Downhole Impulsive Vibration Source Spectra
B. F. Simonov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: Downhole impulsive vibration source, frequency, vibration period, spectrum, pulse duration, signal amplitude
Abstract
The author analyzes spectra of a downhole impulsive vibration source with two power-supply units and an electromagnetic hammer using the Fourier series. The amplitude-frequency characteristics of the impulsive and unbalance-mass vibration sources of adequate sizes are compared. The impulsive vibrator has much higher amplitudes and spectra of output signals than the unbalance-mass vibration source.
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