Dual-sensor Streamer Data - Calibration, Acquisition QC and Attenuation of Seismic Interferences and Other Noises

摘要

Pressure and velocity sensors contained in a towed streamer must be properly calibrated before they can be algebraically combined to separate up- and down-going waves. Statistical techniques developed for ocean-bottom surveys are adapted to account for the marine streamer acquisition geometry. By-products of this calibration process provide quality indicators that can be used during acquisition to assess data quality in real-time. Another unique feature of this process is that it isolates external noises, such as seismic interferences. These identified noises can subsequently be surgically removed from the data.