Patents by Inventor Roald T. Lokken
Roald T. Lokken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10894581Abstract: The present techniques are directed to systems and a method for reducing trenching around piles. An exemplary method includes attaching a mooring line to one end of a padeye extender bar that is coupled by another end to a padeye on the pile. The pile is installed in a sediment layer. The padeye extender bar is deployed to hold an attachment point for the mooring line above the sedimenlt layer.Type: GrantFiled: August 15, 2019Date of Patent: January 19, 2021Assignee: ExxonMobil Upstream Research CompanyInventors: Patrick C. Wong, Haydar Arslan, Roald T. Lokken
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Publication number: 20200062348Abstract: The present techniques are directed to systems and a method for reducing trenching around piles. An exemplary method includes attaching a mooring line to one end of a padeye extender bar that is coupled by another end to a padeye on the pile. The pile is installed in a sediment layer. The padeye extender bar is deployed to hold an attachment point for the mooring line above the sedimenlt layer.Type: ApplicationFiled: August 15, 2019Publication date: February 27, 2020Inventors: Patrick C. Wong, Haydar Arslan, Roald T. Lokken
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Publication number: 20180363848Abstract: A method, including: obtaining a stand-alone liquefied gas storage tank, wherein the liquefied gas storage tank includes a membrane insulation system; and disposing the liquefied gas storage tank onto a storage tank pre-installed foundation.Type: ApplicationFiled: October 28, 2016Publication date: December 20, 2018Inventor: Roald T. Lokken
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Publication number: 20170363069Abstract: A method of generating power. An airborne power generating craft is connected to a floating structure using an aloft portion of a tether line. The floating structure is connected to an anchor using an underwater portion of the tether line. The anchor is secured to an underwater floor. Power is generated based on movement of the airborne power generating craft in response to a wind force. The floating structure is connected to an electrical transmission system through at least part of the tether line. The generated power is transmitted to the electrical transmission system.Type: ApplicationFiled: May 15, 2017Publication date: December 21, 2017Inventors: Christopher G. Hart, Donald P. Bushby, Brandon Cassimere, Roald T. Lokken
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Publication number: 20170363066Abstract: A method of generating power. An airborne power generating craft is connected to an anchor using a tether line. The anchor is secured to an underwater floor. Power is generated based on movement of the airborne power generating craft in response to a wind force. The tether line is maintained at a constant length between the airborne power generating craft and the anchor as the airborne power generating craft moves in response to the wind force. The airborne power generating craft is connected to an electrical transmission system through at least part of the tether line. The generated power is transmitted to the electrical transmission system. A condition is sensed in which transmitting power to the electrical transmission system is not desired. The airborne power generating craft is electrically isolated to prevent power from being transmitted from the airborne power generating craft to the electrical transmission system.Type: ApplicationFiled: May 15, 2017Publication date: December 21, 2017Inventors: Christopher G. Hart, Donald P. Bushby, Brandon Cassimere, Roald T. Lokken
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Patent number: 9315239Abstract: A mooring apparatus that includes an actuator connected to a mooring hook and the mooring base. The actuator provides translational movement of the mooring hook towards the mooring base. The mooring apparatus also includes a vessel motion detection system and a mooring apparatus control system. The mooring apparatus may include a mooring line tension gauge. The vessel motion detection system provides an input indicative of vessel motion to the mooring apparatus control system. The mooring apparatus control system then provides an output signal to the appropriate mooring system(s) which results in adjustment of the mooring line tension in the appropriate mooring system(s). Methods for use thereof are also disclosed.Type: GrantFiled: January 11, 2013Date of Patent: April 19, 2016Assignee: ExxonMobil Upstream Research CompanyInventors: Keith Gill, Roald T. Lokken
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Publication number: 20150204156Abstract: A system and method for rapidly responding to and regaining control of uncontrolled flow from offshore hydrocarbon wells, that includes a subsea containment assembly, optionally including a capture caisson assembly installed around the assembly, riser systems for production of hydrocarbons to capture vessels on the surface of the sea, and modularized subsystems facilitating communication between and fluid flow from the subsea containment assembly through the riser to the capture vessel.Type: ApplicationFiled: March 27, 2015Publication date: July 23, 2015Inventors: Calvin W. Crossley, Jeffrey W. Jones, Allen P. Allegra, Jonathan Bowman, Lloyd Brown, John Dagleish, Brian J. Fielding, Mitch Guinn, Joe Q. Jin, Wan Cai Kan, Roald T. Lokken, Mario R. Lugo, Peter G. Noble, Matthew J. Obernuefemann, Murray Smith, Paul M. Sommerfield, Charlie Tyrell, Richard Weser, Stephen Wetch
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Patent number: 9004176Abstract: A system and method for rapidly responding to and regaining control of uncontrolled flow from offshore hydrocarbon wells, comprising a subsea containment assembly, optionally including a capture caisson assembly installed around the assembly, riser systems for production of hydrocarbons to capture vessels on the surface of the sea, and modularized subsystems facilitating communication between and fluid flow from the subsea containment assembly through the riser to the capture vessel.Type: GrantFiled: July 21, 2011Date of Patent: April 14, 2015Assignee: Marine Well Containment CompanyInventors: Calvin W. Crossley, Jeffrey W. Jones, Allen P. Allegra, Jonathan Bowman, Lloyd Brown, John Dagleish, Brian J. Fielding, Mitch Guinn, Joe Q. Jin, Wan Cai Kan, Roald T. Lokken, Mario R. Lugo, Peter G. Noble, Matthew J. Obernuefemann, Murray Smith, Paul M. Sommerfield, Charlie Tyrell, Richard Weser, Stephen Wetch
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Publication number: 20140338581Abstract: A mooring apparatus that includes an actuator connected to a mooring hook and the mooring base. The actuator provides translational movement of the mooring hook towards the mooring base. The mooring apparatus also includes a vessel motion detection system and a mooring apparatus control system. The mooring apparatus may include a mooring line tension gauge. The vessel motion detection system provides an input indicative of vessel motion to the mooring apparatus control system. The mooring apparatus control system then provides an output signal to the appropriate mooring system(s) which results in adjustment of the mooring line tension in the appropriate mooring system(s). Methods for use thereof thereof are also disclosed.Type: ApplicationFiled: January 11, 2013Publication date: November 20, 2014Inventors: Keith Gill, Roald T. Lokken
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Publication number: 20120018165Abstract: A system and method for rapidly responding to and regaining control of uncontrolled flow from offshore hydrocarbon wells, comprising a subsea containment assembly, optionally including a capture caisson assembly installed around the assembly, riser systems for production of hydrocarbons to capture vessels on the surface of the sea, and modularized subsystems facilitating communication between and fluid flow from the subsea containment assembly through the riser to the capture vessel.Type: ApplicationFiled: July 21, 2011Publication date: January 26, 2012Inventors: Calvin W. Crossley, Jeffrey W. Jones, Allen P. Allegra, Jonathan Bowman, Lloyd Brown, John Dagleish, Brian J. Fielding, Mitch Guinn, Joe Q. Jin, Wan Cai Kan, Roald T. Lokken, Mario R. Lugo, Peter G. Noble, Matthew J. Obernuefemann, Murray Smith, Paul M. Sommerfield, Charlie Tyrell, Richard Weser, Stephen Wetch
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Patent number: 7958938Abstract: A system for supporting multiple-well-site, offshore, hydrocarbon-bearing fields, each well-site has one or more wells. In general, the system first comprises a floating vessel that is relocatable from a first subsea well-site to a second subsea well-site. The system also comprises two separate systems: (1) an operations control system for providing subsea well-site operations such as power and communications; and (2) an intervention system for conducting intervention services to an individual subsea well such as workover services and maintenance services. The operations system may provide control to wells and other subsea equipment at either the first well-site or the second well-site, regardless of the location of the floating vessel. The intervention system may provide workover and/or maintenance to subsea equipment or individual wells at the well-site at which it is located.Type: GrantFiled: February 23, 2005Date of Patent: June 14, 2011Assignee: ExxonMobil Upstream Research CompanyInventors: Calvin W. Crossley, Tracy A. Fowler, M. Sidney Glasscock, Matthew N. Greer, Roald T. Lokken, Dinesh R. Pejaver, W. Brett Wilson, David B. Yost
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Patent number: 7470163Abstract: A combined riser, offloading and mooring system is provided for the offloading of hydrocarbons from a floating production vessel (FPV), onto a tanker. The system preferably includes an offloading buoy tethered to the mudline by at least one mooring line. The offloading buoy and the mooring line can be part of an offloading buoy system for supporting a production riser and fluid jumper lines. Additionally, the offloading buoy system can support an offloading jumper line from the FPV to a fluid connector on the offloading buoy system through which hydrocarbon fluid is loaded via an offloading hose onto a tanker. The combined riser, offloading and mooring system also preferably includes at least one set of FPV mooring lines for securing the floating production vessel to the offloading buoy system. The system further preferably includes a hawser line for connecting the tanker to the offloading buoy system. In this manner, the number of mooring lines for the floating production vessel may be reduced.Type: GrantFiled: August 11, 2005Date of Patent: December 30, 2008Assignee: ExxonMobil Upstream Research CompanyInventors: Roald T. Lokken, W. Brett Wilson
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Publication number: 20080210432Abstract: A system for supporting multiple-well-site, offshore, hydrocarbon-bearing fields, each well-site has one or more wells. In general, the system first comprises a floating vessel that is relocatable from a first subsea well-site to a second subsea well-site. The system also comprises two separate systems: (1) an operations control system for providing subsea well-site operations such as power and communications; and (2) an intervention system for conducting intervention services to an individual subsea well such as workover services and maintenance services. The operations system may provide control to wells and other subsea equipment at either the first well-site or the second well-site, regardless of the location of the floating vessel. The intervention system may provide workover and/or maintenance to subsea equipment or individual wells at the well-site at which it is located.Type: ApplicationFiled: May 3, 2004Publication date: September 4, 2008Inventors: Calvin W. Crossley, Tracy A. Fowler, M. Sidney Glasscock, Matthew N. Greer, Roald T. Lokken, Dinesh R. Pejaver, W. Brett Wilson, David B. Yost
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Publication number: 20080014024Abstract: A method for installing a heave plate (100) on a floating structure (10). The method allows for construction of the floating structure (10) and heave plate (100) on-shore, while providing for installation of the heave plate on the floating structure at sea.Type: ApplicationFiled: June 25, 2003Publication date: January 17, 2008Inventors: Roald T. Lokken, J. Ward Turner
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Patent number: H1246Abstract: A tether for securing a buoyant structure to the ocean floor. The tether includes a cable or a plurality of cables whose weight is at least partially supported by a buoyancy tank.Type: GrantFiled: May 26, 1993Date of Patent: November 2, 1993Assignee: Exxon Production Research CompanyInventors: Roger W. Huffaker, Roald T. Lokken, Neil C. Nolop