Piezoelektrisk transduser og borehullsverktøy for måling av fluid egenskaper

A down-hole tool has body comprising a sample port (14 in figure 1) and sample channel (15 in figure 1) in fluid communication the sample port. The sample channel includes a sample chamber having: an inlet 224 and outlet 226; multiple chambers including a cylindrical middle resonator cavity 206 and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Stibbe, Holger, Swett, Dwight W
Format:	Patent
Sprache:	nor
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A down-hole tool has body comprising a sample port (14 in figure 1) and sample channel (15 in figure 1) in fluid communication the sample port. The sample channel includes a sample chamber having: an inlet 224 and outlet 226; multiple chambers including a cylindrical middle resonator cavity 206 and two cylindrical outer resonator cavities 204,208 disposed concentrically. One of the outer resonator cavities has a sensor inlet 230 for receiving a sensor so it contacts the sample fluid as it flows through the sample channel/resonators. The inlet and outlet are formed in the middle resonator cavity and are staggered relative to one another. The sensor (240 in figure 7) includes a piezoelectric element and diaphragm contained at least partially within a chamber.