?High tech? exploration without high cost

Abstract

An example of inversion modelling and interpretation which can be done on a personal computer, and three examples of significant seismic data improvement achieved by simple application of oft-overlooked basic procedures, are presented. Acoustic impedance traces containing only those frequencies recorded in the field can be easily generated from zero-phase seismic data. Forward modelling of these traces using a personal computer can determine lithology and porosity. A short case history of modelling a Miocene reef is presented. Shallow anamolies of limited areal extent can sometimes distort raypaths to the degree that desired reflections are not received. Designing field setups to avoid such a problem is common on land. An example of successful application of this technique offshore is presented. Another problem more common onshore than offshore is statics. An example of a marine statics problem is presented. Finally, the most neglected process of all, display, has been addressed. I intend to show, that contrary to the beliefs of many, this is not a totally subjective topic.