Patents by Inventor Steven Martin Hudson
Steven Martin Hudson 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: 11795786Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: GrantFiled: September 17, 2021Date of Patent: October 24, 2023Assignee: METROL TECHNOLOGY LTD.Inventors: Shaun Compton Ross, Leslie David Jarvis, Steven Martin Hudson
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Patent number: 11732553Abstract: A well installation comprising downhole power delivery apparatus for delivering electrical power from a surface power source S to a downhole tool T. The well installation comprises downhole metallic structure (2) running down into a borehole. The apparatus comprises an electrical cable (3) for carrying electrical power from the surface power source S, a power transfer arrangement (4) and a power pick up arrangement (5). The cable 3 runs down into the borehole together with the metallic structure (2) to the power transfer arrangement (4) which is provided at a first downhole location for transferring electrical power carried by the electrical cable (3) onto the downhole metallic structure (2) for onward conduction. The power pick up arrangement (5) is provided at a second downhole location, spaced from the first, for picking up electrical power from the downhole metallic structure (2) for supply to the downhole tool T.Type: GrantFiled: July 2, 2021Date of Patent: August 22, 2023Assignee: METROL TECHNOLOGY LTD.Inventors: Steven Martin Hudson, Leslie David Jarvis
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Publication number: 20230160280Abstract: A subsurface safety valve control system including a downhole station 5 for provision in downhole metallic structure (2) of a well installation which comprises a subsurface safety valve V having an open state allowing flow through the valve and a closed state obstructing flow through the valve. The downhole station (5) is arranged for picking up electrical signals from the downhole metallic structure (2) to obtain valve control signals and for outputting control signals for controlling the subsurface safety valve V in dependence on the signals picked up from the downhole metallic structure. The downhole station (5) comprises a hardware electronics channel (5a) for handling electrical signals picked up from the downhole metallic structure and the hardware electronics channel (5a) is arranged for detecting the presence and/or absence of hold valve open signals.Type: ApplicationFiled: March 29, 2021Publication date: May 25, 2023Inventors: Shaun Compton ROSS, Steven Martin HUDSON, Leslie David JARVIS
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Publication number: 20230019444Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: ApplicationFiled: September 12, 2022Publication date: January 19, 2023Inventors: Shaun Compton ROSS, Leslie David JARVIS, Steven Martin HUDSON
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Patent number: 11454093Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: GrantFiled: December 30, 2016Date of Patent: September 27, 2022Assignee: METROL TECHNOLOGY LTD.Inventors: Shaun Compton Ross, Leslie David Jarvis, Steven Martin Hudson
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Publication number: 20220120161Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: ApplicationFiled: September 17, 2021Publication date: April 21, 2022Inventors: Shaun Compton ROSS, Leslie David JARVIS, Steven Martin HUDSON
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Patent number: 11236586Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: GrantFiled: December 30, 2016Date of Patent: February 1, 2022Assignee: METROL TECHNOLOGY LTD.Inventors: Shaun Compton Ross, Leslie David Jarvis, Steven Martin Hudson
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Patent number: 11199075Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: GrantFiled: December 30, 2016Date of Patent: December 14, 2021Assignee: METROL TECHNOLOGY LTD.Inventors: Shaun Compton Ross, Leslie David Jarvis, Steven Martin Hudson
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Publication number: 20210340843Abstract: A well installation comprising downhole power delivery apparatus for delivering electrical power from a surface power source S to a downhole tool T. The well installation comprises downhole metallic structure (2) running down into a borehole. The apparatus comprises an electrical cable (3) for carrying electrical power from the surface power source S, a power transfer arrangement (4) and a power pick up arrangement (5). The cable 3 runs down into the borehole together with the metallic structure (2) to the power transfer arrangement (4) which is provided at a first downhole location for transferring electrical power carried by the electrical cable (3) onto the downhole metallic structure (2) for onward conduction. The power pick up arrangement (5) is provided at a second downhole location, spaced from the first, for picking up electrical power from the downhole metallic structure (2) for supply to the downhole tool T.Type: ApplicationFiled: July 2, 2021Publication date: November 4, 2021Inventors: Steven Martin Hudson, Leslie David Jarvis
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Patent number: 11156062Abstract: A monitoring well installation comprising metallic casing (2) running down from the surface into a borehole and a sealing material plug (6) provided downhole for blocking the interior of the casing and sealing the borehole against the egress of fluid from a zone below the plug. There is an axial spacing (2A) between adjacent casing portions (2) in the region of the plug (6) such that there is an uncased length of borehole in which the material of the plug seals against the formation. There is provided a sensing tool (3) located below the plug (6) for sensing at least one parameter below the plug (6) and a communication arrangement (3, 4, 5) for use in transmitting data from the sensing tool (3) towards the surface. The communication arrangement comprises across plug communication apparatus (5) for facilitating transmission of signals carrying data across the plug (6) towards the surface.Type: GrantFiled: March 31, 2017Date of Patent: October 26, 2021Assignee: METROL TECHNOLOGY LTD.Inventors: Steven Martin Hudson, Leslie David Jarvis, Axel May
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Patent number: 11085271Abstract: A well installation comprising downhole power delivery apparatus for delivering electrical power from a surface power source S to a downhole tool T. The well installation comprises downhole metallic structure (2) running down into a borehole. The apparatus comprises an electrical cable (3) for carrying electrical power from the surface power source S, a power transfer arrangement (4) and a power pick up arrangement (5). The cable 3 runs down into the borehole together with the metallic structure (2) to the power transfer arrangement (4) which is provided at a first downhole location for transferring electrical power carried by the electrical cable (3) onto the downhole metallic structure (2) for onward conduction. The power pick up arrangement (5) is provided at a second downhole location, spaced from the first, for picking up electrical power from the downhole metallic structure (2) for supply to the downhole tool T.Type: GrantFiled: March 28, 2018Date of Patent: August 10, 2021Assignee: Metrol Technology Ltd.Inventors: Steven Martin Hudson, Leslie David Jarvis
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Patent number: 11085272Abstract: A downhole power delivery system for use in a well comprising downhole metallic pipe (2) running in a borehole of the well with a downhole sealing plug (31) provided in a bore or annulus at least partly defined by the downhole metallic pipe. The power delivery system comprising below plug apparatus (5) located in the borehole below the plug (31) including a downhole device (53) requiring electrical power and downhole power supply apparatus (6) located in the borehole above the plug (31). The power supply apparatus (6) comprises at least one battery (64) for powering the downhole device and the downhole power supply apparatus (6) and below plug apparatus (5) being arranged for delivering electrical power from the downhole power supply apparatus (6) to the downhole device (53) across the downhole sealing plug (31).Type: GrantFiled: March 28, 2018Date of Patent: August 10, 2021Assignee: METROL TECHNOLOGY LTD.Inventors: Steven Martin Hudson, Leslie David Jarvis
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Patent number: 11072999Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: GrantFiled: December 30, 2016Date of Patent: July 27, 2021Assignee: METROL TECHNOLOGY LTD.Inventors: Shaun Compton Ross, Leslie David Jarvis, Steven Martin Hudson
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Patent number: 10858932Abstract: A monitoring well installation comprising metallic casing (2) and a sealing material plug (6) provided downhole in the borehole for sealing the borehole against the egress of fluid from a zone below the plug. There is an uncased length of borehole at least 10 m in length in which the plug seals against the formation. There is provided a downhole sensing tool (3) located below the plug (6) and a communication arrangement (31, 5, 4) for use in transmitting data from the sensing tool towards the surface, which comprises an across plug communication apparatus (5) comprising a pair of spaced contacts (51) contacting the casing and/or the formation and a transmitter located below the plug (6) for transmitting signals carrying data across the plug towards the surface.Type: GrantFiled: March 31, 2017Date of Patent: December 8, 2020Assignee: METROL TECHNOLOGY LTDInventor: Steven Martin Hudson
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Publication number: 20200318475Abstract: A monitoring well installation comprising metallic casing (2) and a sealing material plug (6) provided downhole in the borehole for sealing the borehole against the egress of fluid from a zone below the plug. There is an uncased length of borehole at least 10 m in length in which the plug seals against the formation. There is provided a downhole sensing tool (3) located below the plug (6) and a communication arrangement (31, 5, 4) for use in transmitting data from the sensing tool towards the surface, which comprises an across plug communication apparatus (5) comprising a pair of spaced contacts (51) contacting the casing and/or the formation and a transmitter located below the plug (6) for transmitting signals carrying data across the plug towards the surface.Type: ApplicationFiled: March 31, 2017Publication date: October 8, 2020Inventor: Steven Martin HUDSON
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Publication number: 20200318462Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: ApplicationFiled: December 30, 2016Publication date: October 8, 2020Inventors: Shaun Compton ROSS, Leslie David JARVIS, Steven Martin HUDSON
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Patent number: 10704378Abstract: Downhole water level detecting apparatus for detecting the level of water in a formation in the region of a well installation. The detecting apparatus includes a transmitter for applying electrical signals to a signaling loop at a first location. The signaling loop includes a downhole metallic structure of the well installation and an earth return. The detecting apparatus also includes a detector for monitoring electrical signals in the signaling loop, and an evaluation unit arranged for determining a level of water in the formation relative to the downhole metallic structure in dependence on the monitored signals.Type: GrantFiled: May 19, 2016Date of Patent: July 7, 2020Assignee: Expro North Sea LimitedInventors: Alexandra Vasil'evna Rogacheva, Robert Charles Bromwich, Bridget Mary Weston, Steven Martin Hudson
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Patent number: 10619476Abstract: A well installation communication system includes downhole metallic structure 2, a downhole communication unit 3, and a surface communication unit 4 arranged for electrical signal communication with the downhole communication unit via a signal channel. The signal channel includes a portion of the downhole metallic structure 2, a portion of cable 5 running within the downhole metallic structure away from said portion of the downhole metallic structure towards the surface and a connection device 6. The connection device 6 is in the signal channel between the portion of metallic structure 2 and the portion of cable 5. The connection device is removeably deployed in the metallic structure, is electrically disconnectably and reconnectably connected to the metallic structure and has a connector portion to which an end of the cable is mechanically and electrically connected.Type: GrantFiled: September 17, 2013Date of Patent: April 14, 2020Assignee: Expro North Sea LimitedInventors: Steven Martin Hudson, Alexandra Vasil'evna Rogacheva
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Publication number: 20200102820Abstract: A monitoring well installation comprising metallic casing (2) running down from the surface into a borehole and a sealing material plug (6) provided downhole for blocking the interior of the casing and sealing the borehole against the egress of fluid from a zone below the plug. There is an axial spacing (2A) between adjacent casing portions (2) in the region of the plug (6) such that there is an uncased length of borehole in which the material of the plug seals against the formation. There is provided a sensing tool (3) located below the plug (6) for sensing at least one parameter below the plug (6) and a communication arrangement (3, 4, 5) for use in transmitting data from the sensing tool (3) towards the surface. The communication arrangement comprises across plug communication apparatus (5) for facilitating transmission of signals carrying data across the plug (6) towards the surface.Type: ApplicationFiled: March 31, 2017Publication date: April 2, 2020Inventors: Steven Martin HUDSON, Leslie David JARVIS, Axel MAY
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Publication number: 20190353030Abstract: Downhole electrical energy harvesting and communication in systems for well installations having metallic structure carrying electric current, for example CP current. In some instances there is a harvesting module (4) electrically connected to the metallic structure (2) at a first location and to a second location spaced from the first location, the first and second locations being chosen such that, in use, there is a potential difference therebetween due to the electric current flowing in the structure (2); and the harvesting module (4) being arranged to harvest electrical energy from the electric current. In addition or alternatively, there may be communication apparatus (4, 5, 6) for communication by modulation of the current, for example CP current, in the metallic structure (2).Type: ApplicationFiled: December 30, 2016Publication date: November 21, 2019Inventors: Leslie David JARVIS, Shaun Compton ROSS, Steven Martin HUDSON