Patents by Inventor Christine A. Doughty

Christine A. Doughty 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).

  • Thermal well-test method
    Patent number: 4559818
    Abstract: A well-test method involving injection of hot (or cold) water into a groundwater aquifer, or injecting cold water into a geothermal reservoir. By making temperature measurements at various depths in one or more observation wells, certain properties of the aquifer are determined. These properties, not obtainable from conventional well test procedures, include the permeability anisotropy, and layering in the aquifer, and in-situ thermal properties. The temperature measurements at various depths are obtained from thermistors mounted in the observation wells.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: December 24, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Chin-Fu Tsang, Christine A. Doughty