Patents by Inventor Oguzhan Guven
Oguzhan Guven 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: 11905790Abstract: A downhole valve assembly includes a safety valve and an actuator that opens and/or closes the valve. The actuator can be an electro-hydraulic actuator (EHA), an electro mechanical actuator (EMA), or an electro hydraulic pump (EHP). The downhole safety valve can also include an electric magnet.Type: GrantFiled: February 24, 2021Date of Patent: February 20, 2024Assignee: Schlumberger Technology CorporationInventors: Christian Chouzenoux, Cash Elston, Olivier Loeuillet, Francesco Vaghi, Oguzhan Guven
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Publication number: 20240052730Abstract: Electrical gas lift valves and systems including electrical gas lift valves are provided.Type: ApplicationFiled: February 9, 2022Publication date: February 15, 2024Inventors: Ganesh Balasubramanian, Oguzhan Guven, Jason Bigelow, Naomi Crawford, Yann Dufour, Maria Tafur, Robert Krush
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Publication number: 20230147546Abstract: A completion string includes at least one isolation packer positioned between well zones of a plurality of well zones, and a sand control assembly and a circulating assembly each disposed uphole of a washdown shoe in the bottom-most well zone. A top well zone includes a return valve assembly, a production packer, and a second circulating assembly and a second sand control assembly downhole of the production packer. The completion string also includes an outer string spanning from the bottom-most well zone to the top well zone, and an inner production string concentrically arranged within the outer string, creating an inner-annulus between the outer string and inner production string. The inner-annulus is continuous from the washdown shoe to the return valve assembly, and the inner production string includes a production valve disposed between the sand control assembly and the circulating assembly in each of the bottom-most and top well zones.Type: ApplicationFiled: April 7, 2021Publication date: May 11, 2023Inventors: Jeremie Poizat, John Whitsitt, Oguzhan Guven, Michael Huh, Nabil Batita
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Publication number: 20230088984Abstract: An electronic trigger system includes a longitudinal housing including detection, electronics, and actuation sections disposed therein. The detection section includes a pressure sensor for receiving a predetermined pressure signal, and an electronic control board including at least one battery is disposed in the electronics section. The actuation section includes a prefill chamber, a setting piston disposed in the prefill chamber, an actuation device, an atmospheric chamber, and a pressure port. A predetermined amount of prefilled fluid at hydrostatic pressure is trapped between the setting piston and the actuation device in the prefill chamber. The actuation device isolates the prefilled fluid at hydrostatic pressure in the prefill chamber from the atmospheric chamber.Type: ApplicationFiled: February 18, 2021Publication date: March 23, 2023Inventors: Michael Underbrink, Yann Dufour, Kaiyang Kevin Liew, Joao Mendonca, Oguzhan Guven, Laurent Alteirac
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Publication number: 20230036187Abstract: The disclosure herein generally relates to flow control valves having mechanisms to prevent, inhibit, reduce the likelihood or extent of, and/or protect against erosion of components of the flow control valve, for example, due to the effects of leakage flow.Type: ApplicationFiled: January 20, 2021Publication date: February 2, 2023Inventors: Brad Swenson, David Clayton, David Gomez Ramirez, Oguzhan Guven, Cash Elston, Ivan Caliu Candiani, Bernardo Machado
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Publication number: 20230018892Abstract: A downhole valve assembly includes a safety valve and an actuator that opens and/or closes the valve. The actuator can be an electro-hydraulic actuator (EHA), an electro mechanical actuator (EMA), or an electro hydraulic pump (EHP). The downhole safety valve can also include an electric magnet.Type: ApplicationFiled: February 24, 2021Publication date: January 19, 2023Inventors: Christian Chouzenoux, Cash Elston, Olivier Loeuillet, Francesco Vaghi, Oguzhan Guven
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Patent number: 10428619Abstract: A controllable, multi-zone control system is provided for controlling the inflow of fluids into a completion, e.g. a lateral completion, at a plurality of well zones. According to an embodiment, flow control devices are distributed along the completion and a control module is positioned between the flow control devices, e.g. in a middle region of the completion. The control module is supplied with hydraulic actuating fluid and is electrically controllable to enable selective distribution of the hydraulic actuating fluid to selected flow control devices. The control module may be controlled via electric signals, thus controlling distribution of hydraulic actuating fluid under pressure to selected flow control devices so as to shift the selected flow control devices to a desired open or closed flow position.Type: GrantFiled: April 4, 2017Date of Patent: October 1, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Srinivas Poluchalla, Virinchi Mallela, Jerome Prost, Oguzhan Guven, Benoit Deville
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Patent number: 10233732Abstract: A technique facilitates active zonal control over the inflow of fluids into a lateral wellbore completion at individual well zones of a plurality of well zones. The completion may comprise a plurality of sand screens through which inflowing fluids pass before entering an interior of the completion, e.g. before entering an interior of a completion base pipe. A control module is positioned along the completion between well zones. The control module is controlled via electrical control signals and is operatively connected with a plurality of intelligent flow control devices which are located along the completion in corresponding well zones. Based on signals received, the control module individually controls the intelligent flow control devices to allow or block flow into an interior of the completion at each well zone.Type: GrantFiled: July 29, 2016Date of Patent: March 19, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
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Publication number: 20180283133Abstract: A controllable, multi-zone control system is provided for controlling the inflow of fluids into a completion, e.g. a lateral completion, at a plurality of well zones. According to an embodiment, flow control devices are distributed along the completion and a control module is positioned between the flow control devices, e.g. in a middle region of the completion. The control module is supplied with hydraulic actuating fluid and is electrically controllable to enable selective distribution of the hydraulic actuating fluid to selected flow control devices. The control module may be controlled via electric signals, thus controlling distribution of hydraulic actuating fluid under pressure to selected flow control devices so as to shift the selected flow control devices to a desired open or closed flow position.Type: ApplicationFiled: April 4, 2017Publication date: October 4, 2018Inventors: Srinivas Poluchalla, Virinchi Mallela, Jerome Prost, Oguzhan Guven, Benoit Deville
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Publication number: 20180030811Abstract: A technique facilitates active zonal control over the inflow of fluids into a lateral wellbore completion at individual well zones of a plurality of well zones. The completion may comprise a plurality of sand screens through which inflowing fluids pass before entering an interior of the completion, e.g. before entering an interior of a completion base pipe. A control module is positioned along the completion between well zones. The control module is controlled via electrical control signals and is operatively connected with a plurality of intelligent flow control devices which are located along the completion in corresponding well zones. Based on signals received, the control module individually controls the intelligent flow control devices to allow or block flow into an interior of the completion at each well zone.Type: ApplicationFiled: July 29, 2016Publication date: February 1, 2018Inventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
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Patent number: 9410391Abstract: A system and methodology facilitates utilization of a valve of a type which may be used as a subsea test tree. The valve comprises a valve element pivotably mounted in a housing having a passageway therethrough. The valve element may be actuated between an open position and a closed position blocking the passageway. A cutter is disposed along a first surface of the valve element and a seal system is positioned for engagement with a second surface of the valve element to provide separate cutting and sealing surfaces. Actuating the valve element from the open position to the closed position enables cutting of a conveyance, that may be positioned through the passageway, while simultaneously forming a seal along a separate surface to sealingly block the passageway.Type: GrantFiled: October 25, 2012Date of Patent: August 9, 2016Assignee: Schlumberger Technology CorporationInventors: Oguzhan Guven, Gary L. Rytlewski
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Patent number: 9068417Abstract: Pressure cycle independent indexer devices and methods include an indexing logic having a trigger sequence path defining a pressure event (e.g., one or more pressure events) between a starting slot and an actuation slot and each pressure event being located between a sequence transition point from an incoming sequence leg into an outgoing sequence leg of the trigger sequence path and a return transition point from the trigger sequence path into a return path. The indexing logic may permit cycling hydraulic pressures in a well without inadvertently cycling through the trigger sequence path.Type: GrantFiled: October 19, 2012Date of Patent: June 30, 2015Assignee: Schlumberger Technology CorporationInventors: Brad Swenson, Richard T. Caminari, Oguzhan Guven, Josh Grosman, James Gregory Braeckel, Ricardo Martinez
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Publication number: 20140209314Abstract: A system and methodology facilitates utilization of a valve and a cutter both of which may be used in a subsea test tree. The valve comprises a ball element pivotably mounted in a housing and having an exterior surface and a passageway sized to receive a conveyance therethrough. The cutter also is located in the housing but at a position spaced from the ball element. The cutter is oriented for selective severing of the conveyance. Additionally, a seal system is positioned to act against a surface of the ball element.Type: ApplicationFiled: January 28, 2013Publication date: July 31, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Oguzhan Guven
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Publication number: 20140116717Abstract: A system and methodology facilitates utilization of a valve of a type which may be used as a subsea test tree. The valve comprises a valve element pivotably mounted in a housing having a passageway therethrough. The valve element may be actuated between an open position and a closed position blocking the passageway. A cutter is disposed along a first surface of the valve element and a seal system is positioned for engagement with a second surface of the valve element to provide separate cutting and sealing surfaces. Actuating the valve element from the open position to the closed position enables cutting of a conveyance, that may be positioned through the passageway, while simultaneously forming a seal along a separate surface to sealingly block the passageway.Type: ApplicationFiled: October 25, 2012Publication date: May 1, 2014Applicant: Schlumberger Technology CorporationInventors: Oguzhan Guven, Gary L. Rytlewski
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Patent number: 8256518Abstract: A technique enables failsafe control over actuators used to actuate downhole tools. The technique may utilize a well system having a tool with an adjustable member. An actuation mechanism serves as a fail-as-is mechanism and works in cooperation with the adjustable member. The actuation member is shiftable upon receiving a predetermined input; however the actuation member does not move the adjustable member upon each shift. Once the actuation member has been shifted the requisite number of times to move the adjustable member to another position, at least one subsequent shift of the actuation member is not able to cause movement of the adjustable member. The result is a fail-as-is technique for ensuring the tool is not inadvertently actuated to another operational position.Type: GrantFiled: January 28, 2010Date of Patent: September 4, 2012Assignee: Schlumberger Technology CorporationInventors: Oguzhan Guven, Seth Conaway, Ricardo Martinez, Frank Coss
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Patent number: 8074721Abstract: A switching apparatus, system, and method configured to operate at least a dual line downhole tool via a single pressure source are provided. The switching apparatus may comprise a housing configured to contain a switching piston actuated by a fluid pressure source. The apparatus may further contain a switching valve comprising a first and second coupling passageway coupled to a switching valve housing comprising four ports. The switching piston may actuate the switching valve, alternating the coupling between a first configuration in which the four ports are communicatively coupled into two sets of ports and a second configuration in which the four ports are communicatively coupled into an alternate two sets of ports. The first configuration may configure the fluid pressure source to actuate the downhole tool in a first manner and the second configuration may configure the fluid pressure source to actuate the downhole tool in a second manner.Type: GrantFiled: March 31, 2009Date of Patent: December 13, 2011Assignee: Schlumberger Technology CorporationInventors: Oguzhan Guven, Ricardo Martinez, Steven L. Anyan
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Publication number: 20110235981Abstract: Embodiments and methods are disclosed herein that relate to a connection assembly to communicatively couple one or more cables to each other. The connection assembly includes a cable having a housing with a communication line disposed therein, a connection apparatus having a housing with a communication line disposed therein, and a weld coupling disposed between an end of the housing of the connection apparatus and an end of the housing of the cable such that the end of the housing of the connection apparatus and the end of the housing of the cable are connected to each other through the weld coupling. The communication line of the connection apparatus is communicatively coupled to the communication line of the cable, and the end of the housing of the connection apparatus has substantially the same diameter as the end of the housing of the cable.Type: ApplicationFiled: March 29, 2010Publication date: September 29, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Oguzhan Guven, Philippe Gambier
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Patent number: 7975772Abstract: A method of coupling a first control line to a second control line is provided comprising the steps of prepping the first and second control lines to respectively produce a first end and a second end. Prepping may comprise inserting a plug assembly into at least one of the first or second ends prior to facing the end containing the plug assembly. The method may further include butt-welding the first end to the second end to form a splice and providing a protective assembly to cover the splice. The plug assembly may comprise a plug member, a seal, and an end piece to couple the seal to the plug member, in some embodiments. In other embodiments, the plug assembly may comprise a plug member and a seal coupled to the plug member.Type: GrantFiled: January 5, 2009Date of Patent: July 12, 2011Assignee: Schlumberger Technology CorporationInventor: Oguzhan Guven
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Publication number: 20100212882Abstract: A switching apparatus, system, and method configured to operate at least a dual line downhole tool via a single pressure source are provided. The switching apparatus may comprise a housing configured to contain a switching piston actuated by a fluid pressure source. The apparatus may further contain a switching valve comprising a first and second coupling passageway coupled to a switching valve housing comprising four ports. The switching piston may actuate the switching valve, alternating the coupling between a first configuration in which the four ports are communicatively coupled into two sets of ports and a second configuration in which the four ports are communicatively coupled into an alternate two sets of ports. The first configuration may configure the fluid pressure source to actuate the downhole tool in a first manner and the second configuration may configure the fluid pressure source to actuate the downhole tool in a second manner.Type: ApplicationFiled: March 31, 2009Publication date: August 26, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Oguzhan Guven, Ricardo Martinez, Steven L. Anyan
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Publication number: 20100206579Abstract: A technique enables failsafe control over actuators used to actuate downhole tools. The technique may utilize a well system having a tool with an adjustable member. An actuation mechanism serves as a fail-as-is mechanism and works in cooperation with the adjustable member. The actuation member is shiftable upon receiving a predetermined input; however the actuation member does not move the adjustable member upon each shift. Once the actuation member has been shifted the requisite number of times to move the adjustable member to another position, at least one subsequent shift of the actuation member is not able to cause movement of the adjustable member. The result is a fail-as-is technique for ensuring the tool is not inadvertently actuated to another operational position.Type: ApplicationFiled: January 28, 2010Publication date: August 19, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Oguzhan Guven, Seth Conaway, Ricardo Martinez, Frank Coss