Patents by Inventor William Schaecher

William Schaecher 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).

  • Publication number: 20180156031
    Abstract: A scalable communication system for data transmission in oil and gas well applications. The communication system includes a high-speed fiber optic line connecting a surface module to a downhole module. The downhole module is further connected to a tool bus which in turn is connected to one or more tool modules. Each tool module permits communication of data to and/or from one or more downhole tools. A broadband signal comprising multiple channels may be used to transmit data to and from the tool modules.
    Type: Application
    Filed: September 22, 2015
    Publication date: June 7, 2018
    Inventors: Thanh T. Tran, William Schaecher, Yumin Zhang, Daniel Stark
  • Patent number: 9926780
    Abstract: In accordance with embodiments of the present disclosure, systems and methods for sensing and communicating sensed downhole parameters using a hybrid micro-structured fiber optic cable are provided. The micro-structured fiber optic cable may be used to communicate and/or amplify sensor signals indicative of the sensed downhole parameters. These sensed downhole parameters may include one or more of a downhole temperature, pressure, magnetic field, electromagnetic energy, radioactivity, telemetry signal, or some other downhole measurement. The micro-structured fiber optic cable may include opto-electronic circuitry built into the internal structure of the cable for modulating the optical signal based on the sensed parameters. The opto-electronic circuitry may include diodes, triodes, and other components that are communicatively coupled to external sensors used to measure downhole parameters.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: March 27, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yong Zeng, William Schaecher
  • Publication number: 20170183958
    Abstract: In accordance with embodiments of the present disclosure, systems and methods for sensing and communicating sensed downhole parameters using a hybrid micro-structured fiber optic cable are provided. The micro-structured fiber optic cable may be used to communicate and/or amplify sensor signals indicative of the sensed downhole parameters. These sensed downhole parameters may include one or more of a downhole temperature, pressure, magnetic field, electromagnetic energy, radioactivity, telemetry signal, or some other downhole measurement. The micro-structured fiber optic cable may include opto-electronic circuitry built into the internal structure of the cable for modulating the optical signal based on the sensed parameters. The opto-electronic circuitry may include diodes, triodes, and other components that are communicatively coupled to external sensors used to measure downhole parameters.
    Type: Application
    Filed: July 30, 2015
    Publication date: June 29, 2017
    Inventors: Yong Zeng, William Schaecher
  • Publication number: 20070103162
    Abstract: An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 10, 2007
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Marian Morys, William Schaecher, George Goodman, Raj Pai
  • Publication number: 20070103161
    Abstract: Oil-based mud imaging systems and methods having standoff compensation. In some embodiments, disclosed logging systems include a logging tool in communication with surface computing facilities. The logging tool is provided with a sensor array having at least two voltage electrodes positioned between two current electrodes energized by an excitation source to create an oscillatory electric field in a borehole wall. The two current electrodes are each shielded with conductive shields to prevent current leakage into the logging tool body. A common mode voltage is measured, and the phase and amplitude of the excitation source is controlled to reduce the difference between the common mode voltage and reference voltage of a voltage detector. The logging tool is further provided with electronics coupled to the voltage detector and the current electrodes to determine a differential voltage between the voltage electrodes and two current flows from separate ones of the current electrodes.
    Type: Application
    Filed: September 2, 2006
    Publication date: May 10, 2007
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Luis San Martin, Humberto Rosa, Raj Pai, William Schaecher, Myrick Monroe, Marian Morys, Carl Dodge