Patents by Inventor Charles M. Skidmore

Charles M. Skidmore 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 for generating P-S and S-S- seismic data and attributes from P-P seismic data
    Patent number: 6871146
    Abstract: A method for generating P-S or S-S seismic data from P-P AVO data in P-P travel time for a geographic area includes obtaining a plurality of amplitude and angle of incidence pairs of P-P AVO data. The plurality of amplitude and angle of incidence pairs of P-P AVO data are inverted. Lastly, estimates of the rock property contrasts are produced from the inverted plurality of amplitude and angle of incidence pairs of P-P AVO data, the rock property contrasts including at least one of ?Vp/Vp, ?Vs/Vs and ??/?.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: March 22, 2005
    Assignee: Emerald Geoscience Research Corporation
    Inventors: Michael C. Kelly, Charles M. Skidmore
  • Non-linear statistically constrained AVO inversion
    Patent number: 6817218
    Abstract: A method is provided for ensuring increased accuracy and stability in analysis of seismic trace data. The present method more accurately determines the location, as well as the saturation level, of possible hydrocarbon reservoirs. The method includes use of more accurate, non-linear equations for the AVO inversion and application of a geologically reasonable set of statistical constraints.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: November 16, 2004
    Assignee: Emerald Geoscience Research Corp.
    Inventors: Michael C. Kelly, Charles M. Skidmore, David Ford, Ray Cotton
  • Method for generating P-S and S-S seismic data and attributes from P-P seismic data
    Patent number: 6760667
    Abstract: A method for generating P-S or S—S seismic data from P—P AVO data in P—P travel time for a geographic area includes obtaining a plurality of amplitude and angle of incidence pairs of P—P AVO data. The plurality of amplitude and angle of incidence pairs of P—P AVO data are inverted. Lastly, estimates of the rock property contrasts are produced from the inverted plurality of amplitude and angle of incidence pairs of P—P AVO data, the rock property contrasts including at least one of &Dgr;Vp/Vp, &Dgr;Vs/Vs and &Dgr;&rgr;/&rgr;.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: July 6, 2004
    Assignee: Emerald Geoscience Research Corporation
    Inventors: Michael C. Kelly, Charles M. Skidmore
  • Method for determination of pay saturation from seismic data
    Patent number: 6421611
    Abstract: Methods for determination of pay saturation (SPAY) and water saturation (Sw) from surface seismic data use amplitude changes with angle of incidence in conjunction with rock property relationships to determine pay saturation for a variety of situations. These situations include cases where P-P data is used and anisotropy and absorption are negligible; cases where P-P data is used and anisotropic effects are important; cases where contact events are evident; and cases where P-S data is used and anisotropy and absorption are negligible.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 16, 2002
    Assignee: Emerald Geoscience Research Corporation
    Inventors: Michael C. Kelly, Charles M. Skidmore, Raymond D. Cotton, William P. May, Richard O. Lindsay, Davis W. Ratcliff
  • Method of determining net reservoir thickness
    Patent number: 6243650
    Abstract: The methods of the present invention determine the net and gross thickness of reservoir beds, taking into account the internal structure of reservoir beds, using P-P, and/or S-S and/or P-S seismic data acquired in 2-d or 3-d.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: June 5, 2001
    Assignee: Diamond Geoscience Research Corporation
    Inventors: Charles M. Skidmore, Michael C. Kelly, Richard Owens Lindsay