Understanding Oil and Gas Shows and Seals in the Search for Hydrocarbons
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Beschreibung
The book covers in detail the ways to differentiate between residual and continuous phase (trapped) oil, false shows and shows associated with source rocks and tight oil and gas reservoirs (potential unconventional targets). Case histories of finding by-passed plays, new migration routes and new fields will be shown for each major topic. All of these materials are presented in the context of modern petroleum systems modeling of migration and charge, with an emphasis on how to calibrate and test the validity of the computer models. Lastly, exercises are included to reinforce the concepts in each chapter.
The book covers in detail the ways to understand how to use oil and gas show information to find hydrocarbons. It covers the basics of exploration methodologies, drilling and mud systems, cuttings and mud gas show evaluation, fundamental log analysis and pitfalls to log-calculated water saturations. A complete overview of the use of pressures to understand traps and migration, hydrodynamics, and seal and reservoir quantification using capillary pressure underpin important fundamental concepts every petroleum geologist must know. Techniques for quickly generating pseudo-capillary pressure curves from simple porosity/permeability data, with examples of how to build the spreadsheets in Excel, provide quick and simple ways to determine where a test or sample may be in a trap based on its water saturation and rock properties. In addition, a complete treatment of fluid inclusion analysis and fluid inclusion stratigraphy to map migration pathways and recognize by-passed or near miss pay zones is covered and illustrated with numerous examples. Lastly, petroleum systems modeling and fundamental source rock geochemistry is discussed at depth, particularly in the context of unconventional source rock evaluation and screening tools for entering new plays. The promise, perils, and pitfalls of understanding and modeling migration in 3 dimensional space with modern software is examined with an eye toward how to visualize hydrocarbon shows as a means of validating or rejecting the model results.
Perhaps more importantly, the book is heavily illustrated with numerous examples and case histories from the author’s 37 years of exploration experience. The topics covered in this book will give any young geoscientist a quick start on a successful career and serve as a refresher for the more experienced explorers.
A unique guide to how to use currently available oil and gas show information Closes the gap between interpretive understanding of hydrocarbon shows by computer applications and seismic interpretation, and rigorous testing with fundamental information from the wells themselves Examples of spreadsheets used to facilitate quantitative analysis are included Includes supplementary material: sn.pub/extras
Autor*in
John Dolson
Themen in »Understanding Oil and Gas Shows and Seals in the Search for Hydrocarbons«
Fluid Inclusion Gas Shows Gas Trap Mud Gas Oil Migration Oil Seal Oil Shows Oil Trap Petroleum Systems Oil Plays Gas Plays mineral resources economic geology
Stimmen zu »Understanding Oil and Gas Shows and Seals in the Search for Hydrocarbons«
“It becomes an easy reference guide for earth scientists who have practiced their “art” for many years as well as the industry newcomer. … the book is a map on how to improve the search for hydrocarbons. The content of this book will be invaluable to our industry for years to come. The author has done us a great service.” (John B. Thomas, AAPG Bulletin, Vol. 101 (8), August, 2017)
“Mr. Dolson’s book is a long overdue work, filling a critical knowledge gap that has spanned decades of exploration and has resulted in billions of dollars in dry holes. … His years of experience with major oil companies, as well as teaching and consulting, provide an exceptional perspective on this critically important subject. … this book is an absolute must read and keep for explorationists at all levels as well as managers and engineers. … this book is highly recommended.” (David Blanchard, GEOExPro, Vol. 14 (3), May, 2017)
“This is intended as a text for professional geologists beginning a career in oil and gas exploration. The work is based on the author’s more than three decades of experience, mostly in Egypt, India, and Russia. … book is divided into nine chapters, each leading with an abstract and ending with a summary and references. Chapters are profusely illustrated with charts, diagrams, and occasional photos, mostly clear and easily readable … . Summing Up: Recommended. Lower- and upper-division undergraduates; professionals.” (P. Larsen, Choice, Vol. 54 (6), February, 2017)()