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. 10, 2021
Filed:
Jan. 06, 2020
China University of Petroleum (East China), Shandong, CN;
Yonghong Liu, Shandong, CN;
Qiang Sun, Shandong, CN;
Qingyun Li, Shandong, CN;
Renjie Ji, Shandong, CN;
Baoping Cai, Shandong, CN;
Xiaopeng Li, Shandong, CN;
Yancong Han, Shandong, CN;
Peng Liu, Shandong, CN;
Dege Li, Shandong, CN;
Xinlei Wu, Shandong, CN;
Fan Zhang, Shandong, CN;
China University of Petroleum (East China), Shandong, CN;
Abstract
The present disclosure provides a multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method. The multi-path combined high-low voltage plasma rock-breaking drill bit comprises: a drill bit body, insulators, plasma generators, drilling fluid outlets, plasma integrated pipelines, a drilling fluid pipe; wherein a plurality of plasma generators are distributed on the same drill bit body; the axis of the plasma generator and the axis of the drill bit body form a certain included angle; each of the plasma generators is independently connected to the ground through its respective plasma integrated pipeline and operates independently; and drilling fluid flows out of the drilling fluid outlets, takes away the heat generated by the operation of the plasma generators, thereby cooling the plasma generators.