Patents by Inventor Magnar Tveiten
Magnar Tveiten 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: 9587463Abstract: A valve system for use in a wellbore includes a side pocket mandrel and one or more well tools, where the side pocket mandrel includes an elongated body section provided with a connector at its ends, the elongated body section being provided with a substantially fully open main bore for alignment with the well tubing and an offset side pocket bore. At least one through opening is provided in the side pocket mandrel, leading into the side pocket bore, and at least one through opening is provided in the internal wall, leading into the main bore, where the at least two openings are in fluid communication through the side pocket bore, in which side pocket bore at least two valves are arranged in series to form a double fluid barrier between the main bore and an outside of the pocket mandrel, the at least two valves being independently retrievable through at least one installation opening arranged in the internal wall of the side pocket mandrel.Type: GrantFiled: June 16, 2014Date of Patent: March 7, 2017Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Magnar Tveiten, Erling Kleppa, Øyvind Stokka, Ole Sevheim
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Patent number: 9580991Abstract: A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.Type: GrantFiled: March 15, 2012Date of Patent: February 28, 2017Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Kristian Harestad, Helge Skorve, Magnar Tveiten
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Patent number: 9500062Abstract: A valve (1) having at least one flange portion (2, 3) for securing to a wellhead Christmas tree (5) for shutting off a pipe outlet (50) from the wellhead Christmas tree (5). At least one of the flange portions (2) includes integrated devices (6a, 6b, 6, 14, 15) for operation of a second unit (10) mounted outside the valve (1).Type: GrantFiled: February 14, 2011Date of Patent: November 22, 2016Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Magnar Tveiten, Erling Kleppa, Øyvind Stokka
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Patent number: 9140096Abstract: The present invention relates to a valve system for use in a wellbore, the system comprising a side pocket mandrel and one or more well tools, where the side pocket mandrel (6) comprises an elongated body section (7) provided with connection means (8) at its ends, the elongated body section (7) being provided with a substantially fully open main bore (9) for alignment with the well tubing (3) and an offset side pocket bore (10).Type: GrantFiled: February 16, 2011Date of Patent: September 22, 2015Assignee: Petroleum Technology Company ASInventors: Magnar Tveiten, Erling Kleppa, Øyvind Stokka, Ole Sevheim
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Publication number: 20140290962Abstract: A valve system for use in a wellbore includes a side pocket mandrel and one or more well tools, where the side pocket mandrel includes an elongated body section provided with a connector at its ends, the elongated body section being provided with a substantially fully open main bore for alignment with the well tubing and an offset side pocket bore. At least one through opening is provided in the side pocket mandrel, leading into the side pocket bore, and at least one through opening is provided in the internal wall, leading into the main bore, where the at least two openings are in fluid communication through the side pocket bore, in which side pocket bore at least two valves are arranged in series to form a double fluid barrier between the main bore and an outside of the pocket mandrel, the at least two valves being independently retrievable through at least one installation opening arranged in the internal wall of the side pocket mandrel.Type: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Magnar TVEITEN, Erling KLEPPA, Øyvind STOKKA, Ole SEVHEIM
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Publication number: 20140130893Abstract: A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.Type: ApplicationFiled: March 15, 2012Publication date: May 15, 2014Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Kristian Harestad, Helge Skorve, Magnar Tveiten
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Patent number: 8684073Abstract: Present invention regards a device for injection and stimulation of fluids in a wellbore, where the device is typically is installed in Christmas trees, wellheads or subsea. The device comprises two separable sections, where the section that is mounted/arranged within the Christmas tree or wellhead, will remain in a closed position even if the other section due to external forces is broken off or in other ways is damaged.Type: GrantFiled: February 10, 2009Date of Patent: April 1, 2014Assignee: Petroleum Technology Company ASInventors: Ole Sevheim, Øyvind Stokka, Erling Kleppa, Magnar Tveiten
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Patent number: 8640776Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore (3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device is positioned outside of the outer housing (1).Type: GrantFiled: May 25, 2012Date of Patent: February 4, 2014Assignee: Petroleum Technology Company ASInventors: Magnar Tveiten, Øyvind Stokka, Erling Kleppa, Tom Norland
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Publication number: 20130291961Abstract: The present invention relates to a valve (1) comprising at least one flange portion (2, 3) for securing to a wellhead Christmas tree (5) for shutting off a pipe outlet (50) from the wellhead Christmas tree (5). According to the invention at least one of the flange portions (2) comprises integrated devices (6a, 6b, 6, 14, 15) for operation of a second unit (10) mounted outside the valve (1).Type: ApplicationFiled: February 14, 2011Publication date: November 7, 2013Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Magnar Tveiten, Erling Kleppa, Øyvind Stokka
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Publication number: 20130206239Abstract: The present invention regards a valve assembly (100) for injecting fluid, preferably a liquid, into a tubing, comprising a first and a second valve sections arranged in series within at least one outer housing (10, 11), the first valve section comprises an internal bore (13) in the housing (10) and a first sealing surface (14) and a first valve element (20) arranged movable within the bore (13) with an sealing surface (25) interacting with the first sealing surface (14) of the at least one housing (10, 11) to form a metal-metal seal, and pretension means (33) keeping the first valve section in a closed position against a hydrostatic pressure independent of tubing pressure, the second valve section arranged downstream of the first valve section and comprises an internal bore (16) in the housing (11) and a second sealing surface (17) and a second valve element (26) arranged movable within the bore (16) with a sealing surface (31) interacting with the second sealing surface (17) of the at least one housing (10,Type: ApplicationFiled: June 14, 2011Publication date: August 15, 2013Inventors: Oyvind Stokka, Magnar Tveiten, Ole Sevheim, Erling Kleppa
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Publication number: 20130140033Abstract: The present invention relates to a device which can be employed in connection with oil and/or gas wells for the purpose of increasing the well's production. The device comprises an external structure, in which external structure a first and a second pressure-influenced bellows device is mounted, where the first and second pressure-influenced bellows devices are in fluid connection with each other via a support device. At the end opposite the connection with the support device, the second pressure-influenced bellows device is connected to a movable sleeve. The device further comprises a pivotable or rotatable closing mechanism for the device, where the closing mechanism is connected to the movable sleeve.Type: ApplicationFiled: March 29, 2011Publication date: June 6, 2013Inventors: Erling Kleppa, Øyvind Stokka, Ole Sevheim, Magnar Tveiten
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Publication number: 20130133896Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore(3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device is positioned outside of the outer housing (1).Type: ApplicationFiled: May 25, 2012Publication date: May 30, 2013Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Magnar Tveiten, Øyvind Stokka, Erling Kleppe, Tom Norland
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Publication number: 20130094975Abstract: A device and an associated method, of enhancing production of hydrocarbons from a wellbore by the use of a device, where the device is arranged in a side pocket mandrel. The method, and associated device, includes means for allowing a fraction of a main production flow to enter a first flow passage (10) in the device through an inlet (11) and to mix with the fluid from a second flow passage (20) in the device, before returning the mixed flow to the main production flow.Type: ApplicationFiled: April 14, 2011Publication date: April 18, 2013Inventors: Øyvind Stokka, Magnar Tveiten, Ståle Pettersen, Erling Kleppa
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Publication number: 20120305256Abstract: The present invention relates to a valve system for use in a wellbore, the system comprising a side pocket mandrel and one or more well tools, where the side pocket mandrel (6) comprises an elongated body section (7) provided with connection means (8) at its ends, the elongated body section (7) being provided with a substantially fully open main bore (9) for alignment with the well tubing (3) and an offset side pocket bore (10).Type: ApplicationFiled: February 16, 2011Publication date: December 6, 2012Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Magnar Tveiten, Erling Kleppa, Øyvind Stokka, Ole Sevheim
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Patent number: 8291981Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing with an internal body moveable within the outer housing which in a first closed position is closed with a metal to metal seal system between the outer housing and the internal body, which internal body is operated by pressure differential across the internal body. The internal movable body is connected to the outer hollow housing by means of a retainer key. The retainer key comprises a shear arrangement and is arranged to keep the valve in a fixed closed position, where fluid pressure is to overcome the pretension of the retainer key in order to open the device. When the device is shear opened, it can be kept in this open position as the retainer key is locked to the outer hollow housing.Type: GrantFiled: September 9, 2008Date of Patent: October 23, 2012Assignee: Petroleum Technology Company ASInventors: Magnar Tveiten, Øyvind Stokka, Erling Kleppa, Tom Norland, Ole Sevheim
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Patent number: 8186440Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore (3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device is positioned outside of the outer housing (1).Type: GrantFiled: February 7, 2007Date of Patent: May 29, 2012Assignee: Petroleum Technology Company ASInventors: Magnar Tveiten, Øyvind Stokka, Erling Kleppa, Tom Norland
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Publication number: 20120125621Abstract: The present invention relates to a device which can be used in an off-shore or onshore oil and/or gas well for the purpose of increasing the production of the well. The device comprises an outer structure in which a first and a second pressure-actuated bellows device are arranged, the first and second pressure-actuated bellows device, via a support means, being in fluid communication with each other. The support means is fixedly mounted internally in the outer structure, the support means thereby delimiting an open and a closed space for respectively the first and the second pressure-actuated bellows device, wherein the closed space is filled with a fluid under pressure, whilst the open space is in fluid communication with a surrounding fluid.Type: ApplicationFiled: November 25, 2009Publication date: May 24, 2012Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Oyvind Stokka, Magnar Tveiten, Erling Kleppe, Ole Sevheim
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Patent number: 8181705Abstract: The present invention regards a device designed for injection of fluids in a well bore, typically an offshore well bore for petroleum production and gas injection/gas lift system for fluid injection. The device comprises a outer hollow housing (1) with an internal body (2) moveable within the outer housing (1) with an internal bore (3) which in a first closed position is closed with a metal to metal seal system between the outer housing (1) and the internal body (2), which internal body (2) is operated by pressure differential across the internal body (2), where the internal body (2) is designed with slots (4) forming outlets of the internal bore (3) which in an open position of the device leads to the outside of the outer housing (1).Type: GrantFiled: February 7, 2007Date of Patent: May 22, 2012Assignee: Petroleum Technology Company ASInventors: Magnar Tveiten, Øyvind Stokka, Erling Kleppa, Tom Norland
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Patent number: 8136601Abstract: A device for increasing the production flow in a production tubing, where the production tubing has at least one inlet or port for adding a fluid medium, adds the fluid medium through the at least one inlet or port at an angle ? between 90 and 0 degrees with a longitudinal axis of the production tubing. The device further has elements that provide a rotation of the added fluid medium.Type: GrantFiled: March 28, 2008Date of Patent: March 20, 2012Assignee: Petroleum Technology CompanyInventors: Magnar Tveiten, David Hutchinson, Egil Josefsen, Kristian Harestad
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Publication number: 20110042066Abstract: Present invention regards a device for injection and stimulation of fluids in a wellbore, where the device is typically is installed in Christmas trees, wellheads or subsea. The device comprises two separable sections, where the section that is mounted/arranged within the Christmas tree or wellhead, will remain in a closed position even if the other section due to external forces is broken off or in other ways is damaged.Type: ApplicationFiled: February 10, 2009Publication date: February 24, 2011Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Ole Sevheim, Oyvind Stokka, Erling Kleppa, Magnar Tveiten