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:
Apr. 01, 2025
Filed:
Nov. 14, 2023
Chengdu University of Technology, Chengdu, CN;
Jianguo Zhao, Chengdu, CN;
Qingyou Liu, Chengdu, CN;
Haiyan Zhu, Chengdu, CN;
Min Wan, Chengdu, CN;
Guorong Wang, Chengdu, CN;
Xuecheng Dong, Chengdu, CN;
Xu Luo, Chengdu, CN;
Yingju Pei, Chengdu, CN;
Xingming Wang, Chengdu, CN;
Chengdu University of Technology, Chengdu, CN;
Abstract
A downhole traction system includes a driving system and a downhole wheeled tractor. The driving system is connected with the downhole wheeled tractor; the downhole wheeled tractor comprises a tractor body, a power unit and a plurality of traction units; the plurality of traction units are arranged along the extension direction of the tractor body; each of the traction units comprises a driving arm, a supporting arm, a supporting wheel, a driving assembly and a supporting assembly; the driving arm and the supporting arm are movably connected with the tractor body; and the supporting wheel is connected with the driving arm and the supporting arm. When the supporting assembly drives the supporting arm to extend along the radial direction of the tractor body under the hydraulic drive action of the hydraulic power unit, the supporting wheel can be abutted against the well wall.