Carbonates Petrophysics

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About the Course

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AAPG E-Symposium Series. The overall objective of this course is to review the petrophysics of carbonates, including the “new carbonates” in resource plays. The course will review core data, petrophysical comparisons, rock physics modeling (including pseudo logs and mechanical properties). You will learn:

Basic Petrophysics:

What do we need to know about carbonates?

What makes carbonates different?

Porosity Logs

Resistivity Logs

Gamma Ray

SP

Lithology of carbonates and well logs:

Calcium carbonate

Dolomitic carbonates

Clay minerals in carbonates

Cherty carbonates

Carbonate textures and well logs / petrophysics

Examples

Significance

Interpretations – The Basics with a focus on carbonates

Shale calculations

Porosity calculations

Resistivity/Porosity cross plots to solve Archie’s equation

Influence of clays

Saturation determination

Permeability estimates

Cores vs. well logs

Examples

Issues

Petrophysics of Carbonates as they relate to seismic

Examples

Key issues

Carbonate Petrophysics and Reservoir Characterization

Basic concepts and issues

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Your Instructor


Michael Holmes, PhD, AAPG
Michael Holmes, PhD, AAPG

Michael Holmes, with Digital Formation, Inc., Denver, CO, has a Ph.D. in Geology from the University of London and a M.Sc. in Petroleum Engineering from the Colorado School of Mines. He began his professional career with British Petroleum and then joined Shell Canada. Subsequently, he was a Research Scientist in Marathon's Denver Research Center. For a brief period, he was Exploration and Production Manager for Berry Wiggins in London. In 1974, Dr. Holmes joined H. K. van Poollen and Associates, Petroleum Consultants, as Vice President in charge of North American consulting activities. Additionally, Dr. Holmes was an instructor in a wide range of petroleum courses including geology, well logging, and petroleum economics. In 1978, Dr. Holmes established his own consulting practice, involving petrophysics, technical due diligence, consulting to the United Nations world-wide, expert witness activities, and instructor to IHRDC and the University of Brunei. In 1998, Michael combined consulting activities with software development, to form Digital Formation, Inc. From 1998 to the present, most of Michael's work has been petrophysical analysis and reservoir characterization in reservoirs world-wide. More recently, Digital Formation has developed extensive petrophysical algorithms including rock physics, capillary pressure, and the analysis of unconventional reservoirs.