| 摘要 |
An improved method of stratigraphic analysis of geophysical data is provided. In one embodiment seismic data are transformed into one or more instantaneous attributes descriptive of the wave-like nature of the seismic signals comprising the seismic data. A stratum in the earth's subsurface, having both lateral and vertical extent, is defined on the seismic data. The instantaneous attributes within the stratum can thereafter be transformed into a descriptor statistically representative of changes in the formation materials comprising the stratum. The descriptor can then be plotted in both cross-sectional and plan view so as to identify and characterize both lateral and vertical variations in the lithology, geology and pore fluid content of the formation materials comprising the stratum.
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