Patents Assigned to Tendeka AS
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Publication number: 20230336252Abstract: A method for use in controlling pressure based signal transmission within a fluid in a flowline includes transmitting a pressure based signal through a fluid within a flowline using a flow control device, recognising a condition change associated with the flowline, and then controlling the flow control device in accordance with the condition change. Another method, or an associated method for use in communication within a flowline includes determining or composing an optimised pressure based signal for detection at a remote location and then transmitting the optimised signal using a flow control device.Type: ApplicationFiled: June 23, 2023Publication date: October 19, 2023Applicant: Tendeka B.V.Inventors: Bard TINNEN, Havar SORTVEIT
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Patent number: 11722228Abstract: A method for use in controlling pressure based signal transmission within a fluid in a flowline includes transmitting a pressure based signal through a fluid within a flowline using a flow control device, recognising a condition change associated with the flowline, and then controlling the flow control device in accordance with the condition change. Another method, or an associated method for use in communication within a flowline includes determining or composing an optimised pressure based signal for detection at a remote location and then transmitting the optimised signal using a flow control device.Type: GrantFiled: February 20, 2013Date of Patent: August 8, 2023Assignee: TENDEKA B.V.Inventors: Bard Tinnen, Havar Sortveit
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Patent number: 11434722Abstract: A downhole flow control device and associated method, wherein the downhole flow device is configured for use with a tubing string, the downhole flow device including a flow path configured to permit flow between external and internal locations of a tubing string; a barrier member configured to selectively vary the flow path; and a receiver configured to receive a control signal to permit control of the barrier member. Beneficially, the downhole flow device may be at least partially operable by fluid or fluid pressure from the tubing string or wellbore. Corresponding fracking valve assemblies, completion assemblies, inflow control device and hydraulic distribution modules may be provided.Type: GrantFiled: January 21, 2015Date of Patent: September 6, 2022Assignee: TENDEKA ASInventors: Annabel Green, Colin Mackie, Allan Gill
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Patent number: 11041370Abstract: A power generator for use in a bore, the power generator comprising at least one drivable member; and at least one generation apparatus; the generation apparatus comprising at least one generator magnet for producing a magnetic field; and at least one electrically conductive member located or locatable within the magnetic field; wherein the drivable member is drivable by fluid flowing in the bore so as to produce relative motion of the at least one magnet and the at least one electrically conductive member in order to induce a current in the at least one electrically conductive member.Type: GrantFiled: January 16, 2014Date of Patent: June 22, 2021Assignee: TENDEKA B.V.Inventors: Annabel Green, Garth Naldrett, Calum Crawford, John Hunter, Ian David McWhinnie, Tim Collyer
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Patent number: 11028671Abstract: A turbine has a flow pathway with an inlet in communication with the fluid channel. A rotor is disposed in the flow pathway and is rotatable around a rotation axis under the action of fluid flowing along the flow pathway. The rotation axis of the rotor is oblique to an axis extending along the fluid channel. The outlet of flow pathway may return fluid to the fluid channel. The turbine may also be provided with a flow control arrangement so as to vary the flow of fluid past the rotor and to prevent the rotor from damage. The rotor may be positioned apart from the fluid channel and so as not to obstruct the fluid channel.Type: GrantFiled: September 29, 2015Date of Patent: June 8, 2021Assignee: Tendeka ASInventor: John Hunter
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Patent number: 10648327Abstract: The flow control device includes a flow path, a compensation chamber and a regulator assembly defining a first surface exposed to the flow path and an opposing second surface which is exposed to the compensation chamber. A drive arrangement is provided for moving the regulator assembly to vary the flow path. Fluid flowing through the flow path establishes a pressure which varies across the first surface of the regulator assembly. The compensation chamber is in pressure communication with a localised region of the first surface which is selected to establish a compensation chamber pressure which acts against the second surface of the regulator assembly to bias the regulator assembly in a desired direction. The first surface of the regulator assembly may define a profile configured to minimise the variation in pressure applied over the first surface by action of fluid flowing through the flow path.Type: GrantFiled: February 20, 2013Date of Patent: May 12, 2020Assignee: TENDEKA B.V.Inventors: Bard Tinnen, Havar Sortveit
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Patent number: 10392960Abstract: A turbine for use in extracting energy from fluid flowing along a fluid channel defines a portion of the fluid channel and includes a flow pathway in communication with the fluid channel. A moveable element, such as a rotor, is disposed around the fluid channel and is moveable under the action of fluid flowing along the flow pathway so as to extract energy therefrom. The turbine may be associated with other apparatus in the fluid system, and may be capable of storing extracted energy for later use.Type: GrantFiled: October 6, 2015Date of Patent: August 27, 2019Assignee: Tendeka ASInventors: John Hunter, Ian David McWhinnie, Sally Tamsin Wood
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Patent number: 10370929Abstract: A downhole seal system comprising at least one a deformable member; and at least one expandable seal; wherein the deformable member is provided proximate, adjacent, against, or fixed to the expandable seal. Optionally, the expandable seal is or comprises a swellable seal and/or the deformable member comprises or at least partially defines a seal receiving groove and at least part of the expandable seal is received or receivable within the seal receiving groove such that the expandable seal is expandable so as to deform the deformable member and thereby increase an outer diameter or extent of the deformable member. Also described is an associated deformable member and fixing member and associated methods for producing and using the seal system.Type: GrantFiled: April 30, 2014Date of Patent: August 6, 2019Assignee: Tendeka B.V.Inventors: Neil Anderson, Colin Mackie
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Patent number: 9840877Abstract: A downhole protection apparatus, for use in protecting downhole control lines, comprises a sheath defining a channel configured to receive a control line. The sheath is configured to be attached to a tubing. In wellbore applications, the control lines associated with a tubing are inserted into the sheath such that the body of the sheath at least partially encompasses the control line and shields the control line from harsh downhole conditions which may include abrasive action from sand, proppants, wellbore cuttings and other debris. Therefore, the apparatus is configured such that after insertion of a control line into the channel, a body of the sheath protects the control line from an outside environment.Type: GrantFiled: May 2, 2014Date of Patent: December 12, 2017Assignee: Tendeka B.V.Inventor: Chris Blackmon
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Publication number: 20170306725Abstract: A turbine has a flow pathway with an inlet in communication with the fluid channel. A rotor is disposed in the flow pathway and is rotatable around a rotation axis under the action of fluid flowing along the flow pathway. The rotation axis of the rotor is oblique to an axis extending along the fluid channel. The outlet of flow pathway may return fluid to the fluid channel. The turbine may also be provided with a flow control arrangement so as to vary the flow of fluid past the rotor and to prevent the rotor from damage. The rotor may be positioned apart from the fluid channel and so as not to obstruct the fluid channel.Type: ApplicationFiled: September 29, 2015Publication date: October 26, 2017Applicant: Tendeka ASInventor: John HUNTER
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Publication number: 20150008646Abstract: A downhole seal assembly comprises a base pipe upon which is mounted a seal element and a ring member, wherein the ring member is located adjacent an end region of the seal element. The ring member and seal element are adhered together with a bonding agent.Type: ApplicationFiled: September 22, 2014Publication date: January 8, 2015Applicant: TENDEKA B.V.Inventor: Graeme MCROBB
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Patent number: 8910945Abstract: A downhole seal assembly comprises a base pipe upon which is mounted a seal element and a ring member, wherein the ring member is located adjacent an end region of the seal element. The ring member and seal element are adhered together with a bonding agent.Type: GrantFiled: March 11, 2011Date of Patent: December 16, 2014Assignee: Tendeka B.V.Inventor: Graeme McRobb
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Publication number: 20130001881Abstract: A downhole seal assembly comprises a base pipe upon which is mounted a seal element and a ring member, wherein the ring member is located adjacent an end region of the seal element. The ring member and seal element are adhered together with a bonding agent.Type: ApplicationFiled: March 11, 2011Publication date: January 3, 2013Applicant: TENDEKA B.V.Inventor: Graeme McRobb