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:
Sep. 10, 2024
Filed:
Sep. 24, 2020
China University of Petroleum (East China), Shandong, CN;
Pipechina South China Company, Guangdong, CN;
Guangdong South China Intelligent Pipeline Research Institute, Guangdong, CN;
Cuiwei Liu, Qingdao, CN;
Zhongshan Tian, Guangzhou, CN;
Yuxing Li, Qingdao, CN;
Shaochuan Lai, Guangzhou, CN;
Wen Yang, Guangzhou, CN;
Gang Liu, Qingdao, CN;
Wubin Lin, Guangzhou, CN;
Chen Zhang, Guangzhou, CN;
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
PIPECHINA SOUTH CHINA COMPANY, Qingdao, CN;
GUANGDONG SOUTH CHINA INTELLIGENT PIPELINE RESEARCH INSTITUTE, Guangzhou, CN;
Abstract
A method of leak detection for oil and gas pipeline based on excitation response and system thereof includes: applying an active excitation signal (a pressure pulse directly input by human) or a passive excitation signal (a pressure fluctuation caused by opening and closing valves, etc.) to an oil and gas pipeline with existing leakage points, the excitation signal is reflected at the pipeline boundary and the leakage, and the reflected pressure wave continues to propagate to upstream and downstream, and finally is collected by the dynamic pressure transducer, then the existing leakage of the pipeline is detected and positioned by analyzing the transient response signal and the reflected pressure wave of leakage signal.