Patents by Inventor William J. Frawley

William J. Frawley 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).

  • Well logging: depth correlation of logs
    Patent number: 4320469
    Abstract: In depth correlation of logs according to the subject invention, the starting data is an array of correlograms on a depth v. shift coordinate system. Unreliable correlation coefficients are eliminated to leave only valid ones, then valid clusters of correlation coefficients are examined to find reliable indications of trends in shift and in changes in shift. These indications are used to compute the shift and the corresponding depth which would result in a corrected correlation between the two logs from which the correlograms are derived.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: March 16, 1982
    Assignee: Schlumberger Technology Corporation
    Inventors: William J. Frawley, Philip A. Mongelluzzo