USGS

Borehole Geophysics Applied to Ground-Water Investigations

U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 2, Chapter E-2

By W. Scott Keys


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Sections available in pdf:

Section 1 -- 2.03 MB

Abstract

Introduction

Section 2 -- 2.87 MB

Analysis of logs

Petrophysics and log response

Ground-water flow and log response

Interstitial fluids and log response

Chemical composition

Borehole effects

Geometric effects

Section 3 -- 2.02 MB

Logging equipment

Planning a logging program

Quality control of logs

Calibration and standardization of logs

Test 1.—Principles, equipment, and log-analysis techniques.

Section 4 -- 2.13 MB

Electric logging

Test 2.—Electric logging

Section 5 -- 4.08 MB

Nuclear logging

Test 3.—Nuclear logging

Section 6 -- 4.60 MB

Acoustic logging

Caliper logging

Test 4.—Acoustic and caliper logging

Fluid logging

Well-construction logging

Test 5.—Fluid and well-construction logging

Summary-A case history

Acknowledgments

Selected references

Answers to test questions


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