Patents by Inventor Michael John Wiltshire

Michael John Wiltshire 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).

  • Shale compaction and sonic logs
    Patent number: 6411902
    Abstract: A method of calculating a theoretical sonic log from an ideal sonic log and resistivity data. The method involves calculating the ideal sonic log assuming a shale sediment and using available data from a well or the surrounding region. Resistivity data is used to correct the ideal sonic log for departures from the shale sediment assumption. The calculated theoretical sonic log may then be used to calibrate an experimental log and to replace low confidence segments of the experimental log. The method allows useful information to be derived for wells previously considered uneconomical.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: June 25, 2002
    Inventor: Michael John Wiltshire