Patents by Inventor John Mervyn Cook
John Mervyn Cook 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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Publication number: 20240117682Abstract: A cutting element assembly includes a cutter support including a cutter bore. A cutting element is in the cutter bore and a resilient element is integral with the cutter support. The resilient element is longitudinally compressible and has a displacement of greater than 0.1 mm and optionally less than 2 mm. Another cutting assembly includes a cutter support coupled to multiple cutting elements. A resilient element of the cutter support is compressible based on a force applied to the cutter support through one or more of the cutting elements. The resilient element can include a slit in the cutter support. A slit may, for instance, extend perpendicular or transverse to an axis of the cutting elements and allow the cutter support to flex and close off or reduce a size of the slit when forces act on one or more of the cutting elements.Type: ApplicationFiled: September 26, 2023Publication date: April 11, 2024Inventors: David Robert Evan Snoswell, Ashley Bernard Johnson, Mauro Caresta, John Mervyn Cook
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Patent number: 11822039Abstract: In a drill bit which has hard-faced cutting or gauge protection elements positioned to be in direct contact with subterranean formation as the bit is rotated, at least one of these elements includes a window positioned to be in direct contact with the formation or cuttings from the formation as the bit rotates and moves forward to drill into the formation. Electromagnetic radiation with wavelength in the range from 100 nm to 2600 nm is transmitted through the window to the formation in contact with the window. Electromagnetic radiation such as fluorescence that returns through the same window is received by a spectrometer. The source and receiver of electromagnetic radiation are both accommodated within the downhole drilling equipment but spaced from the windowed element. The electromagnetic radiation travels along light guides from the source to the window and from the window to the receiver.Type: GrantFiled: October 8, 2020Date of Patent: November 21, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan Robert Hird, Ashley Bernard Johnson, John Mervyn Cook
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Publication number: 20230332496Abstract: A drilling system includes an internal assembly comprising a chassis, a flow diverter, or both, and a strain gauge coupled to the chassis, the flow diverter, or both, in which the strain gauge is configured to output a signal associated with a strain deformation of the internal assembly. The drilling system also includes a drill collar coupled to the internal assembly, in which the internal assembly extends along the drill collar, and the drill collar encloses the internal assembly of the internal assembly such that a strain deformation of the drill collar causes the strain deformation of the internal assembly.Type: ApplicationFiled: June 23, 2023Publication date: October 19, 2023Inventors: Joachim Sihler, John George Allen Charlesworth, Adam Ian Bowler, Michael Hayes Kenison, John Mervyn Cook
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Patent number: 11732570Abstract: A drilling system includes an internal assembly comprising a chassis, a flow diverter, or both, and a strain gauge coupled to the chassis, the flow diverter, or both, in which the strain gauge is configured to output a signal associated with a strain deformation of the internal assembly. The drilling system also includes a drill collar coupled to the internal assembly, in which the internal assembly extends along the drill collar, and the drill collar encloses the internal assembly of the internal assembly such that a strain deformation of the drill collar causes the strain deformation of the internal assembly.Type: GrantFiled: July 30, 2020Date of Patent: August 22, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Joachim Sihler, John George Allen Charlesworth, Adam Ian Bowler, Michael Hayes Kenison, John Mervyn Cook
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Publication number: 20220381938Abstract: In a drill bit which has hard-faced cutting or gauge protection elements positioned to be in direct contact with subterranean formation as the bit is rotated, at least one of these elements includes a window positioned to be in direct contact with the formation or cuttings from the formation as the bit rotates and moves forward to drill into the formation. Electromagnetic radiation with wavelength in the range from 100 nm to 2600 nm is transmitted through the window to the formation in contact with the window. Electromagnetic radiation such as fluorescence that returns through the same window is received by a spectrometer. The source and receiver of electromagnetic radiation are both accommodated within the downhole drilling equipment but spaced from the windowed element. The electromagnetic radiation travels along light guides from the source to the window and from the window to the receiver.Type: ApplicationFiled: October 8, 2020Publication date: December 1, 2022Inventors: Jonathan Robert Hird, Ashley Bernard Johnson, John Mervyn Cook
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Patent number: 11199060Abstract: Methods for drilling a wellbore into a subterranean formation include preparing a drilling fluid and circulating the drilling fluid in the wellbore while drilling in the subterranean formation, forming a filtercake from the drilling fluid, creating or encountering one or more fractures in the subterranean formation while drilling, and allowing a portion of the filtercake formed to at least partially seal the one or more fractures while continuing the drilling.Type: GrantFiled: March 1, 2016Date of Patent: December 14, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Mervyn Cook, Quanxin Guo, Paul William Way, Louise Bailey, Simon James, Salim Taoutaou
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Publication number: 20210032974Abstract: A drilling system includes an internal assembly comprising a chassis, a flow diverter, or both, and a strain gauge coupled to the chassis, the flow diverter, or both, in which the strain gauge is configured to output a signal associated with a strain deformation of the internal assembly. The drilling system also includes a drill collar coupled to the internal assembly, in which the internal assembly extends along the drill collar, and the drill collar encloses the internal assembly of the internal assembly such that a strain deformation of the drill collar causes the strain deformation of the internal assembly.Type: ApplicationFiled: July 30, 2020Publication date: February 4, 2021Inventors: Joachim Sihler, John George Allen Charlesworth, Adam Ian Bowler, Michael Hayes Kenison, John Mervyn Cook
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Publication number: 20200284109Abstract: Methods for drilling a wellbore into a subterranean formation include preparing a drilling fluid and circulating the drilling fluid in the wellbore while drilling in the subterranean formation, forming a filtercake from the drilling fluid, creating or encountering one or more fractures in the subterranean formation while drilling, and allowing a portion of the filtercake formed to at least partially seal the one or more fractures while continuing the drilling.Type: ApplicationFiled: March 1, 2016Publication date: September 10, 2020Inventors: John Mervyn COOK, Quanxin GUO, Paul William WAY, Louise BAILEY, Simon JAMES, Salim TAOUTAOU
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Publication number: 20160244654Abstract: A drilling fluid for use when drilling a borehole includes solid polymeric objects as a lost circulation additive. The objects have an overall size extending at least 0.5 mm in each of three orthogonal dimensions have a shape such that each object has one or more edges, points or corners and/or comprises a core portion with a plurality of projections which extend out from the core portion. The objects may be moulded, 3D-printed or chopped from larger pieces of polymer by granulating machinery. Shapes with edges, points, corners or projections assisting the objects in lodging within and bridging a fracture encountered or formed while drilling.Type: ApplicationFiled: September 23, 2014Publication date: August 25, 2016Inventors: Paul WAY, David SNOSWELL, John Mervyn COOK, Louise BAILEY, Gokturk TUNC, Elizabeth Alice Gilchrist JAMIE, Walter ALDRED
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Publication number: 20120277995Abstract: Acoustic monitoring is carried out using a fiber optic cable. Coherent Rayleigh noise generated by the transmission of a coherent beam of radiation through the fiber optic cable is detected, a phase of the coherent Rayleigh noise is measured and the measured phase is processed to identify an acoustic occurrence along the fiber optic cable. In certain aspects, an optical fiber serves as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. The distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fiber optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, or production logging.Type: ApplicationFiled: June 20, 2012Publication date: November 1, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: ARTHUR H. HARTOG, J. ERNEST BROWN, JOHN Mervyn COOK, JONATHAN ELPHICK, PAUL S. HAMMOND, ASHLEY BERNARD JOHNSON
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Patent number: 8225867Abstract: Acoustic monitoring is carried out using a fiber optic cable. Coherent Rayleigh noise generated by the transmission of a coherent beam of radiation through the fiber optic cable is detected, a phase of the coherent Rayleigh noise is measured and the measured phase is processed to identify an acoustic occurrence along the fiber optic cable. In certain aspects an optical fiber serves as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. The distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fiber optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, or production logging.Type: GrantFiled: April 13, 2011Date of Patent: July 24, 2012Assignee: Schlumberger Technology CorporationInventors: Arthur H Hartog, J Ernest Brown, John Mervyn Cook, Jonathan Elphick, Paul S Hammond, Ashley Bernard Johnson
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Publication number: 20110188344Abstract: This disclosure relates in general to a method and system for acoustic monitoring using a fibre optic cable. More specifically, but not by way of limitation, embodiments of the present invention provide for using an optical fiber as a distributed interferometer that may be used to monitor a conduit, wellbore or reservoir. In certain aspects, the distributed interferometric monitoring provides for accurate detection of acoustic occurrences along the fibre optic cable and these acoustic occurrences may include fluid flow in a pipeline or wellbore, processes taking place in a wellbore or pipeline, fracturing, gravel packing, production logging and/or the like.Type: ApplicationFiled: April 13, 2011Publication date: August 4, 2011Applicant: Schlumberger Technology CorporationInventors: Arthur H. Hartog, J. Ernest Brown, John Mervyn Cook, Jonathan Elphick, Paul S. Hammond, Ashley Bernard Johnson
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Patent number: 7946341Abstract: Acoustic monitoring of a conduit, a wellbore or a reservoir associated with hydrocarbon production or transportation and/or carbon dioxide sequestration is carried out using a fibre optic cable extending along or appurtenant to it as a distributed interferometer. Coherent Raleigh noise generated by the transmission of the coherent beam of radiation through the fiber optic is detected and processed to identify an acoustic occurrence.Type: GrantFiled: November 2, 2007Date of Patent: May 24, 2011Assignee: Schlumberger Technology CorporationInventors: Arthur H. Hartog, J. Ernest Brown, John Mervyn Cook, Jonathan Elphick, Paul S. Hammond, Ashley Bernard Johnson
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Patent number: 7784339Abstract: The present invention provides an apparatus an methods for detecting the behavior of perforations in a wellbore casing, the apparatus including a sensor array movable within the internal diameter of the casing, the sensor array having one or more sensors located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.Type: GrantFiled: November 16, 2005Date of Patent: August 31, 2010Assignee: Schlumberger Technology CorporationInventors: John Mervyn Cook, Ashley Bernard Johnson
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Publication number: 20090114386Abstract: This disclosure relates in general to a method and system for monitoring a conduit, a wellbore or a reservoir associated with hydrocarbon production or transportation and/or carbon dioxide sequestration. More specifically, but not by way of limitation, embodiments of the present invention provide for using an optical fiber as a distributed interferometer that may be used to monitor the conduit, wellbore or reservoir.Type: ApplicationFiled: November 2, 2007Publication date: May 7, 2009Inventors: Arthur H. Hartog, J. Ernest Brown, John Mervyn Cook, Jonathan Elphick, Paul S. Hammond, Ashley Bernard Johnson
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Publication number: 20080307877Abstract: The present invention provides an apparatus an methods for detecting the behavior of perforations in a wellbore casing, the apparatus including a sensor array movable within the internal diameter of the casing, the sensor array having one or more sensors located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.Type: ApplicationFiled: November 16, 2005Publication date: December 18, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Mervyn Cook, Ashley Bernard Johnson
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Patent number: 6896074Abstract: The present invention provides methods and systems for making measurements associated with a rock formation including a main borehole, a microborehole extending from the main borehole into the rock formation, and one or more sensing devices positioned and arranged to make a measurement at measurement zones being located in the microborehole. A packer can also be installed in the microborehole dimensioned and arranged to hydraulically isolate the measurement zones from conditions present in other parts of the microborehole and/or main borehole. Methods and systems are also provided for taking fluid samples and injecting fluid tracers in a microborehole.Type: GrantFiled: October 9, 2002Date of Patent: May 24, 2005Assignee: Schlumberger Technology CorporationInventors: John Mervyn Cook, Iain Cooper, Benjamin Peter Jeffryes, Richard Timothy Coates, William Li-Tien Wang, Paul Hammond, Philip Christie, David Nichols, Paul Bolchover
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Patent number: 6772066Abstract: A method and system is disclosed for interactively displaying estimated stability of rock surrounding a wellbore. The display shows a three-dimensional representation of the orientation of a portion of the wellbore and the associated estimation of stability of the rock surrounding the wellbore. The user can alter the orientation of the portion of the wellbore, after which in real time the stability estimation is recalculated and redisplayed. The method and system can be used for planning or modifying a well plan, either before or during the drilling process. The method and system can also be used for diagnosis of stability problems. The method and system can also be used for displaying and analyzing the estimated stability of perforations surrounding a wellbore and for planning and arranging such perforations.Type: GrantFiled: June 17, 2002Date of Patent: August 3, 2004Assignee: Schlumberger Technology CorporationInventor: John Mervyn Cook
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Patent number: 6766254Abstract: A method and system for real time updating of an earth model. The efficiency with which an oil or gas well is constructed can be enhanced by updating the relevant earth model using real-time measurements of the effective density of the drilling fluid and other parameters. The method includes generating an earth model used for predicting potential problems in drilling of a borehole having a predetermined trajectory. Evaluations of the state of the borehole and local geological features are obtained which are based on the earth model. Real time data is used to create a diagnosis of the state of the borehole and local geological features. The evaluations are compared with a diagnosis to identify inconsistencies. A component of the earth model is identified that is both related to the identified inconsistency and has a high degree of uncertainty. The selected component of the earth model is then updated prior to completing construction of the borehole using the received data.Type: GrantFiled: August 5, 2002Date of Patent: July 20, 2004Assignee: Schlumberger Technology CorporationInventors: Ian Bradford, John Mervyn Cook, John Fuller, Walter David Aldred, Vidhyadhar Gholkar
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Publication number: 20040069487Abstract: Methods and systems are disclosed for making measurements associated with a rock formation including a main borehole, a microborehole extending from the main borehole into the rock formation, and one or more sensing devices positioned and arranged to make a measurement at measurement zones being located in the microborehole. A packer can also be installed in the microborehole dimensioned and arranged to hydraulically isolate the measurement zones from conditions present in other parts of the microborehole and/or main borehole. Methods and systems are also disclosed for taking fluid samples and injecting fluid tracers in a mircoborehole.Type: ApplicationFiled: October 9, 2002Publication date: April 15, 2004Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Mervyn Cook, Iain Cooper, Benjamin Peter Jeffryes, Richard Timothy Coates, William Li-Tien Wang, Paul Hammond, Philip Christie, David Nichols, Paul Bolchover