Naslov
A High-Temperature Low-Cost Rotational Speed Transducer for Oil-Well Telemetry

Autori
Ambruš, Davorin ; Bilas, Vedran ; Vasić, Darko

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

Izvornik
From the Electrometer to the Networked Instruments: A Giant Step toward a Deeper Knowledge / Demidenko, Serge ; Ottoboni, Roberto ; Petri, Dario ; Piuri, Vincenzo ; Chong Tad Weng, Dave - Piscataway (NJ) : Institute of Electrical and Electronics Engineers (IEEE), 2004, 1071-1074

Skup
IMTC 2004 Instrumentation and Measurement Technology Conference 18-20 May 2004

Mjesto i datum
Como, Italija, 18.05.2004. - 20.05.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
oil-well telemetry; rotational speed measurement; lowcost

Sažetak
High-temperature environment of an oil-well requires reliable downhole instrumentation, typically based on simple and robust circuits, low power consumption and smart measurement algorithms. In this paper, we present electronic design and measurement methodology for a simple, low-cost rotational speed transducer, optimized for downhole spinner-flowmeter application and multichannel telemetry. We have developed and experimentally evaluated an effective algorithm for direction-sensitive rotational speed measurement, which combines quadrature pulse decoding with the method of dependant count. The algorithm employs temperature compensation techniques, making it suitable for lowcost high-temperature circuit designs. Our preliminary results confirm reliable operation of the transducer, targeted at hightemperature, short-term oil-well logging applications.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA