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Book Chapter

Basic Relationships of Well Log Interpretation

Published:
January 01, 1982

Abstract

As logging tools and interpretive methods are developing in accuracy and sophistication, they are playing an expanded role in the geological decision–making process. Today, petrophysical log interpretation is one of the most useful and important tools available to a petroleum geologist.

Besides their traditional use in exploration to correlate zones and to assist with structure and isopach mapping, logs help define physical rock characteristics such as lithology, porosity, pore geometry, and permeability. Logging data is used to identify productive zones, to determine depth and thickness of zones, to distinguish between oil, gas, or water in a reservoir, and to estimate hydrocarbon reserves. Also, geologic maps developed from log interpretation help with determining facies relationships and drilling locations.

As logging tools and interpretive methods are developing in accuracy and sophistication, they are playing an expanded role in the geological decision-making process. Today, petrophysical log interpretation is one of the most useful and important tools available to a petroleum geologist.

Besides their traditional use in exploration to correlate zones and to assist with structure and isopach mapping, logs help define physical rock characteristics such as lithology, porosity, pore geometry, and permeability, Logging data is used to identify productive zones, to determine depth and thickness of zones, to distinguish between oil, gas, or water in a reservoir, and to estimate hydrocarbon reserves. Also, geologic maps developed from log interpretation help with determining facies relationships and drilling locations. Of the various types of logs, the ones used most frequently in hydrocarbon exploration are called

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Contents

AAPG Methods in Exploration

Basic Well Log Analysis for Geologists

George B. Asquith
George B. Asquith
pioneer Production Corporation
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Charles R. Gibosn
Charles R. Gibosn
Alpar Resources Inc.
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American Association of Petroleum Geologists
Volume
3
ISBN electronic:
9781629811710
Publication date:
January 01, 1982

GeoRef

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