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:
May. 05, 2026
Filed:
Feb. 08, 2023
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Xinghan Li, Beijing, CN;
Wenxiu Zhang, Beijing, CN;
Wenxuan Chen, Beijing, CN;
Jian Zheng, Beijing, CN;
Wenqiang Yuan, Beijing, CN;
Yali Zhang, Beijing, CN;
Hong Li, Beijing, CN;
Abstract
The present application discloses a calibration method for a logging-while-drilling device, which is used for measuring data on the sea level and comprises the following steps: horizontally suspending the logging-while-drilling device; measuring amplitudes and phases at different heights; horizontally rotating the logging-while-drilling device for multiple times, and measuring amplitudes and phases at different heights after each horizontal rotation; and when the sum of angles of the multiple horizontal rotations is greater than 360 degrees, calculating an azimuth correction factor according to the measured amplitudes and phases. As the calibration method for the logging-while-drilling device according to the present application is carried out on a wide seawater interface, the influence of the boundary effect can be eliminated; the uniform medium attributes of air and seawater can be simplified into a one-dimensional double-layer medium model.