Patents by Inventor Hansheng Ji

Hansheng Ji 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).

  • Patent number: 11733141
    Abstract: A method for determining rock wettability based on contact angle measurement and correction of multiple oil globules includes: saturating a rock sample with oil, placing a shooting angle calibration circle on a measurement surface of the rock sample, and placing the rock sample saturated with oil in water for water imbibition and oil displacement to form a rock sample with multiple oil globules; acquiring an image of a measurement surface of the rock sample with multiple oil globules at a shooting angle ? and a deformation degree of the calibration circle in a shooting field of view, and calculating the shooting angle ?; correcting, based on the shooting angle ?, a contact angle measurement value ? through a contact angle correction model to acquire a contact angle correction value ?; and determining, based on the contact angle correction value ?, wettability of the rock sample.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: August 22, 2023
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Naigui Liu, Likuan Zhang, Zhijun Jin, Hansheng Ji, Jianzhao Yan, Wang Zhang