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:
Mar. 17, 2026
Filed:
Apr. 12, 2024
China University of Petroleum-beijing, Beijing City, CN;
Zhongwei Huang, Beijing City, CN;
Gensheng Li, Beijing City, CN;
Huaizhong Shi, Beijing City, CN;
Xiaoguang Wu, Beijing City, CN;
Shouceng Tian, Beijing City, CN;
Xianzhi Song, Beijing City, CN;
Haizhu Wang, Beijing City, CN;
Mao Sheng, Beijing City, CN;
Jingbin Li, Beijing City, CN;
Ruiyue Yang, Beijing City, CN;
Xin Liu, Beijing City, CN;
CHINA UNIVERSITY OF PETROLEUM-BEIJING, Beijing City, CN;
Abstract
A coiled tubing flexible drill rod ultra-short radius radial drilling method, including: when in a first operation mode, activating a screw motor and a flexible power drilling tool located at a lower part of a coiled tubing; when in a second operation mode, only activating the screw motor and deactivating the flexible power drilling tool; and when in a third operation mode, only activating the flexible power drilling tool connected to the drill bit below. A corresponding drilling string and system are also disclosed. The method and system can achieve the effects of a small deflecting radius, an adjustable deflecting angle, a high operating efficiency and a low risk.