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).
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Patent number: 9608627Abstract: 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: GrantFiled: January 24, 2013Date of Patent: March 28, 2017Assignee: Halliburton Energy ServicesInventors: Neal G. Skinner, David P. Sharp
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Patent number: 9127532Abstract: 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: GrantFiled: March 28, 2012Date of Patent: September 8, 2015Assignee: Halliburton Energy Services, Inc.Inventors: John L. Maida, Etienne M. Samson, David P. Sharp
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Publication number: 20140219056Abstract: 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: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: Halliburton Energy Services, Inc. ("HESI")Inventors: Etienne M. Samson, David P. Sharp, John L. Maida
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Publication number: 20140203174Abstract: 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: ApplicationFiled: January 24, 2013Publication date: July 24, 2014Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Neal G. SKINNER, David P. SHARP
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Patent number: 8566023Abstract: 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: GrantFiled: March 31, 2010Date of Patent: October 22, 2013Inventors: Scott A. Riggins, David P. Sharp
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Publication number: 20130249705Abstract: 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: ApplicationFiled: March 21, 2012Publication date: September 26, 2013Applicant: Halliburton Energy Services, Inc.Inventors: David P. SHARP, John L. Maida, Etienne M. Samson
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Publication number: 20130192640Abstract: 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: ApplicationFiled: January 26, 2012Publication date: August 1, 2013Inventors: Neal G. Skinner, John L. Maida, JR., Etienne M. Samson, David P. Sharp, Kari-Mikko Jaaskelainen, Michel LeBlanc
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Publication number: 20130056202Abstract: 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: ApplicationFiled: March 28, 2012Publication date: March 7, 2013Applicant: Halliburton Energy Services, Inc.Inventors: John L. Maida, Etienne M. Samson, David P. Sharp
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Publication number: 20100262367Abstract: 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: ApplicationFiled: March 31, 2010Publication date: October 14, 2010Inventors: Scott A. Riggins, David P. Sharp
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Publication number: 20020188709Abstract: 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: ApplicationFiled: December 31, 2001Publication date: December 12, 2002Applicant: RLX Technologies, Inc.Inventors: Montgomery C. McGraw, Ramkrishna V. Prakash, David P. Sharp, Lazaro D. Perez
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Publication number: 20020188718Abstract: 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: ApplicationFiled: December 31, 2001Publication date: December 12, 2002Applicant: RLX Technologies, Inc.Inventors: Montgomery C. McGraw, Ramkrishna V. Prakash, David P. Sharp, Lazaro D. Perez
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Patent number: 4885482Abstract: 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: GrantFiled: July 13, 1988Date of Patent: December 5, 1989Assignee: Compaq Computer CorporationInventors: David P. Sharp, Charles H. Lee, Thomas Cassidy
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Patent number: 4867776Abstract: 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: GrantFiled: May 2, 1988Date of Patent: September 19, 1989Assignee: Compaq Computer CorporationInventor: David P. Sharp