Patents by Inventor Nancy J. Fruhman

Nancy J. Fruhman 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 measuring formation water salinity from within a borehole
    Patent number: 10247849
    Abstract: Methods and systems are described for using pulsed neutron ?-ray spectroscopy to measure formation water salinity from within a borehole. Through generating a cross-plot of database values of ratios of spectroscopically determined yields of hydrogen (H) and chlorine (Cl) from two detectors, deriving apparent salinities therefrom, formation and borehole water salinities can be determined.
    Type: Grant
    Filed: September 16, 2012
    Date of Patent: April 2, 2019
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, SAUDI ARABIAN OIL COMPANY
    Inventors: Harold Pfutzner, James A. Grau, Nancy J. Fruhman, Raghu Ramamoorthy, Shouxiang Ma