Chapter 10: AVO Anomaly Due to Tuning
A prospect with a field analog showing the same responses in amplitude, inversion, and AVO behavior was drilled unsuccessfully. In this example, the difference between the field and a prospect on the same seismic line is in the structural configuration. The field, was a flat-lying stratigraphic trap while the prospect was a stratigraphic trap formed by a wedge.
Field analog was not a structural analog, in that the producing field was essentially flat-lying and the prospect was a wedge.
Wedging geometries can produce amplitude, inversion, and AVO anomalies.
A strong analog with a producing field on the same seismic line and a number of positive hydrocarbon indicators associated with the prospect probably made this dry hole unavoidable.