Patents by Inventor Jingjing (Karen) Sun

Jingjing (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 to balance induction arrays
    Patent number: 7812608
    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: Grant
    Filed: September 18, 2009
    Date of Patent: October 12, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing Karen Sun, William B. Vandermeer, Richard D. Ward
  • Composite encased tool for subsurface measurements
    Patent number: 7671597
    Abstract: A composite encased tool for making subsurface measurements in a borehole traversing a subsurface formation includes a conductive mandrel, a first composite layer wrapped around the conductive mandrel, the first composite layer having one or more slots, a source or sensor disposed in each of the one or more slots, and a second composite layer wrapped around the first composite layer with the source or sensor in the one or more slots.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: March 2, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Bulent Finci, Scott S. Chesser, Jingjing (Karen) Sun, Denis Lebreton, Richard D. Ward, Andrei I. Davydychev, William B. Vandermeer, John F. Hunka
  • Extra bucking coils as an alternative way to balance induction arrays
    Patent number: 7501829
    Abstract: An electromagnetic logging 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 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: Grant
    Filed: February 16, 2006
    Date of Patent: March 10, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing (Karen) Sun, William B. Vandermeer, Richard D. Ward
  • EXTRA BUCKING COILS AS AN ALTERNATIVE WAY TO BALANCE INDUCTION ARRAYS
    Publication number: 20080278147
    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: July 30, 2008
    Publication date: November 13, 2008
    Applicant: Schlumberger Technology Corporation
    Inventors: Andrei I. Davydychev, John F. Hunka, Thomas D. Barber, Scott S. Chesser, Bulent Finci, Jingjing Karen Sun, William B. Vandermeer, Richard D. Ward
  • Composite Encased Tool for Subsurface Measurements
    Publication number: 20070107896
    Abstract: A composite encased tool for making subsurface measurements in a borehole traversing a subsurface formation includes a conductive mandrel, a first composite layer wrapped around the conductive mandrel, the first composite layer having one or more slots, a source or sensor disposed in each of the one or more slots, and a second composite layer wrapped around the first composite layer with the source or sensor in the one or more slots.
    Type: Application
    Filed: May 23, 2006
    Publication date: May 17, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bulent Finci, Scott Chesser, Jingjing (Karen) Sun, Denis Lebreton, Richard Ward, Andrei Davydychev, William Vandermeer, John Hunka
  • EXTRA BUCKING COILS AS AN ALTERNATIVE WAY TO BALANCE INDUCTION ARRAYS
    Publication number: 20060192562
    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: February 16, 2006
    Publication date: August 31, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Andrei Davydychev, John Hunka, Thomas Barber, Scott Chesser, Bulent Finci, Jingjing (Karen) Sun, William Vandermeer, Richard Ward