Method and equipment for drilling control by vibration analysis
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United States of America Patent
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Aug 25, 1992
Grant Date -
N/A
app pub date -
Nov 30, 1990
filing date -
Mar 31, 1989
priority date (Note) -
Expired
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Abstract
Device for the auditory and/or visual representation of mechanical phenomena in the interaction between a drilling tool and rock being drilled, characterized by the fact that it includes a mechanism for picking up a vibratory signal representing the vibration of the tool at the cutting face using an accelerometric sensor at a specific point on the drilling stem and processing equipment (45, 31, 31) for filtering the signal in the frequency band of 10 to 200 Hz.
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