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:
Feb. 25, 2025
Filed:
Apr. 07, 2021
China Oilfield Services Limited, Tianjin, CN;
China National Offshore Oil Corporation, Beijing, CN;
Zhibin Tian, Hebei, CN;
Tao Lu, Hebei, CN;
Lin Huang, Hebei, CN;
Zanqing Wei, Hebei, CN;
Tiemin Liu, Hebei, CN;
Yongren Feng, Hebei, CN;
Xiaodong Chu, Hebei, CN;
Yong Jiang, Hebei, CN;
China Oilfield Services Limited, Tianjin, CN;
China National Offshore Oil Corporation, Beijing, CN;
Abstract
A coring device, comprising an electronic sub communicated with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing.