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:
Nov. 25, 2025
Filed:
Sep. 22, 2022
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Petroleum Engineering Technology Research Institute Co., Ltd., Beijing, CN;
Jiachang Wang, Beijing, CN;
Guangjun Ma, Beijing, CN;
Haiping Zhang, Beijing, CN;
Yanbin Zang, Beijing, CN;
Lingchao Xuan, Beijing, CN;
Dongqing Zhang, Beijing, CN;
Jianhua Liu, Beijing, CN;
Renlong Zhang, Beijing, CN;
Lishuang Wang, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD., Beijing, CN;
Abstract
A turbine type pulse generator for downhole drilling tool has a pulse generating device (), which has a turbine housing (), a turbine shaft () concentrically arranged inside the turbine housing (), a turbine mechanism arranged around the turbine shaft (), and a valve disc mechanism provided at a lower end of the turbine shaft (). The turbine mechanism is configured to drive the turbine shaft () to rotate under an impact of drilling fluid, so that a flow area of the valve disc mechanism is changed periodically to generate pressure pulses. The turbine type pulse generator also has an automatic control mechanism () configured to keep the turbine shaft () static relative to the turbine housing () in a circumferential direction during composite drilling, and to drive the turbine shaft () to rotate relative to the turbine housing () under an impact of the turbine mechanism during sliding drilling.