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Seismic Vibrator Impedance And Near-Surface PropertiesNormal access

Authors: G. Baeten and F. Ernst
Event name: EAGE Vibroseis Workshop - Vibroseis acquisition and processing half century later, new developments in data quality and productivity
Session: Session 2: Vibroseis Data Quality
Publication date: 13 October 2008
DOI: 10.3997/2214-4609.20147512
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 325.96Kb )
Price: € 20

Summary:
Since the early days of Vibroseis, it has been observed that the vibrator behavior differs for
different near-surface conditions. In its simplest form, the earth can be regarded as a spring,
resulting in a baseplate motion that decreases with increasing earth stiffness (increasing spring
constant). It was also observed that this simple spring model was accurate for low frequencies
but inadequate to explain the baseplate motion for higher frequencies, where several
resonance phenomena were observed in the vibrator response.


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