The seismic method is limited in its ability to resolve small anomalies. The definition of “small” is governed generally by the seismic wavelength. Wavelength is given by the ratio of phase velocity to temporal frequency (i.e., λ = v/f). Because there is little we can do about a rock's seismic velocity, we can change the seismic wavelength only by changing the temporal frequency. We shall see that reducing the wavelength by increasing the frequency will help improve both vertical and horizontal resolution.
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Fundamentals of Geophysical Interpretation
Fundamentals of Geophysical Interpretation, SEG Geophysical Monograph Series No. 13, is a practical handbook for the petroleum geophysicist. Fundamental concepts are explained using heuristic descriptions of seismic modeling, deconvolution, depth migration, and tomography. Pitfalls in processing and contouring are described briefly. Applications include petroleum exploration of carbonate reefs, salt intrusions, and overthrust faults. The book includes past, present, and possible future developments in time-lapse seismology, borehole geophysics, multicomponent seismology, and integrated reservoir characterization.