Patents by Inventor Eric Withjack

Eric Withjack 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).

  • Reservoir monitoring in a laminated reservoir using 4-D time lapse data and multicomponent induction data
    Patent number: 6529833
    Abstract: Time lapse seismic measurements of a laminated reservoir including sands and shales are processed to determine changes in the laminated reservoir. An initial petrophysical model is obtained at a wellbore from measurements made with a multicomponent resistivity logging tool. Changes in the amplitude versus offset behavior of the reflections from the top of the reservoir are indicative of changes in fluid saturation and/or formation pressure.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: March 4, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Otto N. Fanini, Eric Withjack, Sven Treitel
  • Reservoir monitoring in a laminated reservoir using 4-D time lapse data and multicomponent induction data
    Publication number: 20020128777
    Abstract: Time lapse seismic measurements of a laminated reservoir including sands and shales are processed to determine changes in the laminated reservoir. An initial petrophysical model is obtained at a wellbore from measurements made with a multicomponent resistivity logging tool. Changes in the amplitude versus offset behavior of the reflections from the top of the reservoir are indicative of changes in fluid saturation and/or formation pressure.
    Type: Application
    Filed: January 29, 2002
    Publication date: September 12, 2002
    Applicant: Baker Hughes, Inc.
    Inventors: Otto N. Fanini, Eric Withjack, Sven Treitel