Foreword to the First Edition

The petroleum geologist is vital to the economic security of oil-producing nations. The geologist’s ability to effectively explore and find oil and gas in the future will have a profound impact on oil-producing nations. Therefore, there is going to be a vital need in the years to come for well-trained, well-educated petroleum geologists.

Applied Subsurface Geological Mapping is a complete and thorough exposition on the subject of subsurface petroleum geologic methods. It explains and illustrates graphically the principles necessary to successfully search for and develop deposits of oil and gas. It covers a wide range of topics in subsurface mapping and is written and illustrated in an easy-to-understand manner. The material not only is designed for the student of petroleum geology but also is appropriate for the experienced geologist who needs to sharpen his tools.

The authors of the book are uniquely qualified to write a comprehensive work on applied subsurface geological mapping. Dan Tearpock has extensive practical petroleum geological and engineering experience, having worked as a development geologist for several companies and as a consultant. In addition, he has organized training courses and taught subsurface mapping to many geologists, geophysicists, and engineers. The co-author, Dr. Richard E. Bischke, has a PhD in Geology from Columbia University. He served as Chief Geophysicist for International Exploration for over twelve years and has most recently served on the Research Staff of Princeton University. Through the expertise and experience of both, they have combined to write a text that will quickly become the “Bible” of subsurface mapping.

Frank W. Harrison, Jr.                 
Consulting Geologist                  
Past President AAPG (1981–82)

Foreword to the Second Edition

The daily life of geoscientists includes only a few truly fundamental activities, but among them is making maps. Indeed, we mark the birth of modern geology by the publication in 1815 of William Smith’s Geologic Map of England. That map was the scientific progeny originating from an economic incentive to identify and locate in the subsurface the best seams of coal. This coupling of science and economics has continued over the intervening two centuries with the publication of this, the second edition of Applied Subsurface Geological Mapping With Structural Methods.

Today the scope of subsurface mapping goes well beyond the original goal to map with spatial accuracy, and it now includes many technologies that, when used together, yield insight to both predictive relationships and geological history. Toward that end of integration, the authors have expanded their treatment of geological settings and included new structural geology chapters on compressional, strike-slip, and extensional settings, as well as growth structures. They have also added a chapter on 3D seismic interpretation and expanded the emphasis on computing tools to include those used to contour, correlate, build cross sections, and analyze fault seal.

Through the years, this constantly increasing complexity has led to a greater appreciation of the value of the integrated solution. Accordingly, Tearpock and Bischke have produced a book with an unusual breadth of practical applications gathered from their extensive teaching, consulting, and resultant research. This mix has produced an analytically rigorous work and a selection of illustrative applications that help the novice to the experienced become both a better specialist and a better integrator.

Our profession is fortunate to have the skills of Dan Tearpock and Richard Bischke because both of these authors are passionate about their subject and dedicated to sharing their ideas with others.

Dr. Richard S. Bishop                 
Past President AAPG (1998–99)

Foreword to the Third Edition

Geoscientists must visualize the unknown from limited data and extrapolate renderings of surfaces and rock volumes to predict the location of valuable recoverable solids, fluids, and gases. We communicate these 3D solutions using maps, cross sections, and conceptual models so that integrated teams can work together to provide prosperity to an energy-hungry world. That world has changed dramatically in the last several decades. Geoscientists must dedicate themselves to the task of lifelong learning as rapid advances in technology continually provide us with new tools.

Applied Three-Dimensional Subsurface Geological Mapping is a valuable treatise on Mother Nature’s rule book. The third edition includes an expanded tool kit of computing, horizontal drilling, unconventional resources, 3D seismic, new structural solutions, and enhanced seismic imaging. Discussions include how traditional techniques such as restored tops and the Wharton method of net pay mapping can be adapted to the workstation, how measuring depth in the subsurface varies from wireline to LWD logs, and a discussion of horizontal wells.

Dan Tearpock and Richard Bischke have built a strong foundation. Contributions from Jim Brenneke, Dick Bischke, and David Metzner enhance our subsurface understanding to help the reader cultivate the venerable habits of the highly successful oil finder. On a personal note, it was a great honor for me to work with Dan Tearpock to fulfill the promise of the 2006 AAPG Convention. Our theme, “Perfecting the Search—Delivering on Promises,” celebrated good science serving human needs in a business context.

Dr. Charles A. Sternbach            
Consulting Geologist                  
Past President AAPG (2017–18)

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