Patents Represented by Attorney Bryan White
  • Patent number: 7525315
    Abstract: A combined resistivity tool incorporating both induction/propagation antennas and lateral resistivity antennas disposed in recesses of downhole tubulars, in which a lateral resistivity antenna includes an insulating base layer disposed in the recess; a toroidal antenna disposed over the insulating base layer; and a shield disposed over the recess.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: April 28, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Mark A. Fredette, James Stephen Hall, Mark T. Frey, Dominique Dion