Magnetic Toner Conductivity Or Resistivity Patents (Class 430/122.52)
  • Sequential resistivity imaging with asymmetric electrode arrays
    Patent number: 7899622
    Abstract: A method and instrument provide a very detailed symmetric resistivity image of a formation. A first asymmetric resistivity image is collected from a first arrangement of electrodes, which form an asymmetric sensor. A second asymmetric resistivity image is collected from a second arrangement of electrodes, which form an asymmetric sensor. The first image and the second image overlap each other. The images are assembled about a selected reference point and then processed to provide the very detailed symmetric resistivity image.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: March 1, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Tsili Wang