DocumentCode :
3161183
Title :
Diagnostics of impulse line blockage with multi-sensing differential pressure transmitter in oil line
Author :
Uehara, Akira ; Eino, Jyun-ichi ; Hashizume, Takumi ; Wakui, Tetuya ; Miyaji, Nobuo ; Yuuki, Yoshitaka
Author_Institution :
Waseda Univ., Tokyo
fYear :
2008
fDate :
20-22 Aug. 2008
Firstpage :
2977
Lastpage :
2982
Abstract :
A differential pressure transmitter with an orifice is widely used as a major field flowmeter. A major drawback of this flowmeter at the operation site is the blockage of the impulse line, which connects an orifice tap with a differential pressure transmitter. In this study, we investigate the relation between the amplitude of the pressure fluctuation in the oil line and the kinetic viscosity (1.0 times 10-5 to 3.0 times 10-5 m2/s). By conducting experiments in a water line, we have developed a method to diagnose the blockage of the impulse line. Hence, we use this method to diagnose the blockage in a line that carries a highly viscous fluid. Through experimental investigations, the following results are clarified: 1) The highly viscous fluid in the impulse line does not reduce the pressure fluctuation occurring at the multi-sensing differential pressure transmitter. 2) Highly viscous flow in the main line has small pressure fluctuations; however, these fluctuations have the same characteristics of the impulse line blockage as those in a water line. Therefore, the proposed method can diagnose the impulse line blockage in an oil line as well as in a water line.
Keywords :
flowmeters; orifices (mechanical); pipe flow; pressure measurement; viscosity; flowmeter; impulse line blockage diagnostics; kinetic viscosity; multi-sensing differential pressure transmitter; oil line; orifice; viscous fluid; water line; Fluctuations; Kinetic theory; Needles; Orifices; Petroleum; Pressure measurement; Testing; Transmitters; Valves; Viscosity; Diagnostic Technique; Differential Pressure Transmitter; Flowmeter; Impulse Line Blockage; Pressure Fluctuation; Viscous Flow;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
SICE Annual Conference, 2008
Conference_Location :
Tokyo
Print_ISBN :
978-4-907764-30-2
Electronic_ISBN :
978-4-907764-29-6
Type :
conf
DOI :
10.1109/SICE.2008.4655173
Filename :
4655173
Link To Document :
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