Naslov
Lumped Representation in Inductive Measurement of Metal Casing Properties

Autori
Vasić, Darko ; Bilas, Vedran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings International Instrumentation and measurement Conference, I2MTC 2010 / Dyer Ruth ; Schmalzel John - Piscataway (NJ) : Institute of Electrical and Electronics Engineers (IEEE), 2010, 841-844

ISBN
987-1-4244-2833-5

Skup
International Instrumentation and measurement Conference, I2MTC 2010

Mjesto i datum
Austin (TX), Sjedinjene Američke Države, 03.05.2010. - 06.05.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
inductive measurement; metal casing; remote-field technique; analytical modeling

Sažetak
In low-frequency evaluation of oil-well steel casing properties using a transmitter coil and several receiver coils, high measurement accuracy is required to successfully resolve individual casing properties. Thus, the results of such measurements are usually only lumped parameters: casing factor and permeability-to-conductivity ratio. In this paper, we generalize the two lumped parameters into one space-frequency dependent parameter using an analytical model based on the truncated-region method and the series expansion of the vector magnetic potential. Using the generalized lumped parameter and the sensitivity analysis, we evaluate the traditional positioning of the receiver coils and discuss the frequency dependence of the measurement uncertainty of the lumped parameters.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA