Oil and gas pipeline leak detection method and system based on excitation response

Oil and gas pipeline leak detection method and system based on excitation response

Provided are an oil and gas pipeline leak detection method and system based on excitation response; an active excitation signal (manual direct input of pressure pulse) or passive excitation signal (producing pressure fluctuations by means of rapid opening and closing of a valve, etc.) is applied to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI, Yuxing, YANG, Wen, TIAN, Zhongshan, LIU, Cuiwei, LIN, Wubin, ZHANG, Chen, LAI, Shaochuan, LIU, Gang
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MEASURING
MECHANICAL ENGINEERING
PHYSICS
PIPE-LINE SYSTEMS
PIPE-LINES
STORING OF DISTRIBUTING GASES OR LIQUIDS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
WEAPONS
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Beschreibung
Zusammenfassung:Provided are an oil and gas pipeline leak detection method and system based on excitation response; an active excitation signal (manual direct input of pressure pulse) or passive excitation signal (producing pressure fluctuations by means of rapid opening and closing of a valve, etc.) is applied to an oil and gas pipeline having an existing leak point; said excitation signal is reflected at the boundary and the location of leakage of the pipeline, the reflected wave continues to propagate upstream and downstream and is finally collected by a dynamic pressure sensor, and the existing leakage of the pipeline is detected and located by means of analyzing the transient response signal and the reflected wave of the leakage signal.