Chapter 3: Geologic Setting
The case studies in this book are primarily from the onshore Texas Qulf Coast Yegua Formation. Exploration in the Yegua is challenging as the deposition of reservoir-quality sands was controlled by fluvial-deltaic processes resulting in erratic sand deposition and rapid lateral changes in depositional style and facies.
Figures & Tables
Amplitude Variation with Offset: Gulf Coast Case Studies
A cursory look at the contents of the book might lead the reader to belive that AVO is not a successful hydrocarbon indicator, as we show many examples of AVO predictions gone awry, and dry holes drilled based on AVO anomalies. However, a closer look at the pages will give the reader the message we are trying to convey: used properly and cautiously, AVO can be a valuable tool for direct detection. The preponderance of unhappy endings in the book is unavoidable, as the goal of this book is to provide information that may prevent other dry holes being drilled. Inevitably, the best lessons are learned from mistakes, a statement that applies to life in general as well as to seismic interpretation.