Patents by Inventor Christopher Stokely

Christopher Stokely 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).

  • Distributed sensing systems and methods with I/Q data balancing based on ellipse fitting
    Patent number: 10018036
    Abstract: A system includes an optical fiber and an interrogator to provide source light to the optical fiber. The system also includes a receiver coupled to the optical fiber. The receiver includes at least one fiber optic coupler that receives backscattered light and that produces optical interferometry signals from the backscattered light. The receiver also includes photo-detectors that produce an electrical signal for each of said optical interferometry signals. The system also includes at least one digitizer that digitizes the electrical signals. The system also includes at least one processing unit that calculates I/Q data from the digitized electrical signals, corrects the I/Q data based on ellipse fitting, determines phase values based on the corrected I/Q data, and determines distributed sensing parameter values based on the phase values.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: July 10, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Andreas Ellmauthaler, Leonardo de Oliveira Nunes, David Andrew Barfoot, Christopher Stokely
  • Distributed Sensing Systems nad Methods with I/Q Data Balancing Based on Ellipse Fitting
    Publication number: 20170183959
    Abstract: A system includes an optical fiber and an interrogator to provide source light to the optical fiber. The system also includes a receiver coupled to the optical fiber. The receiver includes at least one fiber optic coupler that receives backscattered light and that produces optical interferometry signals from the backscattered light. The receiver also includes photo-detectors that produce an electrical signal for each of said optical interferometry signals. The system also includes at least one digitizer that digitizes the electrical signals. The system also includes at least one processing unit that calculates I/Q data from the digitized electrical signals, corrects the I/Q data based on ellipse fitting, determines phase values based on the corrected I/Q data, and determines distributed sensing parameter values based on the phase values.
    Type: Application
    Filed: July 30, 2014
    Publication date: June 29, 2017
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Andreas Ellmauthaler, Leonardo de Oliveira Nunes, David Andrew Barfoot, Christopher Stokely
  • Systems and Methods for Spread Spectrum Distributed Acoustic Sensor Monitoring
    Publication number: 20160146662
    Abstract: A method and device for monitoring oil field operations with a fiber optic distributed acoustic sensor (DAS) that uses a continuous wave laser light source and modulates the continuous wave output of the laser light source with pseudo-random binary sequence codes.
    Type: Application
    Filed: August 12, 2013
    Publication date: May 26, 2016
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Christopher Stokely, Neal G. Skinner, Leonardo de Oliveira Nunes
  • Systems and methods for spread spectrum distributed acoustic sensor monitoring
    Patent number: RE49680
    Abstract: A method and device for monitoring oil field operations with a fiber optic distributed acoustic sensor (DAS) that uses a continuous wave laser light source and modulates the continuous wave output of the laser light source with pseudo-random binary sequence codes.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: October 3, 2023
    Assignee: ADELOS, LLC
    Inventors: Christopher Stokely, Neal G. Skinner, Leonardo De Oliveira Nunes