Pitfalls in seismic amplitude versus offset analysis case histories

Abstract

Early in this decade the new technology of amplitude vs. offset analysis proved to be an effective follow-up to the bright spot technology developed in the previous decade. W. J. Ostrander (1982) pointed out that under proper geologic conditions, gas saturated sandstones showed a marked reflection amplitude increase with increasing offset. G. S. Gassaway and H. J. Richgels (1983, 1984) showed that changing lithologies can also affect the reflection amplitude vs. offset signature. As with all new technologies there is an experience learning curve which is necessary to properly apply this new technology.