Patents Examined by Jong Lee
  • System and method for driving pipe
    Patent number: 6575240
    Abstract: An apparatus and method for forming a wellbore casing. A mandrel is used to position a tubular member within a wellbore. The mandrel is then driven into the bottom of the wellbore. The tubular member is then radially expanded by the mandrel.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 10, 2003
    Assignee: Shell Oil Company
    Inventors: Robert Lance Cook, Richard Carl Haut