Patents by Inventor Nicholas Banchet

Nicholas Banchet 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).

  • Methods for determining formation and borehole parameters using fresnel volume tomography
    Patent number: 7027927
    Abstract: A method and apparatus for determining formation slowness around a borehole are provided. The Fresnel volume concept is applied for traveltime tomography. The Fresnel volume represents a sonic wave propagation path about the borehole. The application of Fresnel volume to sonic data provides for a stable inversion and makes practical 3-D tomography. Inversion is accomplished by an iterative back-projection method.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 11, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Toshifumi Matsuoka, Takeshi Endo, Di Cao, Nicholas Banchet, Jongha Lee
  • METHODS FOR DETERMINING FORMATION AND BOREHOLE PARAMETERS USING FRESNEL VOLUME TOMOGRAPHY
    Publication number: 20040122594
    Abstract: A method and apparatus for determining formation slowness around a borehole are provided. The Fresnel volume concept is applied for traveltime tomography. The Fresnel volume represents a sonic wave propagation path about the borehole. The application of Fresnel volume to sonic data provides for a stable inversion and makes practical 3-D tomography. Inversion is accomplished by an iterative back-projection method.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: Toshifumi Matsuoka, Takeshi Endo, Di Cao, Nicholas Banchet, Jongha Lee