Patents by Inventor Jichun Sun

Jichun 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).

  • Publication number: 20240118446
    Abstract: Systems and methods of the present disclosure relate to signal attenuation for acoustic logging tools. An acoustic logging tool includes acoustic transducers. Each acoustic transducer includes a body, a piezoelectric element disposed on a first end of the body to receive or transmit at least one signal, and a wedge-cut disposed on an opposite end of the body. The wedge-cut defines a sloped portion operable to attenuate signals.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 11, 2024
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jichun Sun, Jing Jin, Xiang Wu, Christopher Michael Jones, Gennady Koscheev
  • Publication number: 20240110452
    Abstract: In some embodiments, a downhole logging tool configured for placement in a wellbore comprises a first magnet configured to activate a first volume of ferromagnetic fluid disposed between the downhole logging tool and the wellbore to achieve a first seal between a primary analysis region of the downhole logging tool and a wellbore fluid.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Inventors: Christopher Michael Jones, Xiang Wu, Jichun Sun
  • Publication number: 20230314648
    Abstract: A method for identifying guided waves in a measurement set. The method may comprise disposing an acoustic logging tool into a wellbore, performing a measurement operation with the acoustic logging too in the wellbore to form a data set which comprises one or more guided waves, measuring a speed of the one or more guided waves, and identifying a fluid phase interface using the speed of the one or more guided waves. The method may further comprise estimating an acoustic velocity of a wellbore fluid using a database and interpreting the fluid phase based at least in part on the acoustic velocity of the wellbore fluid.
    Type: Application
    Filed: August 16, 2022
    Publication date: October 5, 2023
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Yadong Wang, Jichun Sun, Ruijia Wang, Xiang Wu