Patents Represented by Attorney Bennett Jones LLC
  • Patent number: 7431091
    Abstract: A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the tubing string inner bore.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: October 7, 2008
    Assignee: Packers Plus Energy Services Inc.
    Inventors: Daniel Jon Themig, Jim Fehr