The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Apr. 07, 2023
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Naigui Liu, Beijing, CN;
Likuan Zhang, Beijing, CN;
Zhijun Jin, Beijing, CN;
Hansheng Ji, Beijing, CN;
Jianzhao Yan, Beijing, CN;
Wang Zhang, Beijing, CN;
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 α and a deformation degree of the calibration circle in a shooting field of view, and calculating the shooting angle α; correcting, based on the shooting angle α, a contact angle measurement value γ through a contact angle correction model to acquire a contact angle correction value θ; and determining, based on the contact angle correction value θ, wettability of the rock sample.