Publisher : Elsevier Science Ltd (January 1976)
ISBN : 978-0444413987
Number of Pages : 341
File Type : PDF
This book is essentially about stratigraphic traps for oil and gas. Many of the examples discussed are geomorphologic features having inherent closures without any secondary structural element; others are primarily geomorphologic features modified by folding or faulting t o produce local closures. The first category comprises traps that are purely stratigraphic, although the accumulation of hydrocarbons may have been assisted by regional or local tilting of the strata, or by deformation caused by compaction of the underlying sediments. The second category, which includes a much larger number of know examples, comprises structural-stratigraphic traps. Many of these traps have proved t o be elusive, particularly those of the first category which commonly defy detection by seismic methods. In some cases, discovery has been accidental, and further exploration t o delineate the accumulation has been empirical.
The purport of this book is to briefly present examples illustrating the main geological characteristics of geomorphologic features that have controlled or influenced the accumulation of oil and gas in particular fields, with a view to using such examples as models in the search for new fields in sandstone bodies. Many of the examples presented have been so well documented that they stand as classic examples of stratigraphic fields in which oil and gas accumulations are controlled by geomorphologic features. Others have yet t o be defined unequivocally, but are included as additional references to assist in the interpretation of geophysical and sub-surface geological data.
The author is indebted t o the many geologists who have written about the hydrocarbon accumulations and geological features described herein, without whose efforts it would not have been possible to compile this book. The purport of this book is to briefly present examples illustrating the main
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