Patents by Inventor David C. Hoyle
David C. Hoyle 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: 11788359Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: GrantFiled: September 13, 2021Date of Patent: October 17, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
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Patent number: 11767723Abstract: A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. One or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. A surge protector may be connected to the generator.Type: GrantFiled: October 17, 2021Date of Patent: September 26, 2023Assignee: Schlumberger Technology CorporationInventors: Edward George Parkin, Scott Richard Woolston, Jonathan D. Marshall, David C. Hoyle, Jim Shumway
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Patent number: 11608719Abstract: A valve includes an exterior body and an interior body. The exterior body includes an ultrahard material, at least one exterior inlet, at least one exterior outlet, and a chamber inside the exterior body and in fluid communication with the exterior inlet and the exterior outlet. The interior body is located in the chamber within the exterior body and is moveable relative to the exterior body from an open configuration to a closed configuration. The interior body includes an ultrahard material, at least one interior inlet, and at least one interior outlet.Type: GrantFiled: February 22, 2021Date of Patent: March 21, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David R. Hall, Jonathan D. Marshall, David C. Hoyle, Malcolm R. Taylor, Jordan Dane Englund
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Publication number: 20230031920Abstract: A seat assembly for a choke valve assembly includes a housing having an internal passage, in which the housing is formed from a non-superhard material. The seat assembly also includes a seat disposed within the internal passage of the housing. The seat is configured to engage a needle of the choke valve assembly while the choke valve assembly is in a closed state, and the seat is formed from a first superhard material. In addition, the seat assembly includes an annular insert disposed within the internal passage of the housing downstream from the seat. The annular insert is formed from a second superhard material, and a maximum cross-sectional area of the seat along a longitudinal axis of the seat assembly is greater than a maximum cross-sectional area of the annular insert along the longitudinal axis.Type: ApplicationFiled: January 13, 2021Publication date: February 2, 2023Inventors: Declan Elliott, Scott Dahlgren, Edmund Peter McHugh, Abinesh Gnanavelu, Jerry Allen Martino, David C. Hoyle
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Patent number: 11542805Abstract: A downhole drilling apparatus, passing through a subterranean borehole, may mark an inner wall of the borehole with a marking element. A sensor, spaced axially from the marking element on the drilling apparatus, may subsequently sense the marking as it passes. A rate of penetration of the drilling apparatus may be calculated by dividing an axial distance, between the marking element and the sensor, by a time interval, between when the marking element marks the inner wall and when the marking is sensed by the sensor. Alternately, a second sensor, spaced axially from the first, may also sense the marking. A rate of penetration may then be calculated by dividing an axial distance, between the two sensors, by a time interval, between when the two sensors sense the marking.Type: GrantFiled: June 11, 2020Date of Patent: January 3, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, David C. Hoyle, Scott Richard Woolston
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Patent number: 11255143Abstract: A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. In other embodiments, one or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. In other embodiments, a surge protector may be connected to the generator.Type: GrantFiled: August 20, 2018Date of Patent: February 22, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, Edward George Parkin, David C. Hoyle, Scott Richard Woolston, Jim Shumway
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Publication number: 20220034179Abstract: A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. One or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. A surge protector may be connected to the generator.Type: ApplicationFiled: October 17, 2021Publication date: February 3, 2022Inventors: Edward George Parkin, Scott Richard Woolston, Jonathan D. Marshall, David C. Hoyle, Jim Shumway
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Publication number: 20210404260Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: ApplicationFiled: September 13, 2021Publication date: December 30, 2021Inventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
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Patent number: 11125049Abstract: A choke valve for regulating a flow rate, a pressure or other parameters of a fluid flow may comprise a choke cage comprising a passage therethrough and a choke plug slidable within the passage. At least one conduit may pass through a wall of the choke cage and into the passage such that as the choke plug slides it may at least partially cover the conduit. A ring comprising a sintered superhard material may be secured within the conduit enhancing durability and wear resistance of the choke cage. A method for manufacturing such a choke cage may comprise subjecting grains of superhard material to high-pressure, high-temperature conditions sufficient to sinter at least some of the grains together, hollowing out the sintered superhard material to form a ring, and securing the ring within a conduit.Type: GrantFiled: January 22, 2018Date of Patent: September 21, 2021Inventors: David C. Hoyle, Neil Cannon, David S. Clark
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Patent number: 11118408Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between a the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: GrantFiled: June 26, 2018Date of Patent: September 14, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chestnutt
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Publication number: 20210172296Abstract: A valve includes an exterior body and an interior body. The exterior body includes an ultrahard material, at least one exterior inlet, at least one exterior outlet, and a chamber inside the exterior body and in fluid communication with the exterior inlet and the exterior outlet. The interior body is located in the chamber within the exterior body and is moveable relative to the exterior body from an open configuration to a closed configuration. The interior body includes an ultrahard material, at least one interior inlet, and at least one interior outlet.Type: ApplicationFiled: February 22, 2021Publication date: June 10, 2021Inventors: David R. Hall, Jonathan D. Marshall, David C. Hoyle, Malcolm R. Taylor, Jordan Dane Englund
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Publication number: 20210148406Abstract: Interfacing surfaces of adjacent tiles in a downhole tool may combine to form a tortuous path therebetween. In various embodiments, this tortuous path may run generally parallel and/or perpendicular to a top surface of the tiles. One example of such a tortuous path may be created by a protrusion extending from an interfacing surface of one of the tiles that may fit snugly within a cavity receding into an interfacing surface of another of the tiles.Type: ApplicationFiled: November 17, 2020Publication date: May 20, 2021Inventors: David C. Hoyle, Scott S. Dahlgren, David R. Hall, Malcolm R. Taylor
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Publication number: 20210131204Abstract: A downhole transducer assembly capable of being safely operated at a variety of pressures and depths may include a turbine rotatable by a fluid pressure differential rotationally fixed to a rotor in a generator. To reduce the rotational speed of the turbine and rotor, a pressure regulator may limit a fluid pressure differential by controlling the volumetric flow. In other embodiments, one or more nozzles may be configured to automatically regulate a nozzle diameter, and therefore the pressure drop across the nozzle. In other embodiments, a surge protector may be connected to the generator.Type: ApplicationFiled: August 20, 2018Publication date: May 6, 2021Inventors: Jonathan D. Marshall, Edward George Parkin, David C. Hoyle, Scott Richard Woolston, Jim Shumway
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Patent number: 10927647Abstract: A system includes a turbine, a valve, and an electronics package. The turbine is configured to generate electricity from a fluid flow through the turbine and the electronics package is configured to selectively actuate the valve between an open configuration and a closed configuration.Type: GrantFiled: November 15, 2016Date of Patent: February 23, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David R. Hall, Jonathan D. Marshall, David C. Hoyle, Malcolm R. Taylor, Jordan Dane Englund
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Publication number: 20200392829Abstract: A downhole drilling apparatus, passing through a subterranean borehole, may mark an inner wall of the borehole with a marking element. A sensor, spaced axially from the marking element on the drilling apparatus, may subsequently sense the marking as it passes. A rate of penetration of the drilling apparatus may be calculated by dividing an axial distance, between the marking element and the sensor, by a time interval, between when the marking element marks the inner wall and when the marking is sensed by the sensor. Alternately, a second sensor, spaced axially from the first, may also sense the marking. A rate of penetration may then be calculated by dividing an axial distance, between the two sensors, by a time interval, between when the two sensors sense the marking.Type: ApplicationFiled: June 11, 2020Publication date: December 17, 2020Inventors: Jonathan D. Marshall, David C. Hoyle, Scott Richard Woolston
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Publication number: 20200141188Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between a the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: ApplicationFiled: June 26, 2018Publication date: May 7, 2020Inventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
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Publication number: 20190390531Abstract: A choke valve for regulating a flow rate, a pressure or other parameters of a fluid flow may comprise a choke cage comprising a passage therethrough and a choke plug slidable within the passage. At least one conduit may pass through a wall of the choke cage and into the passage such that as the choke plug slides it may at least partially cover the conduit. A ring comprising a sintered superhard material may be secured within the conduit enhancing durability and wear resistance of the choke cage. A method for manufacturing such a choke cage may comprise subjecting grains of superhard material to high-pressure, high-temperature conditions sufficient to sinter at least some of the grains together, hollowing out the sintered superhard material to form a ring, and securing the ring within a conduit.Type: ApplicationFiled: January 22, 2018Publication date: December 26, 2019Inventors: David C. Hoyle, Neil Cannon, David S. Clark
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Publication number: 20190345796Abstract: A system includes a turbine, a valve, and an electronics package. The turbine is configured to generate electricity from a fluid flow through the turbine and the electronics package is configured to selectively actuate the valve between an open configuration and a closed configuration.Type: ApplicationFiled: November 15, 2016Publication date: November 14, 2019Inventors: David R. Hall, Jonathan D. Marshall, David C. Hoyle, Malcolm R. Taylor, Jordan Dane Englund
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Patent number: 5596142Abstract: A well logging apparatus adapted to be moved inside a borehole includes an elongate body, a measuring pad adapted to contact the wall of the borehole, a support device for the pad mounted pivotally on one side of the body, and a counter arm which causes the pad to be applied against the wall of the borehole. The support device includes an arm which carries the weight of the pad and is connected to the pad substantially in the central part thereof.Type: GrantFiled: January 29, 1996Date of Patent: January 21, 1997Assignee: Schlumberger Technology CorporationInventors: Alain G. M. Delpuech, David C. Hoyle, Alan J. Sallwasser, Bronislaw Seeman
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Patent number: 5528556Abstract: The invention concern a combination well logging device adapted to be moved inside a borehole to measure the properties of geological formations through which the borehole passes.The device according to the invention comprises a series of elongate logging sections mounted end to end, including a first section adapted to be maintained with a generatrix applied against the wall of the borehole, a second section comprising a body and a measurement pad adapted to be spaced radially from the body for application against said wall, a third section adapted to be kept space from said wall, and first and second hinges connecting the second section to the first and third sections respectively in order to allow respective angles of inclination between the second section and the first and third sections.Type: GrantFiled: September 30, 1994Date of Patent: June 18, 1996Assignee: Schlumberger Technology CorporationInventors: Bronislaw Seeman, Alain G. M. Delpuech, David C. Hoyle