Patents by Inventor David P. Sharp

David P. Sharp 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: 9608627
    Abstract: A method of controlling electrical power delivery to a well tool can include transmitting trigger light via an optical waveguide to a circuit in a well, and the circuit delivering the electrical power to the well tool in response to the circuit receiving the trigger light. A circuit for supplying electrical power to at least one well tool can include a photodiode which receives light from an optical waveguide in a well, a voltage increaser which increases a voltage output by the photodiode, and an electrical energy storage device which receives electrical energy via the voltage increaser, whereby the electrical power can be supplied to the downhole well tool from the storage device.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: March 28, 2017
    Assignee: Halliburton Energy Services
    Inventors: Neal G. Skinner, David P. Sharp
  • Patent number: 9127532
    Abstract: Fiber optic enabled casing collar locator systems and methods include a wireline sonde or a coil tubing sonde apparatus configured to be conveyed through a casing string by a fiber optic cable. The sonde includes at least one permanent magnet producing a magnetic field that changes in response to passing a collar in the casing string, a coil that receives at least a portion of the magnetic field and provides an electrical signal in response to the changes in the magnetic field, and a light source that responds to the electrical signal to communicate light along an optical fiber to indicate passing collars.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 8, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John L. Maida, Etienne M. Samson, David P. Sharp
  • Publication number: 20140219056
    Abstract: A disclosed acoustic telemetry system includes a downhole acoustic telemetry module that generates an acoustic uplink signal such as a pulsed fluid flow or compressional waves in a tubing string wall. An optical waveguide transports an optical signal representing the acoustic uplink signal to the surface interface. A related telemetry method includes acquiring measurements downhole, transmitting the measurements in the form of an acoustic signal, and sensing the acoustic signal via an optical waveguide.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 7, 2014
    Applicant: Halliburton Energy Services, Inc. ("HESI")
    Inventors: Etienne M. Samson, David P. Sharp, John L. Maida
  • Publication number: 20140203174
    Abstract: A method of controlling electrical power delivery to a well tool can include transmitting trigger light via an optical waveguide to a circuit in a well, and the circuit delivering the electrical power to the well tool in response to the circuit receiving the trigger light. A circuit for supplying electrical power to at least one well tool can include a photodiode which receives light from an optical waveguide in a well, a voltage increaser which increases a voltage output by the photodiode, and an electrical energy storage device which receives electrical energy via the voltage increaser, whereby the electrical power can be supplied to the downhole well tool from the storage device.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Neal G. SKINNER, David P. SHARP
  • Patent number: 8566023
    Abstract: A method and system for marshaling resources needed to search for a missing child, declaring a missing child incident, coordinating a search for the missing child, tracking the progress of the search, locating the missing child, and recovering the missing child.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 22, 2013
    Inventors: Scott A. Riggins, David P. Sharp
  • Publication number: 20130249705
    Abstract: Disclosed are wireline tool systems including a casing collar locator tool and one or more logging tool(s). The logging tool(s) collects information regarding a formation property or a physical condition downhole, and produces a modulated magnetic field to communicate at least some of the collected information. The casing collar locator tool includes a light source and a sensor. The light source transmits light along an optical fiber in accordance with a sensor signal. The sensor produces the sensor signal in response to magnetic field changes attributable to passing collars in a casing string, and to the modulated magnetic field produced by the logging tool(s). Related telemetry methods are also described.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: David P. SHARP, John L. Maida, Etienne M. Samson
  • Publication number: 20130192640
    Abstract: According to one embodiment, the disclosure provides a system for removal of deleterious chemicals from a fiber optic line. The system may a fiber optic line having two ends, an outer tube, an optical fiber, and an inner volume, a fluid operable to move through the inner volume, the fluid operable to remove at least one deleterious chemical other than hydrogen from the fiber optic line, and a fluid controller connected to at least one end of the fiber optic line and operable to control movement of the fluid through the inner volume. According to another embodiment, the disclosure provides a method of removing a deleterious chemical from a fiber optic line. According to a third embodiment, the disclosure provides a method of removing a deleterious chemical from a fiber optic line by introducing a vacuum in an inner volume of a sealed fiber optic line in a static or cyclical manner.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: Neal G. Skinner, John L. Maida, JR., Etienne M. Samson, David P. Sharp, Kari-Mikko Jaaskelainen, Michel LeBlanc
  • Publication number: 20130056202
    Abstract: Fiber optic enabled casing collar locator systems and methods include a wireline sonde or a coil tubing sonde apparatus configured to be conveyed through a casing string by a fiber optic cable. The sonde includes at least one permanent magnet producing a magnetic field that changes in response to passing a collar in the casing string, a coil that receives at least a portion of the magnetic field and provides an electrical signal in response to the changes in the magnetic field, and a light source that responds to the electrical signal to communicate light along an optical fiber to indicate passing collars.
    Type: Application
    Filed: March 28, 2012
    Publication date: March 7, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: John L. Maida, Etienne M. Samson, David P. Sharp
  • Publication number: 20100262367
    Abstract: A method and system for marshaling resources needed to search for a missing child, declaring a missing child incident, coordinating a search for the missing child, tracking the progress of the search, locating the missing child, and recovering the missing child.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 14, 2010
    Inventors: Scott A. Riggins, David P. Sharp
  • Publication number: 20020188709
    Abstract: A system and method for storing console information includes a plurality of computing devices, each computing device having a respective console, and a respective console interface. Each console interface may be operable to transmit console information associated with the respective console. A console server having a memory module may be coupled for communication with the plurality of computing devices. In a particular embodiment, the memory module may be operable to receive and store at least a portion of the console information.
    Type: Application
    Filed: December 31, 2001
    Publication date: December 12, 2002
    Applicant: RLX Technologies, Inc.
    Inventors: Montgomery C. McGraw, Ramkrishna V. Prakash, David P. Sharp, Lazaro D. Perez
  • Publication number: 20020188718
    Abstract: A system and method for storing console information includes a first computing device having a first console and a first console interface operable to transmit first console information associated with the first console. A second computing device is coupled for communication with the first computing device. The second computing device may include a memory module operable to receive the first console information. In a particular embodiment, the memory module may be operable to store the first console information.
    Type: Application
    Filed: December 31, 2001
    Publication date: December 12, 2002
    Applicant: RLX Technologies, Inc.
    Inventors: Montgomery C. McGraw, Ramkrishna V. Prakash, David P. Sharp, Lazaro D. Perez
  • Patent number: 4885482
    Abstract: A circuit board for use with two different interface standards of different computer systems. The circuit board contains interfaces to two or more different standards so that one board can be inserted into two different mother boards. The interface on the board can be card edges for edge connectors, pin and socket connectors or others. The circuit board also includes provisions for the mounting of appropriate end plates. The circuit board further includes circuitry for selecting the appropriate circuitry configuration for the active interface standard, either automatically or based on a manual selection.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: December 5, 1989
    Assignee: Compaq Computer Corporation
    Inventors: David P. Sharp, Charles H. Lee, Thomas Cassidy
  • Patent number: 4867776
    Abstract: Apparatus and method for forming an integral structure, such as a lens, on a fiber, such as an optical fiber, which includes a device which imparts centrifugal force to an end of the fiber while the end of the fiber is being heated. An arc or heat source which heats the end of the fiber can both rotate about the longitudinal axis of the fiber and move laterally with respect to the longitudinal axis of the fiber. The apparatus also includes a device for longitudinally moving the fiber relative to the arc. When a fiber is inserted into the apparatus, centrifugal force is exerted on the end of the fiber as the fiber is heated. The fiber is advanced longitudinally relative to the arc until a sphere of a predetermined size is formed. Then, depending upon the shape or lens desired, the sphere may be allowed to cool and be removed from the apparatus, or other operations are performed.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: September 19, 1989
    Assignee: Compaq Computer Corporation
    Inventor: David P. Sharp