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f Geometrical DMO Calibration and Spatial Dealiasing
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 57th EAGE Conference and Exhibition, May 1995, cp-90-00089
- ISBN: 978-90-73781-06-1
Abstract
Irregular acquisition geometry is inevitable due to obstacles and cable feathering in 3-D marine surveys and access limitations in 3-D land surveys. The irregularities will damage the fidelity of seismic images, unless they are properly handled in the processing. DMO in particular, must take account of the actual geometry. Black, Schleicher, and Zhang (1993) have developed an anaiytical calibration method that is implemented via the DMO amplitude term. In this paper we extend the DMO calibration to take into account the irregular geometry, and develop a geometrical calibration.