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Book Chapter

Introduction

Published:
January 01, 2005

Abstract

Fossil fuels will remain an important source of energy for much of this century under most energy projections, although their abundance and potential shortages are debated. Their distribution, quantities, and availability will thus continue to be of paramount importance for world economies. Policy decisions made in the U.S. and elsewhere depend on detailed knowledge of petroleum resources and their distribution in the world. Therefore, petroleum resources are periodically reassessed, not just because new data become available and better geologic models are developed, but also because many non-geologic factors such as technologic advances, accessibility to markets, and geographic or societal constraints determine which part of the crustal abundance of petroleum will be economic and acceptable throughout some foreseeable future.

Detailed petroleum information was published in a recent world assessment of petroleum resources conducted by the U.S. Geological Survey (USGS) in their World Petroleum Assessment (WPA) 2000 (USGS, 2000). Two major components of world petroleum resources exclusive of the United States were assessed by the U.S. Geological Survey (USGS, 2000): undiscovered conventional resources and reserve (field) growth. This assessment provided estimates of the quantities of conventional technically recoverable oil, natural gas, and natural gas liquids (NGL), outside the United States, that have the potential to be added to reserves (Table 1). Many individuals and groups, such as the International Energy Agency (IEA 2000, 2001, 2002) and the Energy Information Administration of the Department of Energy (EIA, 2000, 2001a,b), Cavallo (2002), and Greene et al. (2003) use the USGS (2000) study as

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Contents

AAPG Memoir

Global Resource Estimates from Total Petroleum Systems

Thomas S. Ahlbrandt
Thomas S. Ahlbrandt
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Ronald R. Charpentier
Ronald R. Charpentier
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T. R. Klett
T. R. Klett
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James W. Schmoker
James W. Schmoker
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Christopher J. Schenk
Christopher J. Schenk
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Gregory F. Ulmishek
Gregory F. Ulmishek
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American Association of Petroleum Geologists
Volume
86
ISBN electronic:
9781629810430
Publication date:
January 01, 2005

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