Patents by Inventor Cleo (John) Clayton Holland

Cleo (John) Clayton Holland 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).

  • Hydraulic coiled tubing retrievable bridge plug
    Patent number: 7673693
    Abstract: A zonal isolation device comprises a packer assembly and an internal setting mechanism operable to actuate the packer assembly from an unset position to a set position, wherein the zonal isolation device is resettable and retrievable. Another zonal isolation device comprises a packer assembly, a setting mechanism operable to actuate the packer assembly from an unset position to a set position in response to hydraulic pressure alone, and a locking mechanism operable to lock and unlock the packer assembly from the set position in response to hydraulic pressure alone. A method for setting a zonal isolation device within a well bore comprises running the zonal isolation device in an unset position within the well bore on a work string, applying a differential pressure between the work string and the well bore, and actuating the zonal isolation device to a set position in response to the differential pressure alone.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: March 9, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: William E. Standridge, Cleo (John) Clayton Holland, Kevin Ray Manke
  • Hydraulic coiled tubing retrievable bridge plug
    Publication number: 20080308282
    Abstract: A zonal isolation device comprises a packer assembly and an internal setting mechanism operable to actuate the packer assembly from an unset position to a set position, wherein the zonal isolation device is resettable and retrievable. Another zonal isolation device comprises a packer assembly, a setting mechanism operable to actuate the packer assembly from an unset position to a set position in response to hydraulic pressure alone, and a locking mechanism operable to lock and unlock the packer assembly from the set position in response to hydraulic pressure alone. A method for setting a zonal isolation device within a well bore comprises running the zonal isolation device in an unset position within the well bore on a work string, applying a differential pressure between the work string and the well bore, and actuating the zonal isolation device to a set position in response to the differential pressure alone.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Applicant: Halliburton Energy Services, Inc.
    Inventors: William E. Standridge, Cleo (John) Clayton Holland, Kevin Ray Manke