Boring From Floating Support With Submerged Independent Anchored Guide Base Patents (Class 175/7)
  • Patent number: 9719301
    Abstract: A process for constructing a well (1) for exploiting an oil or gas reservoir, comprising the following operations: (A) drilling a formation submerged by a water head, at least 3,600 meters deep or more, reaching the formation from the surface of the water with a drilling riser (7), and a drilling tool which passes internally through the drilling riser; and evacuating through the drilling riser (7) at least one of the circulating drilling fluid, the oil or natural gas coming from the formations and the resulting drilling materials. The drilling riser (7) has an external diameter equal to or smaller than 17 inches and reaches a wellhead (3) having an internal diameter equal to or smaller than 18.75 inches, and positioned in correspondence with or close to the seabed submerged which covers the formation.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 1, 2017
    Assignee: ENI S.p.A.
    Inventors: Claudio Molaschi, Alberto Maliardi, Paolo Ferrara
  • Patent number: 9677368
    Abstract: 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.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 13, 2017
    Assignee: Seahorse Equipment Corp
    Inventors: Travis Randall Jordan, Robert M. Kipp
  • Patent number: 9617810
    Abstract: A method for delivery of drilling fluid to a seafloor drilling assembly, the method comprising the steps of filling at least one container with drilling fluid; lowering the container through a body of water to adjacent a seafloor drilling assembly; connecting the container to the seafloor drilling assembly to deliver drilling fluid to the seafloor drilling assembly.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 11, 2017
    Assignee: NAUTILUS MINERALS PACIFIC PTY LTD
    Inventors: Glen Smith, Kenneth William Macleay, Paul William Nye
  • Patent number: 9605401
    Abstract: The present invention relates to a gravity-based foundation system for offshore wind turbine installation that comprises three floating concrete bases built with self-floating concrete caissons, equipped with valves for filling them with water and emptying the water out enabling their ballasting and anchoring at their final location; a metal structure which connects the floating concrete bases by means of a connecting element to the wind turbine tower, and a metal element which connects the floating concrete bases to the wind turbine, metal element on which a docking area is installed, a maintenance platform and access stairs, and it also relates to a method of installation of the gravity-based foundation system.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: March 28, 2017
    Assignee: Tecnica y Proyectos, S.A.
    Inventors: Javier Ivars Salom, Rafael Molina Sanchez, Jose Maria Garcia-Valdecasas Bernal, Miguel Angel Cabrerizo Morales
  • Patent number: 9476279
    Abstract: An apparatus including a bell nipple assembly defining a first internal passage that includes two sections forming first and second internal passages that may be aligned by a flexible connector disposed between first and second flanges in one of the sections to at least partially adjust for an offset amount caused by longitudinal axis misalignment of the other section. Methods of adjusting for longitudinal axis offset between two misaligned components, such as of a bell nipple zone, are also encompassed.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: October 25, 2016
    Assignee: Nabors Drilling International Limited
    Inventors: Sean M. Bailey, Padira Reddy
  • Patent number: 9429007
    Abstract: 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.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 30, 2016
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Donald G. Reitsma, Ossama R. Sehsah, Yawan Couturier
  • Patent number: 9376875
    Abstract: A system and method include pumping drilling fluid through a drill string extended into a wellbore extending below the bottom of a body of water, out the bottom of the drill string and into the wellbore annulus. Fluid is discharged from the annulus into a riser and a discharge conduit. The riser is disposed above the top of the wellbore and extends to the water surface. The discharge conduit couples to the riser and includes a controllable fluid choke. A fluid return line is coupled to an outlet of the choke and extends to the water surface. Gas under pressure is pumped into the return line at a selected depth below the water surface. The controllable fluid choke may be operated to maintain a selected drilling fluid level in the riser, the selected fluid level being a selected distance below the water surface.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: June 28, 2016
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Donald D. Reitsma, Ossama R. Sehsah, Yawan Couturier
  • Patent number: 9328575
    Abstract: A method of drilling a subsea wellbore includes drilling the wellbore by injecting drilling fluid through a tubular string extending into the wellbore from an offshore drilling unit (ODU) and rotating a drill bit disposed on a bottom of the tubular string. The method further includes, while drilling the wellbore: mixing lifting fluid with drilling returns at a flow rate proportionate to a flow rate of the drilling fluid, thereby forming a return mixture. The lifting fluid has a density substantially less than a density of the drilling fluid. The return mixture has a density substantially less than the drilling fluid density. The method further includes, while drilling the wellbore: measuring a flow rate of the returns or the return mixture; and comparing the measured flow rate to the drilling fluid flow rate to ensure control of a formation being drilled.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: May 3, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Guy F. Feasey, David Pavel, Mark A. Mitchell
  • Patent number: 9267340
    Abstract: 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.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: February 23, 2016
    Assignee: National Oilwell Varco Norway AS
    Inventors: David Bengt Johan Ankargren, Jochen Pohl
  • Patent number: 9260927
    Abstract: A system compensates for heave induced pressure fluctuations on a floating rig when a drill string or tubular is lifted off bottom and suspended on the rig, such as when tubular connections are made during MPD, tripping, or when a kick is circulated out during conventional drilling. The system also compensates for heave induced pressure fluctuations on a floating rig when a riser telescoping joint located below a RCD is moving while drilling.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: February 16, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Don M. Hannegan, Thomas F. Bailey, Simon J. Harrall
  • Patent number: 9222320
    Abstract: A subsea pressure control system can include at least one subsea choke which variably restricts flow of drilling fluid from a well annulus to a surface location, the choke being positioned at a subsea location, and a subsea process control system which automatically operates the subsea choke, whereby a desired pressure is maintained in the well annulus. Another subsea pressure control system can include at least one subsea choke which variably restricts flow of drilling fluid from a well annulus to a surface location, the choke being positioned at a subsea location, and a subsea pump which pumps the drilling fluid from the subsea location to the surface location.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 29, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Fredrik Varpe
  • Patent number: 9181753
    Abstract: An offshore well drilling system for drilling a subsea well, including a floating platform, an external riser extending from the subsea well, and an internal riser extending from the subsea well to the platform. The internal riser is nested within the external riser. The system also includes an external riser tension device to apply tension to the external riser. The system also includes an internal riser tension device, separate from the external riser tension device, to apply tension to the internal riser.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 10, 2015
    Assignee: Cameron International Corporation
    Inventors: William Puccio, David Cain, Vijay A. Cheruvu, Shian Jiun Chou
  • Patent number: 9163466
    Abstract: A fluid diverter system for a drilling facility comprises a diverter housing (15; 15?) fluidly connected to a tubular (3, 42, 43) extending to a subsea well. The diverter housing (15; 15?) comprising a movable diverter element (2) for closing off the diverter housing, a first fluid conduit (44) connected to a mud system and comprising a first valve (5), at least one second fluid conduit (20; 20?) leading from an outlet (46; 46?) in the diverter housing to an overboard location and comprising a second valve (1; 48), and a third fluid conduit (16) connected to a mud/gas separator (MGS) (13) and comprising a third valve (4). The MGS (13) is arranged below the outlet (50) of the diverter line, whereby riser fluids may be fed from the diverter housing (15) to the MGS (13) by means of gravity flow. The diverter valve (1; 48) on a leeward side of the drilling facility is configured to be open before the diverter element (2) closes around the tubular (3).
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 20, 2015
    Assignee: AKER MH AS
    Inventor: Dag Vavik
  • Patent number: 9163465
    Abstract: Method and apparatus for extending the horizontal distance through which wells can be drilled. A horizontal tubular is used to convey a drillstring from a drilling rig toward a target location and a mud return line and pump on the surface is used to pump drilling mud returning from the bit back to the drilling rig.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: October 20, 2015
    Inventors: Stuart R. Keller, Adel H. Younan, Mark C. Gentry, Timothy J. Nedwed, Bruce A. Dale
  • Patent number: 9157285
    Abstract: An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: October 13, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles R. Orbell, Christian Leuchtenberg, Craig W. Godfrey
  • Patent number: 9140103
    Abstract: A releasable guidepost extension is used on the seabed together with a bottom fixed guidepost part. These parts make up a guidepost for use during the lowering of a component from the surface of the water to a subsea structure. The guidepost part includes an upward (in use position) projecting end designed for engagement with a lower (in use position) end of the guidepost extension. The guidepost extension is loosely connected to the bottom fixed guidepost part via a pin and socket part on respective ends. A gap, or clearance, exists between the pin and socket part in the longitudinal direction, and at least one friction forming device arranged in the gap on either the pin part or in the socket part. The friction forming device does not get in contact, or engaged, with the other part unless the guidepost extension is subjected to a lateral force.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 22, 2015
    Assignee: AKER AUBDEA AS
    Inventors: Johan Larsson, Mathias Larsson
  • Patent number: 9133691
    Abstract: A system comprising a floating host located over a first drilling center in a body of water, the floating host comprising drilling facilities; a floating spar located over a second drilling center; a first fluid transfer conduit between the second drilling center and the spar; and a second fluid transfer conduit between the spar and the floating host.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 15, 2015
    Assignee: Shell Oil Company
    Inventor: Daniel Rudge
  • Patent number: 9115563
    Abstract: Systems for accessing a well bore including a BOP stack with a universal intervention interface are disclosed. In some embodiments, the system includes a BOP stack and a valve assembly. The BOP stack has a throughbore and is installable on a well such that the throughbore is in fluid communication with the well bore. The valve assembly is coupled to the BOP stack and includes a fluid flowpath in fluid communication with the BOP stack throughbore, two valves connected in series and disposed along the fluid flowpath, the valves operable to control flow through the fluid flowpath, and a ROV panel including ports accessible by a ROV for operation of the two valves.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 25, 2015
    Assignee: Cameron International Corporation
    Inventors: Johnnie E. Kotrla, Ross Stevenson
  • Patent number: 9109725
    Abstract: An offshore system for drilling or production includes a buoyant hull. In addition, the offshore system includes a topside mounted to the hull and positioned above the surface of the water. Further, the offshore system includes a conductor having a lower end disposed in the sea bed below the sea floor and an upper end coupled to the topside. Still further, the offshore system includes a bend restrictor disposed about the conductor. The bend restrictor has a lower end positioned in the sea bed below the sea floor and an upper end positioned above the sea floor.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 18, 2015
    Assignee: HORTON WISON DEEPWATER, INC.
    Inventors: James V. Maher, IV, Lyle David Finn
  • Patent number: 9085940
    Abstract: An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: July 21, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles R. Orbell, Christian Leuchtenberg, Craig W. Godfrey
  • Patent number: 9068424
    Abstract: A system for transferring fluids from a free-standing riser to a surface vessel comprises a first valve assembly including a first valve spool and a first isolation valve configured to control the flow of fluids through the first valve spool. In addition, the system comprises a second valve assembly releasably coupled to the first valve assembly with a hydraulically actuated connector. The second valve assembly includes a second valve spool and a second isolation valve configured to control the flow of fluids through the second valve spool. Further, the system comprises a deployment/retrieval rigging coupled to the first valve assembly and configured to suspend the first valve assembly and the second valve assembly from the surface vessel. Each isolation valve has an open position allowing fluid flow therethrough and a closed position restricting fluid flow therethrough, and each isolation valve is biased to the closed position.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: June 30, 2015
    Assignee: BP Corporation North America Inc.
    Inventors: Graeme Steele, Douglas Paul Blalock, Steve Eggert, Chau Nguyen, Paul Sheperd, Trevor Smith, David Wilkinson
  • Patent number: 9045971
    Abstract: A subsea system for intervention or deployment comprising a spool (9, 109) adapted for mounting subsea, a carrier (4, 4, 5?, 34, 104) adapted for suspension from a surface vessel or platform, a guide line (8, 108) wound on the spool, the free end of the guide line connected to the carrier and means (11) for driving the spool in one direction to pay out a length of guide line as the distance between the spool and the carrier is increased and in the other direction to reel in the length of guide line as the distance between the spool and the carrier decreases.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: June 2, 2015
    Assignee: Subsea Technologies Group Limited
    Inventor: David Ernest McKay
  • Patent number: 8997888
    Abstract: A multi purpose hoisting device for use on a floating vessel having a deck, including: a load bearing structure to be mounted on the vessel; a main hoisting mechanism for raising/lowering an object above the deck and including: at least one main hoisting winch; an upper cable pulley block supported by the load bearing structure; a travelling cable pulley block; a main hoisting cable associated with the at least one main hoisting winch and passed over pulleys of the upper cable pulley block and of the travelling pulley block in a multiple fall configuration, such that the travelling cable pulley block is moveable relative to the load bearing structure by using the at least one main hoisting winch; a main hoist heave compensation mechanism associated with the main hoisting cable for damping the effect of sea-state induced motion of the vessel onto an object supported by the main hoisting cable.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 7, 2015
    Assignee: ITREC B.V.
    Inventors: Joop Roodenburg, Diederick Bernardus Wijning
  • Patent number: 8997889
    Abstract: The invention relates to an underwater drilling arrangement and a method for introducing a foundation element into a bed of a body of water comprising a submersible working platform for placement onto the bed of a body of water, several ground contact elements which are arranged in an adjustable manner on the working platform for aligning the working platform on the bed of a body of water, and at least one guide pipe for receiving and guiding the drilling tool. For an improved anchoring provision is made according to the invention for the guide pipe to be supported in a longitudinally displaceable and rotatable manner on the working platform and for a guide pipe drive to be provided on the working platform for driving the guide pipe in a rotating manner.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 7, 2015
    Assignee: Bauer Maschinen GmbH
    Inventors: Stefan Michael Finkenzeller, Ulrich Wiedenmann
  • Patent number: 8967292
    Abstract: A method and device for establishing a borehole (26) in the seabed (4), comprising setting of a conductor (1), wherein the method is characterized in that it comprises:—providing the conductor (1) with a suction module (6);—then lowering the conductor (1) down to the seabed (4); and—displacing the conductor (1) down into the seabed (4).
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: March 3, 2015
    Assignee: AGR Subsea AS
    Inventors: Jon Arne Hammersmark, Bernt Eikemo
  • Patent number: 8926226
    Abstract: The invention relates to a device for manufacturing a foundation for a mass located at height, such as the jacket of a wind turbine or a jetty, wherein the foundation comprises a quantity of piles driven into an underwater bottom in a geometric pattern. The device comprises a positioning framework of a number of mutually connected guide tubes arranged in a geometric pattern and adapted to receive and guide a pile to be driven into the underwater bottom, wherein the guide tubes comprise a mechanism with which at least an internal wall part of the guide tubes is displaceable in the radial direction of the guide tubes from a radially inward support position for the pile to a radially more outward position in which the internal wall part substantially releases the pile. The invention also relates to a method and an assembly of a jack-up platform and the device.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: January 6, 2015
    Assignee: GeoSea N.V.
    Inventors: Luc Vandenbulcke, Koen Vanderbeke
  • Patent number: 8911180
    Abstract: The invention relates to an underwater work assembly and to a method for anchoring the underwater work assembly in a bed of a lake, sea or river. The work assembly comprises a service platform which can be lowered and a plurality of supporting feet which are mounted so that they can be adjusted on the service platform for positioning on the lake, sea or river bed and can be moved in and out relative to the service platform by means of an actuating cylinder. In order to improve anchoring it is provided that at least one supporting foot is mounted rotationally relative to the service platform and that a rotary drive facing the supporting foot is provided, with which the supporting foot is driven in rotation for screwing into the lake, sea or river bed.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: December 16, 2014
    Assignee: Bauer Maschinen GmbH
    Inventors: Stefan Michael Finkenzeller, Ulli Wiedenmann
  • Patent number: 8905156
    Abstract: A template for use in positioning subsea wellbores that has a drop away funnel that extends laterally from the template. The drop away funnel is used to locate a piling adjacent the wellbores and is selectively detached from the template after installing the piling. A tang and clevis type assembly mounts the drop away funnel to the template, where the tang and clevis are coupled together with a main stud. The main stud is oriented substantially parallel with an axis of the drop away funnel; so that when the stud is removed, the drop away funnel can decouple from the template and slide axially downward along the piling.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 9, 2014
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Clint Trimble, Christopher Loftin, Jeffrey Allen Raynal
  • Publication number: 20140326503
    Abstract: A system configured to execute an underwater well drilling program in the bed of a body of water has a jack-up having a floating structure and a drilling installation supported on the floating structure; and an auxiliary floating unit connectable selectively to the jack-up to enable transfer of the jack-up over the body of water, even in very shallow water.
    Type: Application
    Filed: November 23, 2012
    Publication date: November 6, 2014
    Inventors: Alessandro Valsecchi, Luigi Lanfranchi
  • Patent number: 8875805
    Abstract: A mobile drilling system comprising a top member with a drilling rig positioned thereon. The top member is removably engaged with a foundation member. The foundation member comprises a tower. The top member is moveable and adapted to be elevated out of the water for placement on top of the tower. The tower is preferably of concrete and extends out of the water and above any ice. A method is also described by which the top member is elevated out of the water either by jacking down legs or lifting by interaction with the tower.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 4, 2014
    Assignee: KV/Erner Concrete Solutions AS
    Inventors: Jan-Diederik Advocaat, Jon Hermstad, Dag Nikolai Jenssen
  • Publication number: 20140318863
    Abstract: A floating offshore facility for offshore hydrocarbon production, comprising an upper deck, a lower deck, a well bay comprising a plurality of drilling slots and a plurality of production slots surrounding said drilling slots, a cart supporting a drilling riser and being movable together with said drilling riser inside the opening of the plurality of the drilling slots, and a drilling rig movable above the well bay to drill the well through the drilling riser.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventor: Philippe Labrugere
  • Patent number: 8869901
    Abstract: The offshore drilling system comprises a floating drilling vessel 1, a well drilled in the sea bottom 2, a tubular riser extending the well up to the floating vessel, well sealing elements fastened to the end of the riser at the level of floating vessel 1. The riser comprises tubular elements 12 connected to one another by connectors 13 designed to withstand the internal pressure of the well. Tubulars 12 comprise a metallic tubular body hooped by windings of fibers coated with a polymer matrix. The riser comprises several sections, each section consisting of tube elements whose hoop stress is determined as a function of the depth at which the section lies and of the mechanical strength of said metallic tubular body.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: October 28, 2014
    Assignee: IFP Energies Nouvelles
    Inventor: Jean Guesnon
  • Patent number: 8833463
    Abstract: A whipstock system for drilling a wellbore from a water bottom supported platform having wellbores with conductor pipes disposed through guide slots in a template on the bottom of a body of water includes a whipstock pipe extending from an equipment deck surface on the platform to a stab in sub. The whipstock pipe includes a window and j-slot mechanism for releasably engaging a scab liner. A stab in sub is configured to make mechanical connection between the whipstock pipe and a surface of a wellbore conductor pipe cut proximate the water bottom. The system includes a scab liner extending from the window to the water bottom when the stab in sub is engaged to the cut conductor pipe. The window is disposed above the water bottom. The scab liner configured to enable drilling a wellbore surface hole therethrough to a selected depth of a surface casing.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: September 16, 2014
    Assignee: Apache Corporation
    Inventor: Kyle S. Graves
  • Patent number: 8833462
    Abstract: The disclosure provides a method and system of installing subsea well trees, comprising: creating a glory hole having a depth below a seabed at a well location of a hydrocarbon reservoir; moving a floating offshore platform coupled with a foundation, the platform having a topsides and a caisson with downwardly extending walls defining an inner volume between the walls, the foundation coupled to the caisson walls, and the caisson walls having adjustable buoyancy; lowering the offshore platform with the foundation into the glory hole; drilling from the topsides into the hydrocarbon reservoir below the foundation to create a well; installing a well tree on the well, the well tree being disposed in the glory hole below the height of the seabed; coupling the well tree to a flow line; releasing the offshore platform from the foundation; and reusing the offshore platform to install other foundations at other predetermined well locations.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: September 16, 2014
    Assignee: Technip France
    Inventors: Jason Muise, Andrew J. Blundon
  • Patent number: 8733472
    Abstract: A system including a setback and racking system and a set of wellbay accesses, at least a portion of the setback and racking system positioned at an elevation lower than the elevation of the wellbay accesses. A system including a centrally located setback and racking system, a set of wellbay accesses, and at least one peripheral skidding system, wherein the setback and racking system is positioned at least partially below the elevation of the peripheral skidding system. A system including at least one peripheral skidding system and a set of wellbay accesses positioned along a wellbay access perimeter surrounding a central focus that is not an integral part of the peripheral skidding system. A method of drilling by aligning each of at least two drilling modules with a respective wellbay access via a peripheral skidding system and operating at least two drilling modules at least partially simultaneously.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 27, 2014
    Inventor: Christopher Magnuson
  • Publication number: 20140131098
    Abstract: A method for motion compensation includes obtaining measurements related to heave at a surface of a rig, transmitting the measurements to a processor, automatically transmitting a control signal from the processor to a motion compensation component in response to the measurements wherein the motion compensation component is a slip joint and is attached to a drill string located in the wellbore, activating the motion compensation component to compensate for motion in response to the signal, and preventing axial or rotational movement of a portion of the drill string below the motion compensation component.
    Type: Application
    Filed: January 16, 2014
    Publication date: May 15, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Thomas D. MacDougall, Harold S. Bissonette, Christopher S. Del Campo
  • Patent number: 8668028
    Abstract: The invention relates to an underwater drilling arrangement for introducing a tubular foundation element into the bed of a body of water comprising at least one rotary drill drive, whereby a drill rod running inside the foundation element can be set into rotation by means of the rotary drill drive. The invention is characterized, among other things, in that a submersible working platform for placement onto the bed of a body of water is provided, whereby on the working platform at least one holding means for securing the foundation element in a rotationally fixed manner on the working platform is arranged and in that at least one mounting part for placement onto the foundation element is provided, whereby the mounting part has a clamping means for securing the mounting part on the foundation element, and the rotary drill drive is arranged on the mounting part.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: March 11, 2014
    Assignee: Bauer Maschinen GmbH
    Inventor: Stefan Michael Finkenzeller
  • Patent number: 8640790
    Abstract: An apparatus, a system and a method for motion compensation use wired drill pipe to transmit downhole measurements from downhole tools to the surface. The wired drill pipe may transmit control signals from a terminal located at the surface to the downhole tools. In response to the control signals, a motion compensation component may enable the drill string to compensate for motion, such as, for example, heave. The motion compensation component may change a length of the drill string. A downhole tool having arms may be connected to the drill string and the wired drill pipe. The control signals may direct the downhole tool to move between an extended position and a retracted position.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: February 4, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Tom MacDougall, Harold Steven Bissonnette, Christopher S. Del Campo
  • Publication number: 20130228339
    Abstract: An apparatus for, and method of, lowering items from a drilling rig to a well located below it through the use of a landing string comprised of drill pipe having an enlarged diameter section with a shoulder, in combination with upper and lower holders having wedge members with shoulders that engage and support the drill pipe at the shoulder of the enlarged diameter section, the shoulder of the drill pipe and the shoulders of the wedge members being rotatable with respect to each other.
    Type: Application
    Filed: February 26, 2013
    Publication date: September 5, 2013
    Applicant: ARCHER RENTAL SERVICES, LLC
    Inventors: Burt A. Adams, Norman A. Henry
  • Publication number: 20130008664
    Abstract: A whipstock system for drilling a wellbore from a water bottom supported platform having wellbores with conductor pipes disposed through guide slots in a template on the bottom of a body of water includes a whipstock pipe extending from an equipment deck surface on the platform to a stab in sub. The whipstock pipe includes a window and j-slot mechanism for releasably engaging a scab liner. A stab in sub is configured to make mechanical connection between the whipstock pipe and a surface of a wellbore conductor pipe cut proximate the water bottom. The system includes a scab liner extending from the window to the water bottom when the stab in sub is engaged to the cut conductor pipe. The window is disposed above the water bottom. The scab liner configured to enable drilling a wellbore surface hole therethrough to a selected depth of a surface casing.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Inventor: Kyle S. Graves
  • Publication number: 20120247830
    Abstract: A mobile drilling system comprising a top member with a drilling rig positioned thereon. The top member is removably engaged with a foundation member. The foundation member comprises a tower. The top member is moveable and adapted to be elevated out of the water for placement on top of the tower. The tower is preferably of concrete and extends out of the water and above any ice. A method is also described by which the top member is elevated out of the water either by jacking down legs or lifting by interaction with the tower.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 4, 2012
    Inventors: Jan-Diederik Advocaat, Jon Hermstad, Dag Nikolai Jenssen
  • Publication number: 20120067642
    Abstract: A system including a setback and racking system and a set of wellbay accesses, at least a portion of the setback and racking system positioned at an elevation lower than the elevation of the wellbay accesses. A system including a centrally located setback and racking system, a set of wellbay accesses, and at least one peripheral skidding system, wherein the setback and racking system is positioned at least partially below the elevation of the peripheral skidding system. A system including at least one peripheral skidding system and a set of wellbay accesses positioned along a wellbay access perimeter surrounding a central focus that is not an integral part of the peripheral skidding system. A method of drilling by aligning each of at least two drilling modules with a respective wellbay access via a peripheral skidding system and operating at least two drilling modules at least partially simultaneously.
    Type: Application
    Filed: March 22, 2011
    Publication date: March 22, 2012
    Inventor: Christopher Magnuson
  • Publication number: 20120067590
    Abstract: 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 drilling riser and a surface BOP at the upper end of the drilling riser. The surface BOP has a gas bleeding outlet. The riser also comprises a BOP, with a by-pass line. The drilling riser has an outlet at a depth below the water surface, and the outlet is connected to a pumping system with a flow return conduit running back to a drilling vessel/platform.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Applicant: OCEAN RISER SYSTEMS AS
    Inventor: Borre Fossli
  • Patent number: 8087466
    Abstract: The invention relates to a centralization and running tool (CTR) in a subsea installation in connection with offshore related oil and gas exploration, where the subsea installation (SCM) is arranged to be placed on the ocean bottom or a drilling template and comprises a pipe-formed body (10), at least partially open at the top and extended, arranged to receive and carry through a drill stem (12) from a drilling rig or a drilling vessel. The centralization and running tool (20) is arranged to surround the drill stem (12) and to be placed in the pipe-formed body (10), and the centralization and running tool (20) comprises, together with the drill stem (12), a rotary packing housing (22) with a number of seals (24,26) that lie against the drill stem (12), and the packing housing (22), in accordance with the movements of the drill stem (12), is arranged for radial movement to take up angular deviations of the drill stem (12).
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: January 3, 2012
    Assignee: AGR Subsea AS
    Inventor: Arvid Iversen
  • Publication number: 20110272194
    Abstract: The invention relates to an underwater drilling arrangement for introducing a tubular foundation element into the bed of a body of water comprising at least one rotary drill drive, whereby a drill rod running inside the foundation element can be set into rotation by means of the rotary drill drive. The invention is characterized, among other things, in that a submersible working platform for placement onto the bed of a body of water is provided, whereby on the working platform at least one holding means for securing the foundation element in a rotationally fixed manner on the working platform is arranged and in that at least one mounting part for placement onto the foundation element is provided, whereby the mounting part has a clamping means for securing the mounting part on the foundation element, and the rotary drill drive is arranged on the mounting part.
    Type: Application
    Filed: November 9, 2010
    Publication date: November 10, 2011
    Applicant: BAUER MASCHINEN GMBH
    Inventor: Stefan Michael FINKENZELLER
  • Patent number: 8033335
    Abstract: An offshore universal riser system (OURS) and injection system (OURS-IS) inserted into a riser. The OURS/OUR-IS provides a means for pressurizing the marine riser to its maximum pressure capability and easily allows variation of the fluid density in the riser. The OURS-IS includes a riser pup joint with provision for injecting a fluid into the riser with isolation valves. The OURS includes a riser pup joint with an inner riser adapter, a pressure test nipple, a safety device, outlets with valves for diverting the mud flow, nipples with seal bores for accepting RCDs. The easy delivery of fluids to the OURS-IS is described. A method is detailed to manipulate the density in the riser to provide a wide range of operating pressures and densities enabling the concepts of Managed Pressure Drilling, Dual Density Drilling or Dual Gradient Drilling, and Underbalanced Drilling.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 11, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles R. Orbell, Christian Leuchtenberg
  • Publication number: 20110209877
    Abstract: An apparatus for, and method of, lowering items from a drilling rig to a well located below it through the use of a landing string comprised of drill pipe having an enlarged diameter section with a shoulder, in combination with upper and lower holders having wedge members with shoulders that engage and support the drill pipe at the shoulder of the enlarged diameter section, the shoulder of the drill pipe and the shoulders of the wedge members being rotatable with respect to each other.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 1, 2011
    Applicant: ALLIS-CHALMERS RENTAL SERVICES LLC
    Inventors: Burt A. Adams, Norman A. Henry
  • Patent number: 7984765
    Abstract: A system and method is described for well intervention in subsea installed oil and gas wells, comprising a surface vessel (10), or rig, with equipment (22) for handling and controlling a connection string (20) for downhole tools, and also a system (26) for the supply and return of drilling fluid, from where the connection string (20) for the downhole tool runs down in an actual drilling hole (36) of a well on the subsea, where a X-mas tree (12) with associated blowout preventer (16) is arranged on the well, and where a return line (24) for drilling fluid runs up to said system (26) on the surface vessel or the rig. The connecting string (20) for downhole tools runs into the well through open sea without a riser or landing string being fitted, and a removable intervention valve (14) is arranged in the drilling hole (36), where the intervention valve is arranged to function as a testable, temporary barrier.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: July 26, 2011
    Assignee: Well Intervention Solutions AS
    Inventor: Tom Kjetil Askeland
  • Patent number: 7975770
    Abstract: The disclosure is drawn to methods of drilling wells utilizing blow out prevention components of differing pressure ratings. In the initial drilling phase, a lower pressure rated blow out prevention component is used. In a subsequent drilling phase where a reservoir of a natural resource is penetrated, a higher pressure rated blow out prevention component is used.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 12, 2011
    Assignee: Transocean Offshore Deepwater Drilling Inc.
    Inventor: Chip Keener
  • Patent number: 7975771
    Abstract: At least a portion of a subsea well is drilled casing-while-drilling techniques. A landing shoulder is formed within an outer string of a casing. The outer string of casing is secured to an outer wellhead housing above the landing shoulder and lowered into the wellbore. A casing hanger is attached to an inner string of casing and lowered through the outer string of casing into the wellbore. A drill bit at the at the lower end of the inner string of casing is rotated to deepen the well. The string of inner casing moves downward as the well is being deepened until landing the casing hanger on the load shoulder. A tieback member is attached to an inner wellhead housing and lowered into sealing engagement with the casing hanger. The inner wellhead housing lands in the outer wellhead housing.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: July 12, 2011
    Assignee: Vetco Gray Inc.
    Inventor: David L. Ford