Patents by Inventor Peter S. Aronstan

Peter S. Aronstan 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 acoustic impedance and dissipation of medium surrounding a borehole
    Patent number: 4869338
    Abstract: The invention is the use of standing waves to generate a well log. By measuring changes in energy dissipation from the standing wave along the well-bore, the formation may be evaluated for permeability variations may be determined. Variations in the tube wave velocity may be determined from variations in the frequency of a standing tube wave having a selected wave length. Shear wave velocity of the surrounding formation may be determined from the tube wave velocity.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: September 26, 1989
    Assignee: Western Atlas International, Inc.
    Inventors: James W. Wiggins, Peter S. Aronstan