One of the main goals of geophysical interpretation is to produce an earth model whose responses fit all the available data (to within some acceptable error tolerance). In Chapter 24, we saw that this was essentially the goal of cooperative inversion.
In this chapter, we will visit briefly with a close cousin of cooperative inversion, geostatistics. Because many textbooks describe geostatistics in more depth than we can here, readers who require more detail are referred to Journel and Huijbregts (1991), Doyen (1988), Isaaks and Srivastava (1989), and Yarus and Chambers (1994).
Geostatistics can provide a set of tools for model prediction and can assign a probability to those predictions. The method typically is used in reservoir characterization to produce model predictions from sets of available geophysical and geologic data. Let us briefly examine a few features of applied geostatistics — forms of prediction known as kriging and cokriging.
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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.