Downhole tool

A multi-part logging tool (10) comprises a tool body having a longitudinal axis (16), a first transducer (30) perpendicular to the axis, spaced second (32) and third (34) transducers at angles of 8 to 27 DEG to the axis (16), fourth (36) and fifth (38) transducers at angles of 8 to 27 DEG to the axi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BIRCHAK, ROBERT JAMES, MANDAL, BATAKRISHNA, STROUD, JAMES WAYNE, MINEAR, JOHN WESLEY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A multi-part logging tool (10) comprises a tool body having a longitudinal axis (16), a first transducer (30) perpendicular to the axis, spaced second (32) and third (34) transducers at angles of 8 to 27 DEG to the axis (16), fourth (36) and fifth (38) transducers at angles of 8 to 27 DEG to the axis, and a sixth transducer (40) perpendicular to the axis (16). The tool allows measurement of several distinct independent parameters, which are in turn used to solve for secondary parameters that give information about the properties of the cement outside the casing.