Patents by Inventor Bikash A. Sinha

Bikash A. Sinha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Quadrupole acoustic shear wave logging while drilling
    Patent number: 6631327
    Abstract: A tool generates signals indicative of shear wave slowness of the formation surrounding a borehole. The tool comprises a collar portion adapted for mounting in a drill string, a quadrupole sonic transmitter mounted to the collar portion, and a quadrupole sonic receiver array mounted to the collar spaced apart from the transmitter. A method determines shear wave slowness of the formation. The method includes propagating quadrupole wave energy into the formation and detecting quadrupole dispersive waveforms received at a second location.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: October 7, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Chaur-Jian Hsu, Jahir A. Pabon, Bikash A. Sinha
  • Quadrupole acoustic shear wave logging while drilling
    Publication number: 20030058739
    Abstract: A tool generates signals indicative of shear wave slowness of the formation surrounding a borehole. The tool comprises a collar portion adapted for mounting in a drill string, a quadrupole sonic transmitter mounted to the collar portion, and a quadrupole sonic receiver array mounted to the collar spaced apart from the transmitter.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Inventors: Chaur-Jian Hsu, Jahir A. Pabon, Bikash A. Sinha