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Pushing the Vibrator Envelope – How Low Can We Go?
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 69th EAGE Conference and Exhibition incorporating SPE EUROPEC 2007, Jun 2007, cp-27-00441
- ISBN: 978-90-73781-54-2
Abstract
P183 Pushing the Vibrator Envelope – How Low Can We Go? Z. Wei* (Input/Output Inc.) J. Sallas (GeoMagic) & G. Tite (Schlumberger) SUMMARY At low frequencies the energy produced from a seismic vibrator is constrained by several mechanical and hydraulic limitations: the reaction mass stroke the hydraulic pump flow the pump response time the servo valve stroke the accumulator size the engine horsepower the peak force-decoupling the harmonic distortion and the vehicle chassis isolation. A model useful for simulating a seismic vibrator dynamics is developed to evaluate the impact of these parameters on the vibrator fundamental force envelope at low