Character, Continuity, Correlatability, and Coherence
Much of seismic interpretation can be viewed as the process of identifying seismic reflecting horizons between well ties. In some sense, the seismic-interpretation process can be viewed as interpolation between control points at well locations. In a previous chapter, we established a methodology for using synthetic seismograms at well locations to identify seismic reflectors. In this chapter, we discuss the next step — using these control points on seismic sections to identify reflecting horizons between wells. To that end, we will discuss seismic wavelet character and continuity, and we will use coherency measures, such as crosscorrelation — hence, the title.
Figures & Tables
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.