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:
Oct. 01, 2024
Filed:
Jan. 11, 2024
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Qihui Zhen, Beijing, CN;
Qingyun Di, Beijing, CN;
Yuliang Wang, Beijing, CN;
Quanmin Yang, Beijing, CN;
Abstract
A ground receiving front-end compensation system for intelligent guide drilling borehole-ground electromagnetic transmission is provided, and includes a ground sensing module located below the underground wellhead, a ground system located between the underground wellhead and the measuring electrode, a measuring electrode and a compensation electrode; the ground system, the measuring electrode and the compensation electrode are located at the same side of the underground wellhead, a measuring electrode spacing (a first preset distance) is a distance from the underground wellhead to the measuring electrode; a compensation electrode spacing (a second preset distance) is a distance from the underground wellhead to the compensation electrode, the second preset distance is greater than the first preset distance; an induction signal of the ground sensing module enters the ground system, and the ground system outputs compensation current based on the induction signal, and compensates the measuring signal based on the compensation current.