Patents by Inventor John A. Johansen
John A. Johansen 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: 11920427Abstract: A method of operating a subsea production system (1), the system comprising a subsea tree (2) connected to a subsea well (3), a production tubing (4) in the well (3), and an electrically operable electric downhole safety valve (5), wherein the method comprises, in case of malfunction in operation of the electric downhole safety valve (5), the steps of installing a hydraulically operable insert hydraulic downhole safety valve (6) within the production tubing (4); connecting the insert hydraulic downhole safety valve (6) to the fluid line (10) at a point of setting (7) in the subsea well (3); operating the insert hydraulic downhole safety valve (6) by using the fluid line (10) which extends from an input port (11) at a position outside of the subsea tree (2).Type: GrantFiled: August 17, 2020Date of Patent: March 5, 2024Inventors: Sigurd Moe, John A. Johansen
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Patent number: 11875918Abstract: An electrical feedthrough assembly may include a lower assembly and an upper assembly coupled together. The lower assembly may include an outer body with a lower housing and an upper housing disposed within a bore of the outer body, and a first conductor extending from the lower housing to the upper housing. Additionally, the upper assembly may include an outer body with a pin end, the pin end is inserted into an opening of the lower assembly, a main body connected to the outer body, a second conductor disposed within the main body, a channel in the outer body open to an outside of the outer body and a chamber within the outer body, a piston disposed within the channel and configured to fluidly isolate the chamber from the outside of the outer body, and a dielectric fluid provided within the chamber.Type: GrantFiled: June 19, 2020Date of Patent: January 16, 2024Assignee: FMC Technologies, Inc.Inventors: Erik Van Mook, Matthew Keller, David Hilbeck, John Johansen
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Publication number: 20220275703Abstract: A method of operating a subsea production system (1), the system comprising a subsea tree (2) connected to a subsea well (3), a production tubing (4) in the well (3), and an electrically operable electric downhole safety valve (5), wherein the method comprises, in case of malfunction in operation of the electric downhole safety valve (5), the steps of installing a hydraulically operable insert hydraulic downhole safety valve (6) within the production tubing (4); connecting the insert hydraulic downhole safety valve (6) to the fluid line (10) at a point of setting (7) in the subsea well (3); operating the insert hydraulic downhole safety valve (6) by using the fluid line (10) which extends from an input port (11) at a position outside of the subsea tree (2).Type: ApplicationFiled: August 17, 2020Publication date: September 1, 2022Inventors: Sigurd Moe, John A. Johansen
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Publication number: 20220238258Abstract: An electrical feedthrough assembly may include a lower assembly and an upper assembly coupled together. The lower assembly may include an outer body with a lower housing and an upper housing disposed within a bore of the outer body, and a first conductor extending from the lower housing to the upper housing. Additionally, the upper assembly may include an outer body with a pin end, the pin end is inserted into an opening of the lower assembly, a main body connected to the outer body, a second conductor disposed within the main body, a channel in the outer body open to an outside of the outer body and a chamber within the outer body, a piston disposed within the channel and configured to fluidly isolate the chamber from the outside of the outer body, and a dielectric fluid provided within the chamber.Type: ApplicationFiled: June 19, 2020Publication date: July 28, 2022Applicant: FMC Technologies, Inc.Inventors: Erik Van Mook, Matthew Keller, David Hilbeck, John Johansen
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Patent number: 8875794Abstract: The present invention regards a joint for use in a riser (1) extending between a floating installation (3) and a subsea installation (2). The joint comprises an inner pipe segment (21) and an outer pipe segments (22), arranged moveable relative each other in an axial direction and connectable to respective riser segments, forming a chamber (23) between them with a radially extending piston (24), dividing the chamber (23) in a first chamber part (25) and a second chamber part (26), wherein on of said chamber parts (25) in an initial position of the joint is adapted to contain a mainly incompressible fluid, this chamber part (25) decreasing in volume as the inner pipe segment (21) is moved relatively out of the outer pipe segment (22).Type: GrantFiled: February 5, 2010Date of Patent: November 4, 2014Assignee: FMC Kongsberg Subsea ASInventors: Hans-Paul Carlsen, Tor-Øystein Carlsen, John A. Johansen
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Patent number: 8806092Abstract: The invention relates to a control system for a subsea installation based on CAN bus technology. A single cable forms a backbone for transmitting signals and/or power from a central control unit to a number of devices or sensors on the installation. Terminals are attached to the cable at intervals, allowing devices to be plugged in while the system is operable. A termination may also include repeaters or amplifiers for transmitting signals over longer distances.Type: GrantFiled: February 17, 2005Date of Patent: August 12, 2014Assignee: FMC Kongsberg Subsea ASInventors: John A. Johansen, Vidar Sten-Halvorsen
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Patent number: 8322427Abstract: A method of reducing a pressure within a first cavity of a subsea device is disclosed which includes transferring fluid within the first cavity to an accumulator, increasing a pressure of the fluid within the accumulator and, after increasing the pressure of the fluid within the accumulator, transferring at least some of the fluid in the accumulator into a second cavity, wherein the second cavity is at a higher pressure than said first cavity.Type: GrantFiled: December 12, 2007Date of Patent: December 4, 2012Assignee: FMC Kongsberg Subsea ASInventors: Olav Inderberg, John A. Johansen
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Publication number: 20120271823Abstract: A system for discovering content and metadata includes a processor communicatively coupled to a communication network and a database. The processor determines whether an end portion of a portion of content has been received based on the portion of content and/or metadata. The processor generates a content fingerprint based on the portion of content if the end portion has been received. The content fingerprint and/or the metadata are stored in the database.Type: ApplicationFiled: April 25, 2011Publication date: October 25, 2012Applicant: ROVI TECHNOLOGIES CORPORATIONInventors: Joonas Asikainen, Brian Kenneth Vogel, John Johansen
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Publication number: 20120031622Abstract: The present invention regards a joint for use in a riser (1) extending between a floating installation (3) and a subsea installation (2). The joint comprises an inner pipe segment (21) and an outer pipe segments (22), arranged moveable relative each other in an axial direction and connectable to respective riser segments, forming a chamber (23) between them with a radially extending piston (24), dividing the chamber (23) in a first chamber part (25) and a second chamber part (26), wherein on of said chamber parts (25) in an initial position of the joint is adapted to contain a mainly incompressible fluid, this chamber part (25) decreasing in volume as the inner pipe segment (21) is moved relatively out of the outer pipe segment (22).Type: ApplicationFiled: February 5, 2010Publication date: February 9, 2012Applicant: FMC KONGSBERG SUBSEA ASInventors: Hans-Paul Carlsen, Tor-Øystein Carlsen, John A. Johansen
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Publication number: 20090151956Abstract: A subsea lubricator system is disclosed which includes a lubricator tube adapted to be positioned subsea above a subsea well, a pressure control head adapted to be positioned above the lubricator tube, at least one pressure sensor adapted for sensing at least one of a pressure in the subsea well or an ambient seawater pressure proximate the pressure control head, and at least one pump that is adapted to be positioned subsea to inject a lubricant into the pressure control head at a pressure that is greater than the sensed pressure. A method of operating a subsea lubricator system positioned above a subsea well, the lubricator system including a pressure control head, is also disclosed which includes monitoring at least one of a pressure within the well and an ambient seawater pressure proximate the lubricator system, and injecting a lubricant into the pressure control head at a pressure that is greater than the monitored pressure.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Inventors: John Johansen, Olav Inderberg
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Publication number: 20090127485Abstract: The present invention describes a valve actuator having a first motor (30) for moving a valve element and a second motor (30?) for energizing a failsafe spring (130). The second motor is operated independently from the first, thus allowing the valve element to be moved between its open and closed positions while the spring is energized. In an emergency, the spring will be de-energized and move the valve element to its failsafe position no matter the position of the valve element.Type: ApplicationFiled: December 27, 2005Publication date: May 21, 2009Applicant: FMC KONGSBERG SUBSEA ASInventors: Jorgen Wessel, Vidar Sten-Halvorsen, Torstein Kasin, John A. Johansen
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Publication number: 20080296025Abstract: A method of reducing a pressure within a first cavity of a subsea device is disclosed which includes transferring fluid within the first cavity to an accumulator, increasing a pressure of the fluid within the accumulator and, after increasing the pressure of the fluid within the accumulator, transferring at least some of the fluid in the accumulator into a second cavity, wherein the second cavity is at a higher pressure than said first cavity.Type: ApplicationFiled: December 12, 2007Publication date: December 4, 2008Inventors: Olav Inderberg, John A. Johansen
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Publication number: 20080264646Abstract: The present invention is directed to a modular actuator for subsea valves and equipment, and various methods of using same. In one illustrative embodiment, the actuator includes a hydraulic actuator, at least one housing and a self-contained hydraulic supply system positioned within the at least one housing.Type: ApplicationFiled: December 13, 2005Publication date: October 30, 2008Inventors: Vidar Sten-Halvorsen, John A. Johansen
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Patent number: 7398830Abstract: The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a configurable flow path in fluid communication with the first and second chambers, and at least one valve for configuring the flow path in a first state wherein fluid may flow within the flow path only in a direction from the first chamber toward the second chamber, and a second state wherein fluid within the flow path may flow in both directions between the first and second chambers.Type: GrantFiled: September 19, 2007Date of Patent: July 15, 2008Assignee: Advanced Micro Devices, Inc.Inventors: John A. Johansen, Vidar Sten Halvorsen, Michael R. Williams
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Publication number: 20080006411Abstract: The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a configurable flow path in fluid communication with the first and second chambers, and at least one valve for configuring the flow path in a first state wherein fluid may flow within the flow path only in a direction from the first chamber toward the second chamber, and a second state wherein fluid within the flow path may flow in both directions between the first and second chambers.Type: ApplicationFiled: September 19, 2007Publication date: January 10, 2008Inventors: John Johansen, Vidar Halvorsen, Michael Williams
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Patent number: 7287595Abstract: The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a configurable flow path in fluid communication with the first and second chambers, and at least one valve for configuring the flow path in a first state wherein fluid may flow within the flow path only in a direction from the first chamber toward the second chamber, and a second state wherein fluid within the flow path may flow in both directions between the first and second chambers.Type: GrantFiled: August 25, 2006Date of Patent: October 30, 2007Assignee: FMC Technologies, Inc.Inventors: John A. Johansen, Vidar Sten Halvorsen, Michael R. Williams
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Patent number: 7273105Abstract: A system is described for monitoring a subsea formation, which is under development. Instruments located in a completed but unconnected well are employed for providing information by a provisional monitoring unit being lowered downhole and connected to the well. Changes in the reservoir as a result of operations in other adjacent wells are intercepted by the instruments in the well and transmitted via an acoustic link to the surface.Type: GrantFiled: December 18, 2002Date of Patent: September 25, 2007Assignee: FMC Kongsberg Subsea ASInventors: John A. Johansen, Morten Sivertsen
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Publication number: 20070173957Abstract: The invention relates to a control system for a subsea installation based on CAN bus technology. A single cable forms a backbone for transmitting signals and/or power from a central control unit to a number of devices or sensors on the installation. Terminals are attached to the cable at intervals, allowing devices to be plugged in while the system is operable. A termination may also include repeaters or amplifiers for transmitting signals over longer distances.Type: ApplicationFiled: February 17, 2005Publication date: July 26, 2007Applicant: FMC KONGSBERG SUBSEA ASInventors: John Johansen, Vidar Sten-Halvorsen
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Patent number: 7159662Abstract: The present invention is directed to a system for controlling a hydraulic actuator, and various methods of using same. In one illustrative embodiment, the system comprises a first hydraulic cylinder, an isolated supply of fluid provided to the first hydraulic cylinder, the isolated supply of fluid positioned in an environment that is at a pressure other than atmospheric pressure, an actuator device coupled to the first hydraulic cylinder, the actuator device adapted to drive the first hydraulic cylinder to create the sufficient pressure in the fluid, and at least one hydraulic line operatively intermediate the first hydraulic cylinder and the hydraulic actuator, the hydraulic line supplying the sufficient pressure in the fluid to the hydraulic actuator in the remote locale.Type: GrantFiled: February 18, 2004Date of Patent: January 9, 2007Assignee: FMC Technologies, Inc.Inventors: John A. Johansen, Vidar Sten Halvorsen, Michael R. Williams
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Publication number: 20060283600Abstract: The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a configurable flow path in fluid communication with the first and second chambers, and at least one valve for configuring the flow path in a first state wherein fluid may flow within the flow path only in a direction from the first chamber toward the second chamber, and a second state wherein fluid within the flow path may flow in both directions between the first and second chambers.Type: ApplicationFiled: August 25, 2006Publication date: December 21, 2006Inventors: John Johansen, Vidar Halvorsen, Michael Williams