Patents by Inventor Tommy V. Ragland

Tommy V. Ragland 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).

  • Prediction of permeability from capillary pressure curves derived from nuclear magnetic resonance pore size distributions
    Patent number: 6008645
    Abstract: Capillary pressure curves can be derived from nuclear magnetic resonance (NMR) pore size distributions. These derived capillary pressure curves can be used to derive the displacement pressure, the fractional bulk volume of mercury at infinite pressure and a geometrical factor. These factors can be used to accurately predict permeability from an NMR derived capillary pressure curve.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: December 28, 1999
    Assignee: Conoco Inc.
    Inventors: Mark C. Bowers, Andre' J. Bouchard, Tommy V. Ragland, Gary D. Myers