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Book Chapter

Chapter 12: Downhole Applications of Geophysics

By
Frederick L. Paillet
Frederick L. Paillet
Department of Earth Sciences, University of Maine, Orono, ME, 04469-5790. E-mail: fpaillet@maine.edu.
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Karl J. Ellefsen
Karl J. Ellefsen
U. S. Geological Survey, MS 964, Box 25046, Federal Center, Lakewood, CO 80225. E-mail: ellefsen@usgs.gov
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Published:
January 01, 2005

Introduction Many geotechnical, environmental, and hydrological investigations require information about soil, sediments, bedrock and groundwater. Boreholes are drilled to investigate these materials in the subsurface, and borehole geophysical measurements are one of the primary methods for determining subsurface properties. Borehole geophysics provides measurements of subsurface properties under in-situ conditions, with no missing samples, and using several different physical measurements. Some of these measurements can be directly linked to noninvasive surface soundings, and a number of new borehole geophysical techniques are under development.

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Contents

Investigations in Geophysics

Near-Surface Geophysics

Dwain K. Butler
Dwain K. Butler
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Society of Exploration Geophysicists
Volume
13
ISBN electronic:
9781560801719
Publication date:
January 01, 2005

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