Patents by Inventor Benjamin P. Jeffryes

Benjamin P. Jeffryes 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).

  • Patent number: 8307913
    Abstract: A method to control borehole fluid flow includes detecting a drilling condition and operating at least one valve in the drill string to place an exterior of the drill string in fluid communication with an interior of the drill string in response to detecting the drilling condition.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: November 13, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Lee F. Dolman, Benjamin P. Jeffryes, Ashley B. Johnson, Brian Clark, John A. McCullagh
  • Patent number: 8235145
    Abstract: The present invention recites a method, system and apparatus, wherein said method, system and apparatus comprises a gauge pad for a rotary component received within a borehole, the gauge pad comprising an exterior surface dimensioned for rotation in close proximity to the borehole, a pocket extending through the exterior surface, the pocket in fluid communication with a pressurized fluid source, and wherein the exterior surface is dimensioned such that when a pressurized fluid is discharged through the pocket, the velocity of the fluid through a gap between the exterior surface and borehole creates a pressure drop sufficient to pull the rotary component toward the gauge pad.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 7, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Kjell Haugvaldstad, Ashley Johnson, Geoffrey C. Downton, Walter David Aldred, Frank F. Espinosa, Benjamin P. Jeffryes, Riadh Boualleg, Michael P. Barrett
  • Publication number: 20120188845
    Abstract: A seismic vibrator receives a pilot signal having a predetermined waveform. The pilot signal causes vibrational actuation of at least one moveable element of the seismic vibrator. A continuous seismic signal having content in a first frequency bandwidth of multiple frequencies is generated by the seismic vibrator.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Inventor: Benjamin P. Jeffryes
  • Patent number: 7963325
    Abstract: A method for fracturing a wellbore while drilling a wellbore includes inserting a drill string into a wellbore. A fluid is pumped into at least one of an interior passage in the drill string and an annular space between a wall of the wellbore and the drill string. At least one of a pressure and a temperature of the fluid proximate a lower end of the drill string is measured and the measurements are transmitted to the surface substantially contemporaneously with the measuring. At least one of a flow rate and a pressure of the fluid is controlled in response to the measurements to selectively create fractures in formations adjacent to the wellbore.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 21, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Ashley Johnson, Benjamin P. Jeffryes, J. Ernest Brown
  • Publication number: 20110139508
    Abstract: The present invention recites a method, system and apparatus, wherein said method, system and apparatus comprises a gauge pad for a rotary component received within a borehole, the gauge pad comprising an exterior surface dimensioned for rotation in close proximity to the borehole, a pocket extending through the exterior surface, the pocket in fluid communication with a pressurized fluid source, and wherein the exterior surface is dimensioned such that when a pressurized fluid is discharged through the pocket, the velocity of the fluid through a gap between the exterior surface and borehole creates a pressure drop sufficient to pull the rotary component toward the gauge pad.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 16, 2011
    Inventors: KJELL HAUGVALDSTAD, Ashley Johnson, Geoffrey C. Downton, Walter David Aldred, Frank F. Espinosa, Benjamin P. Jeffryes, Riadh Boualleg, Michael P. Barrett
  • Patent number: 7913775
    Abstract: A core sample acquisition device includes a core receiving barrel configured to couple to a drill string proximate a core drilling bit. The device includes a sensor for determining a property of a core sample urged into the receiving barrel by drilling the core sample. The sample acquisition device includes a communication device for transmitting signals from the sensor over at least one of an electrical and an optical communication channel associated with the drill string.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 29, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Benjamin P. Jeffryes, Lee Dolman
  • Patent number: 7857075
    Abstract: A method related to restarting a drilling process includes the steps of applying a surface torque to a drill string in a borehole, detecting signals related to one of a torque and a rotational speed experienced at a bottom hole assembly, initiating drilling fluid flow, and lowering a drill bit to a bottom of the borehole. The surface torque or the drilling fluid flow is maintained or changed based on the signals related to the torque or rotational speed.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 28, 2010
    Assignee: Schlumberger Technology Corporation
    Inventor: Benjamin P. Jeffryes
  • Publication number: 20090272580
    Abstract: A method to control borehole fluid flow includes detecting a drilling condition and operating at least one valve in the drill string to place an exterior of the drill string in fluid communication with an interior of the drill string in response to detecting the drilling condition.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lee F. Dolman, Benjamin P. Jeffryes, Ashley B. Johnson, Brian Clark, John A. McCullagh
  • Patent number: 7597142
    Abstract: A technique enables sensing one or more wellbore parameters along a specific well zone. A section of instrumented coiled tubing is provided with a sensor array extending along its exterior. The sensor array is designed to sense well fluid related parameters and may comprise an optical fiber sensor. A cross-over allows the sensor array to communicate with a surface location via a control line routed along a coiled tubing interior.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 6, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur H. Hartog, Hubertus V. Thomeer, Martin E. Poitzsch, Benjamin P. Jeffryes
  • Publication number: 20090166088
    Abstract: A core sample acquisition device includes a core receiving barrel configured to couple to a drill string proximate a core drilling bit. The device includes a sensor for determining a property of a core sample urged into the receiving barrel by drilling the core sample. The sample acquisition device includes a communication device for transmitting signals from the sensor over at least one of an electrical and an optical communication channel associated with the drill string.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Benjamin P. Jeffryes, Lee Doman
  • Publication number: 20090145660
    Abstract: A method for fracturing a wellbore while drilling a wellbore includes inserting a drill string into a wellbore. A fluid is pumped into at least one of an interior passage in the drill string and an annular space between a wall of the wellbore and the drill string. At least one of a pressure and a temperature of the fluid proximate a lower end of the drill string is measured and the measurements are transmitted to the surface substantially contemporaneously with the measuring. At least one of a flow rate and a pressure of the fluid is controlled in response to the measurements to selectively create fractures in formations adjacent to the wellbore.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: ASHLEY JOHNSON, Benjamin P. Jeffryes, J. Ernest Brown
  • Publication number: 20090145661
    Abstract: A system and method for detecting a cuttings bed that includes a drill bit, a drillstring and a cuttings bed detector. The cuttings bed detector is positioned uphole of the drill bit. The method includes the steps of positioning a drill bit downhole, and positioning a cuttings bed detector uphole of the drill bit.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Benjamin P. Jeffryes, Bruce W. Boyle
  • Publication number: 20090139767
    Abstract: A method related to restarting a drilling process is provided. The method includes the steps of applying a surface torque to a drill string in a borehole, detecting signals related to one of a torque and a rotational speed experienced at a bottom hole assembly, initiating drilling fluid flow, and lowering a drill bit to a bottom of the borehole. The surface torque or the drilling fluid flow is maintained or changed based on the signals related to the torque or rotational speed.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: BENJAMIN P. JEFFRYES
  • Publication number: 20090101340
    Abstract: A technique that is usable with a well includes deploying at least one sensing device in the well and during a leak off test, communicating a signal that is indicative of a measurement that is acquired by the sensing device(s) over a wired infrastructure of a drill string. The technique includes controlling the leak off test based at least in part on the communication.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 23, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Benjamin P. Jeffryes
  • Publication number: 20090033176
    Abstract: A technique is provided by which energy is physically/mechanically transmitted down through a wellbore. The transmitted energy is directed downhole along a fluid channel and impinges on an energy converter positioned in the wellbore or at another subterranean location. The energy converter converts the physical energy into electrical energy that can be supplied to a downhole device.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Songming Huang, Thomas D. MacDougall, Benjamin P. Jeffryes
  • Publication number: 20080142212
    Abstract: A technique enables sensing one or more wellbore parameters along a specific well zone. A section of instrumented coiled tubing is provided with a sensor array extending along its exterior. The sensor array is designed to sense well fluid related parameters and may comprise an optical fiber sensor. A cross-over allows the sensor array to communicate with a surface location via a control line routed along a coiled tubing interior.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Arthur H. Hartog, Hubertus V. Thomeer, Martin E. Poitzsch, Benjamin P. Jeffryes
  • Patent number: 7330401
    Abstract: A method and related apparatus are described for generating acoustic signals for use in a vibratory seismic survey, including the step of combining into a drive signal a high frequency sweep signal, which sweeps upwardly through a high frequency band during a first time interval, and a low frequency sweep signal which is of lower amplitude than the high frequency sweep signal and which sweeps upwardly through a low frequency band during a second time interval, wherein the second time interval starts during the first time interval but after the beginning thereof; and applying the drive signal to a mechanical drive system for a vibratable element. The method improves the utilization of a single vibratory source.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: February 12, 2008
    Assignee: WesternGeco L.L.C.
    Inventors: Benjamin P. Jeffryes, James Edward Martin
  • Patent number: 7219726
    Abstract: An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vibrate the housing. In another arrangement, an apparatus for use in a wellbore comprises a housing and at least one impact element rotatably mounted in the housing. The at least one impact element is rotatable to oscillate back and forth to impart a vibration force to the housing.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: May 22, 2007
    Assignee: Schlumberger Technology Corp.
    Inventors: Shunfeng Zheng, Benjamin P. Jeffryes, Hubertus V. Thomeer, Lawrence J. Leising
  • Patent number: 6907927
    Abstract: An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vibrate the housing. In another arrangement, an apparatus for use in a wellbore comprises a housing and at least one impact element rotatably mounted in the housing. The at least one impact element is rotatable to oscillate back and forth to impart a vibration force to the housing.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: June 21, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Shunfeng Zheng, Benjamin P. Jeffryes, Hubertus V. Thomeer, Lawrence J. Leising
  • Patent number: 6904365
    Abstract: Systems and methods for determining a formation property related to formation strength and stresses are disclosed. A method for determining a formation strength includes obtaining radial formation property measurements at different wellbore pressures; generating a radial stress profile based on a formation model; generating a radial stress function from the radial stress profile; and comparing the radial formation property measurements with the radial stress function to determine the formation strength. A method for determining a formation stress profile includes deriving formation parameters from a formation radial profiling; obtaining formation log data that comprise formation density data; estimating formation stresses from the formation log data; and deriving a radial stress profile based on a formation model, the derived formation parameters, and the estimated formation stresses.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: June 7, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Tom R. Bratton, Bikash Kumar Sinha, Thomas J. Plona, Benjamin P. Jeffryes