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f A field test of the point vibrator land acquisition technology
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE Vibroseis Workshop - Vibroseis acquisition and processing half century later, new developments in data quality and productivity, Oct 2008, cp-92-00028
- ISBN: 978-94-6282-067-8
Abstract
Recording point receivers or point sources instead of the conventional receiver or source arrays enables individual corrections to be applied before Digital Group Forming (DGF) to compensate for:<br>- Static variations due to different weathered zone conditions or elevations between the different receivers or sources of the same group,<br>- Amplitude variations due to different coupling conditions,<br>- Move-out differences at far offsets.<br>In addition, a finer spatial sampling of the point receiver or source spread along the inline and crossline directions improves the filtering of source generated surface noise.<br>A field test of the point source and point receiver methods was performed in 2006 by inserting a point source line and a point receiver line within a “conventional†3D survey acquired with source and receiver arrays. The objective was to allow a fair comparison of these two test datasets with reference array datasets acquired with equivalent fold and geometry.