How do Hydraulic Vibrators Work? A Look Inside the Black Box

Roughly half of today’s land seismic data surveys use P-wave hydraulic vibrators for sources.<br>The use of measured source signals and ability to control source spectral output in both<br>amplitude and phase has led to many innovative ways to dramatically increase acquisition<br>productivity. A working knowledge of how the vibrator system works and its limitations can<br>provide insight into how best to effectively radiate compression waves, extend bandwidth and<br>avoid pitfalls. This presentation offers a basic overview to help provide that insight.