Patents by Inventor Ian David Stowe

Ian David Stowe 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).

  • Method and system to invert tectonic boundary or rock mass field in in-situ stress computation
    Patent number: 7882745
    Abstract: A method, system and computer program product for inverting boundary conditions for rock mass field in-situ stress computation for a geologic structure are disclosed. According to an embodiment, the current invention includes a method for inverting boundary conditions for rock mass field in-situ stress computation for a geologic structure, the method comprising: considering physical constraint of the geological structure; deriving and solving normal equations of penalized weighted least squares, said normal equations of penalized weighted least squares partially representing said physical constraint of the geological structure; and outputting boundary conditions and reproducing the rock mass field in-situ stress based on the result of said solved normal equations of penalized weighted least squares.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 8, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: YanSong Huang, GongRui Yan, Ian David Stowe
  • METHOD AND SYSTEM TO INVERT TECTONIC BOUNDARY OR ROCK MASS FIELD IN IN-SITU STRESS COMPUTATION
    Publication number: 20080071505
    Abstract: A method, system and computer program product for inverting boundary conditions for rock mass field in-situ stress computation for a geologic structure are disclosed. According to an embodiment, the current invention includes a method for inverting boundary conditions for rock mass field in-situ stress computation for a geologic structure, the method comprising: considering physical constraint of the geological structure; deriving and solving normal equations of penalized weighted least squares, said normal equations of penalized weighted least squares partially representing said physical constraint of the geological structure; and outputting boundary conditions and reproducing the rock mass field in-situ stress based on the result of said solved normal equations of penalized weighted least squares.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 20, 2008
    Inventors: YANSONG HUANG, GongRui Yan, Ian David Stowe