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Petrophysical evaluation of subterranean formations

United States Patent

May 28, 2013
View the Complete Patent at the US Patent & Trademark Office
Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.
Klein; James D. (Tucson, AZ), Schoderbek; David A. (Eagle River, AK), Mailloux; Jason M. (Laramie, WY)
ConocoPhillips Company (Houston, TX)
12/ 861,485
August 23, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of DOE Cooperative Agreement No. DE-NT0006553 awarded by the Department of Energy.