Patents Represented by Attorney, Agent or Law Firm Brian J. Hubbard
  • Compositions for solving lost circulation problems
    Patent number: 6508306
    Abstract: A method and composition is provided for sealing a subterranean zone penetrated by a well bore and restoring lost circulation, wherein the composition basically comprises a mixture of latex, melamine-formaldehyde resin, and a catalyst.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: January 21, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Jiten Chatterji, Roger S. Cromwell