Patents by Inventor Christian D. Garcia

Christian D. Garcia 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).

  • Debris-free valve apparatus and method of use
    Patent number: 6808020
    Abstract: The present invention provides an apparatus for use in completing a subterranean zone penetrated by a wellbore. One aspect of the invention comprises a housing member with a longitudinal bore and a valve member located within the housing member that is movable between open and closed positions. A sliding sleeve having a longitudinal bore is disposed within the housing member and can move between an upper position and a lower position. Attached to the sliding sleeve is a seating element where the valve member can seat. When the sliding sleeve is in the lower position, the valve member is held in the open position and communication is established between the longitudinal bore of the housing above and below the valve member. When the sliding sleeve is in the upper position, the valve member is held in the closed position and communication between the longitudinal bore of the housing above and below the valve member is restricted.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: October 26, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Christian D. Garcia, Stephane J. Virally, Steven L. Anyan, Patrick W. Bixenman
  • Debris free valve apparatus
    Patent number: 6732803
    Abstract: The present invention provides an apparatus for use in completing a subterranean zone penetrated by a wellbore. One aspect of the invention comprises a housing member with a longitudinal bore and a valve member located within the housing member that is movable between open and closed positions. A sliding sleeve having a longitudinal bore is disposed within the housing member and can move between an upper position and a lower position. Attached to the sliding sleeve is a seating element where the valve member can seat. When the sliding sleeve is in the lower position, the valve member is held in the open position and communication is established between the longitudinal bore of the housing above and below the valve member. When the sliding sleeve is in the upper position, the valve member is held in the closed position and communication between the longitudinal bore of the housing above and below the valve member is restricted.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: May 11, 2004
    Assignee: Schlumberger Technology Corp.
    Inventors: Christian D. Garcia, Stephane J. Virally, Steven L. Anyan, Patrick W. Bixenman
  • Debris free valve apparatus
    Publication number: 20020079104
    Abstract: The present invention provides an apparatus for use in completing a subterranean zone penetrated by a wellbore. One aspect of the invention comprises a housing member with a longitudinal bore and a valve member located within the housing member that is movable between open and closed positions. A sliding sleeve having a longitudinal bore is disposed within the housing member and can move between an upper position and a lower position. Attached to the sliding sleeve is a seating element where the valve member can seat. When the sliding sleeve is in the lower position, the valve member is held in the open position and communication is established between the longitudinal bore of the housing above and below the valve member. When the sliding sleeve is in the upper position, the valve member is held in the closed position and communication between the longitudinal bore of the housing above and below the valve member is restricted.
    Type: Application
    Filed: August 14, 2001
    Publication date: June 27, 2002
    Inventors: Christian D. Garcia, Stephane J. Virally, Steven L. Anyan, Patrick W. Bixenman
  • Debris free valve apparatus
    Publication number: 20020070028
    Abstract: The present invention provides an apparatus for use in completing a subterranean zone penetrated by a wellbore. One aspect of the invention comprises a housing member with a longitudinal bore and a valve member located within the housing member that is movable between open and closed positions. A sliding sleeve having a longitudinal bore is disposed within the housing member and can move between an upper position and a lower position. Attached to the sliding sleeve is a seating element where the valve member can seat. When the sliding sleeve is in the lower position, the valve member is held in the open position and communication is established between the longitudinal bore of the housing above and below the valve member. When the sliding sleeve is in the upper position, the valve member is held in the closed position and communication between the longitudinal bore of the housing above and below the valve member is restricted.
    Type: Application
    Filed: January 4, 2001
    Publication date: June 13, 2002
    Inventors: Christian D. Garcia, Stephane J. Virally, Steven L. Anyan, Patrick W. Bixenman