Patents by Inventor Robert James Graf

Robert James Graf 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).

  • Multistage high pressure fracturing system with counting system
    Patent number: 10280702
    Abstract: The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes a plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 7, 2019
    Assignee: COMPLETIONS RESEARCH AG
    Inventors: Robert James Graf, Robert Steve Smolka
  • Multistage high pressure fracturing system with counting system
    Patent number: 10221648
    Abstract: A multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes a plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 5, 2019
    Assignee: COMPLETIONS RESEARCH AG
    Inventors: Robert James Graf, Robert Steve Smolka
  • Multistage fracturing system with electronic counting system
    Patent number: 10060243
    Abstract: The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes an electronic plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: August 28, 2018
    Assignee: Completions Research AG
    Inventors: Robert James Graf, Robert Steve Smolka
  • Multistage fracturing system with electronic counting system
    Patent number: 9752409
    Abstract: The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes an electronic plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: September 5, 2017
    Assignee: COMPLETIONS RESEARCH AG
    Inventors: Robert James Graf, Robert Steve Smolka
  • MULTISTAGE HIGH PRESSURE FRACTURING SYSTEM WITH COUNTING SYSTEM
    Publication number: 20160333665
    Abstract: The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes a plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.
    Type: Application
    Filed: January 23, 2015
    Publication date: November 17, 2016
    Applicant: Completions Research AG
    Inventors: Robert James Graf, Rober Steve Smoka