Patents by Inventor Joel Lee Groves

Joel Lee Groves 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: 10229765
    Abstract: Various embodiments for shortening the overall length of a pulsed neutron generator having a high voltage power supply are disclosed, including but not limited to, providing the plurality of stages of a high voltage power supply wrapped circumferentially or helically about a radiation generator tube. Various techniques for reducing voltage differentials and mitigating the risk of arcing in these embodiments are also disclosed.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 12, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joel Lee Groves, Luke T. Perkins, Fabien Guizelin, Peter Wraight
  • Patent number: 9793084
    Abstract: Systems, methods, and devices with improved electrode configuration for downhole nuclear radiation generators are provided. For example, one embodiment of a nuclear radiation generator capable of downhole operation may include a charged particle source, a target material, and an acceleration column between the charged particle source and the target material. The acceleration column may include an intermediate electrode that remains floating at a variable potential, being electrically isolated from the rest of the acceleration column.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 17, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jani Reijonen, Joel Lee Groves
  • Patent number: 9448189
    Abstract: An apparatus for determining fluid phase fraction of a multiphase fluid mixture (13) comprises: —a x-ray generator (20) arranged to emit a x-ray radiation spectrum comprising a low energy region and a high energy region, the high energy region including a Bremsstrahlung spectrum; —a pipe section (27) through which the multiphase fluid mixture (13) flows comprising a measurement section (28), said measurement section (28) being coupled to said x-ray generator (20); —a detector (30) coupled to said measurement section (28) and arranged to detect x-ray radiation that has passed through said multiphase fluid mixture (13), the detector (30) being coupled to a multichannel analyzer (32) producing a measurement output comprising a low energy (LE) and high energy (HE) measurement counts; wherein the measurement output further comprises a low energy (LV) and high energy (HV) control counts, in a low energy and high energy control windows located on an edge of the Bremsstrahlung spectrum, respectively; and wherein the
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 20, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Roman Vladimirovich Korkin, Lev Zakharov, Oleg Zhdaneev, Joel Lee Groves
  • Patent number: 9142383
    Abstract: Illustrative embodiments of the present disclosure are directed to devices and methods for X-ray monitoring. Various embodiments of the present disclosure use a target that incorporates a monitor layer. The monitor layer is disposed adjacent to a target layer so that electrons that pass through the target layer enter the monitor layer. As electrons enter the monitor layer, electrical charge is generated within the monitor layer. This electrical charge is measured and used to determine a characteristic of the X-ray generation within the target layer.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: September 22, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Zilu Zhou, Joel Lee Groves
  • Publication number: 20130287174
    Abstract: Illustrative embodiments of the present disclosure are directed to devices and methods for X-ray monitoring. Various embodiments of the present disclosure use a target that incorporates a monitor layer. The monitor layer is disposed adjacent to a target layer so that electrons that pass through the target layer enter the monitor layer. As electrons enter the monitor layer, electrical charge is generated within the monitor layer. This electrical charge is measured and used to determine a characteristic of the X-ray generation within the target layer.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Zilu ZHOU, Joel Lee GROVES
  • Publication number: 20130208840
    Abstract: Various embodiments for shortening the overall length of a pulsed neutron generator having a high voltage power supply are disclosed, including but not limited to, providing the plurality of stages of a high voltage power supply wrapped circumferentially or helically about a radiation generator tube. Various techniques for reducing voltage differentials and mitigating the risk of arcing in these embodiments are also disclosed.
    Type: Application
    Filed: November 15, 2010
    Publication date: August 15, 2013
    Inventors: Joel Lee Groves, Luke T. Perkins, Fabien Guizelin, Peter Wraight
  • Patent number: 7507952
    Abstract: A fluid density determination apparatus and method comprising an X-ray generator emitting a high energy radiation signal and a low energy radiation signal; a sample cell housing a sample of interest and at least one of the high energy and low energy radiation signals being directed through the sample cell; and a radiation detector measuring the output radiation from the sample cell. Data gathered at the radiation detector using the high and low energy signals are used to calculate the density of the fluid sample of interest.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Joel Lee Groves, Etienne Vallee, Peter Wraight
  • Patent number: 7500388
    Abstract: A wireline-conveyed side-wall core coring tool for acquiring side-wall core from a geological formation for performing in-situ side-wall core analysis. The coring tool has a core analysis unit operable to measure geophysical properties of an acquired side-wall core. The measured geophysical properties may be used to determine the success of the acquisition of side-wall cores by the coring tool. The core analysis unit is operable of performing an in-situ interpretation of measured geophysical property of the side-wall core and transmitting in near real-time the measurements or the interpretation results to surface data acquisition and processing apparatus.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: March 10, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Go Fujisawa, Oliver C. Mullins, Peter David Wraight, Joel Lee Groves, Lennox Reid, Felix Chen, Gary Corris, Yi-Qiao Song
  • Publication number: 20070274443
    Abstract: A fluid density determination apparatus and method comprising an X-ray generator emitting a high energy radiation signal and a low energy radiation signal; a sample cell housing a sample of interest and at least one of the high energy and low energy radiation signals being directed through the sample cell; and a radiation detector measuring the output radiation from the sample cell. Data gathered at the radiation detector using the high and low energy signals are used to calculate the density of the fluid sample of interest.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: JOEL LEE GROVES, ETIENNE VALLEE, PETER WRAIGHT