension to a tubular member, such as a riser, can include an upper latch connected to the tubular member, a platform with a bore, and a lower latch ring. After applying tension to the tubular member, the lower latch ring can be closed around the tubular member so that when the tension is released, the upper latch lands on and engages the lower latch. The assembly can include a locking mechanism that prevents axial movement of the upper latch, relative to the lower latch, after engagement. The upper latch can self-center on the lower latch as it is moved into the latching position. | 06-19-2014 |
| 20140231091 | SYSTEMS FOR STABILIZING OILFIELD EQUIPMENT - An apparatus for stabilizing a conduit, such as a riser, against motion. The apparatus comprises an outer wall portion, an inner tubular member having a longitudinal channel extending therethrough, a first tubular member at least partially located between the outer wall portion and the inner tubular member, and a second tubular member at least partially located between the outer wall portion and the inner tubular member. The outer wall portion at least partially surrounds the inner tubular member and the first and second tubular members are movable about the inner tubular member and are movable relative to each other. The first and second tubular members are adapted for securing to the conduit, such as a riser. | 08-21-2014 |
| 20140238685 | LOCKING MECHANISM - A device for heave compensation of a tool unit that is suspended via one or more wires from a mast mounted on a platform, each wire at a first end being attached to the mast via an attachment and running via a first heave compensation unit, and each wire at a second end being attached to a second heave compensation unit that is connected to the tool unit. The second heave compensation unit includes a movable compensation mechanism, which at its first end is attached to the wire and which at its second end is attached to the tool unit. The second heave compensation unit includes a releasable locking device with which the motions of the compensation mechanism can be selectively prevented and allowed. | 08-28-2014 |
| 20140246203 | COMPENSATOR - A motion compensation system is provided for controlling relative movements between a floating vessel and an elongate element, where the elongate element is suspended by the vessel at a first end and extends into a body of water below the floating vessel. An active motion compensator is connected to the elongate element first end via an element arranged in an upper region of an erect support structure and a passive motion compensator is connected to the elongate element first end via the element. The motion compensators are structurally and operationally separate and independent units and are configured for separate and mutually independent operation. | 09-04-2014 |
| 20150096761 | OFFSHORE VESSEL AND METHOD OF OPERATION OF SUCH AN OFFSHORE VESSEL - The present invention relates to an offshore vessel capable of installing and removing a subsea well control device and a riser string, the vessel comprising a hoisting device comprising a travelling block for connecting a load, which travelling block is displaceable along a firing line which extends through a moonpool and a heave compensation system. The vessel further comprises a working deck supported by the hull of the vessel which covers at least a portion of the moonpool to allow the assembly of a riser string, wherein said working deck is provided with a riser string suspension device that allows to suspend a top end of a string of risers. According to the invention, a heave compensation connection system is provided, which is adapted to connect the working deck to the travelling block, such that the hoisting device can move the working deck when the working deck is connected to the travelling block between a lowered riser assembly position allowing the assembly of a riser string, and in which the working deck is supported by the hull, and a raised heave compensated position, in which the working deck is connected to the travelling block, and wherein the working deck is heave compensated. | 04-09-2015 |
| 20150107847 | MOVEABLE JOINT - A moveable joint suitable for connection with a tubular member including a socket member having an inner surface defining a cavity and a rotation member having an outer surface corresponding to the cavity wherein the rotation member is journaled for rotation in said cavity. The rotation member has an inner surface defining a cylindrical bore through the rotation member and centered on a longitudinal axis of rotation member, the cylindrical bore being configured to receive a tubular member. The moveable joint further includes a releasable locking mechanism for releasably locking a tubular member in the cylindrical bore so that when the tubular member is locked in the cylindrical bore the tubular member and the rotation member are fixed with respect to one another and are rotatable relative to the socket member. The locking mechanism includes a cage connected to the rotation member. | 04-23-2015 |
| 20150315856 | DEVICE FOR CONNECTION AND DISCONNECTION OF AN ACTIVE HEAVE COMPENSATOR - A device for connecting and disconnecting an active compensator actuator or additional passive compensator actuators from a passive compensated load bearing unit during operation and at static suspended condition. The device comprises a connection arrangement ( | 11-05-2015 |
| 20150354296 | TELESCOPIC RISER JOINT - The invention relates to a telescopic riser joint for connecting a first riser part and a second riser part, the riser joint comprising: a first pipe part ( | 12-10-2015 |
| 20150361735 | HOISTING SYSTEMS WITH HEAVE COMPENSATION - Various hoisting systems with heave compensation are provided. In one embodiment, an apparatus includes a hoisting system having a crown block and a drawworks. The drawworks includes a rotatable drum for reeling in and reeling out a hoisting line that is wound on the rotatable drum and reeved over the crown block. The hoisting system includes active heave control at the drawworks and a passive heave compensation system. Additional systems, devices, and methods are also disclosed. | 12-17-2015 |
| 20160002996 | Pressure Control Device with Remote Orientation Relative to a Rig - A method of maintaining a substantially fixed orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device while the rig rotates. A method of remotely controlling an orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device, and controlling the rotation of the body from a location on the rig remote from the body. A pressure control device for use in conjunction with a rig can include a body, a flange, an orientation device which changes a rotational orientation of the body relative to the flange, and an orientation control system which remotely controls the orientation device. | 01-07-2016 |
| 20160060976 | Riser Tension Protector and Method of Use Thereof - A riser tension protector and coiled tubing lift frame assembly including same for use as a backup heave compensator is described. The assembly includes a frame having an upper frame section adapted for attachment to a top drive system and a lower frame section adapted to interface with a flowhead assembly; and a pair of pneumatic cylinders spaced apart from one another. The pneumatic cylinders have a respective cylinder barrel and a piston rod translatable therein, a free end of the piston rods being fixed to the upper frame section and a lower end of the cylinder barrels being fixed relative to the lower frame section. | 03-03-2016 |
| 20160060977 | Coiled Tubing Lift Frame Assembly and Method of Use Thereof - A coiled tubing lift frame assembly for use as a back-up heave compensator on a floating vessel is described. The assembly includes a frame having an upper frame section adapted for attachment to a top drive system and a lower frame section adapted to interface with a flowhead assembly. The assembly also includes a pair of hydraulic cylinders spaced apart from one another, the hydraulic cylinders having a respective cylinder barrel and a piston rod translatable therein with free end of the piston rods being fixed to the upper frame section. The assembly also includes a piston accumulator disposed adjacent to a first of the hydraulic cylinders and in fluid communication therewith via a hydraulic fluid line and an air accumulator disposed adjacent to a second of the hydraulic cylinders and in fluid communication with the piston accumulator via a pneumatic fluid line. | 03-03-2016 |
| 20160076311 | METHOD AND APPARATUS FOR COMPENSATED WELL INTERVENTION OPERATIONS - A motion compensating support assembly provides a support framework, attachable to well platform, floating vessel or other underlying structure, for supporting well intervention operations. The motion compensation function can be manually controlled, or set to passive compensation mode. Hydraulic clamp assemblies can connect the compensating well intervention support assembly to structural member(s) of an underlying support surface or substructure. | 03-17-2016 |
| 20160145943 | Method and Apparatus for Drilling Multiple Subsea Wells From an Offshore Platform at a Single Site - A floating, offshore drilling and/or production platform is equipped with a rail-mounted transport system that can be positioned at a plurality of selected positions over the well bay of the vessel. The transport system can move a drilling riser with a drilling riser tensioner system and a blowout preventer from one drilling location to another without removing them from the well bay of the vessel. Using the transport system, the drilling riser is lifted just clear of a first well head and positioned over an adjacent, second well head using guidelines. The transport system may then move the upper end of the drilling riser (together with its attached tensioner and BOP) to a second drilling location. A dummy wellhead may be provided on the seafloor in order to secure the lower end of the drilling riser without removing it from the sea while production risers are being installed. | 05-26-2016 |
| 20160145952 | ENHANCED RAM-STYLE RISER TENSIONER - In accordance with embodiments of the present disclosure, a ram-style riser tensioner system includes a plurality of cylinders for applying a desired tension to a riser, a support structure coupled to the riser, and a plurality of gas accumulators. Each of the cylinders is coupled to the support structure, and each of the gas accumulators is configured to provide pressurized gas to a corresponding one of the cylinders. The ram-style riser tensioner also includes a plurality of support rods coupled to the support structure for reducing bending moments on the plurality of cylinders. | 05-26-2016 |
| 20160376848 | DRILLING RIG ARRANGEMENT - The invention provides a system for operating a drilling rig on a drilling vessel, the system comprising a drilling tower ( | 12-29-2016 |
| 20160376862 | Method and Apparatus for Drilling Multiple Subsea Wells From an Offshore Platform at a Single Site - A floating, offshore drilling and/or production platform is equipped with a rail-mounted transport system that can be positioned at a plurality of selected positions over the well bay of the vessel. The transport system can move a drilling riser with a drilling riser tensioner system and a blowout preventer from one drilling location to another without removing them from the well bay of the vessel. Using the transport system, the drilling riser is lifted just clear of a first well head and positioned over an adjacent, second well head using guidelines. The transport system may then move the upper end of the drilling riser (together with its attached tensioner and BOP) to a second drilling location. A dummy wellhead may be provided on the seafloor in order to secure the lower end of the drilling riser without removing it from the sea while production risers are being installed. | 12-29-2016 |
