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f Effects of processing on three-component shear-wave data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 53rd EAEG Meeting, May 1991, cp-42-00254
- ISBN: 978-90-73781-03-0
Abstract
Recent developments in seismology have led to an increase recording of three-component (3-C) data, in particular for the study of seismic anisotropy where shear-waves have vector polarizations in three dimensions. By carrying information about the symmetry structure along the raypath the polarization of shear-waves can be used to evaluate the parameters of the anisotropy and hence provide information about the internal structure of the rock (S. Crampin, 1985). Crampin has shown in numerous papers that shear-waves are particularly sensitive to changes in crack- and pore-geometry caused by changes in pore-pressure, pore-fluid properties and the orientation of the stress field that aligned the cracks.