Patents by Inventor Jingling Karen Sun

Jingling Karen Sun 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).

  • EXTRA BUCKING COILS AS AN ALTERNATIVE WAY TO BALANCE INDUCTION ARRAYS
    Publication number: 20100026280
    Abstract: An electromagnetic logging tool is disclosed that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array is disclosed that includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.
    Type: Application
    Filed: September 18, 2009
    Publication date: February 4, 2010
    Applicant: Schlumberger Technology Corporation
    Inventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingling Karen Sun, William B. Vandermeer, Richard D. Ward