Developments in Geophysical Exploration Methods—3

1. Front Matter

   Pages i-x

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2. Underground Geophysics of Coal Seams

   • A. K. Booer

   Pages 1-32

3. Interrelationship of Resistivity and Velocity Logs

   • Albert J. Rudman

   Pages 33-59

4. Focused Resistivity Logs

   • Amalendu Roy

   Pages 61-94

5. Gamma-Ray Logging and Interpretation

   • P. G. Killeen

   Pages 95-150

6. Acoustic Logging: The Complete Waveform and its Interpretation

   • Dennis Rader

   Pages 151-193

7. Electrical Anisotropy: Its Effect on Well Logs

   • J. H. Moran, S. Gianzero

   Pages 195-238

8. Borehole Geophysics in Geothermal Exploration

   • W. Scott Keys

   Pages 239-268

9. Measurement and Analysis of Gravity in Boreholes

   • Joseph R. Hearst, Richard C. Carlson

   Pages 269-303

10. Back Matter

    Pages 305-310

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One of the themes in current geophysical development is the bringing together of the results of observations made on the surface and those made in the subsurface. Several benefits result from this association. The detailed geological knowledge obtained in the subsurface can be extrapolated for short distances with more confidence when the geologi­ cal detail has been related to well-integrated subsurface and surface geophysical data. This is of value when assessing the characteristics of a partially developed petroleum reservoir. Interpretation of geophysical data is generally improved by the experience of seeing the surface and subsurface geophysical expression of a known geological configuration. On the theoretical side, the understanding of the geophysical processes themselves is furthered by the study of the phenomena in depth. As an example, the study of the progress of seismic wave trains downwards and upwards within the earth has proved most instructive. This set of original papers deals with some of the more vigorous developments in subsurface geophysics: and it is hoped that it will contribute to the understanding of geophysical phenomena in the solid. The editor thanks the busy workers in the several fields who have made time to produce these contributions.

• Borehole
• development
• exploration
• geophysics
• reservoir
• seismic

• Formerly of Seismograph Service (England) Limited, Keston, Kent, UK

  A. A. Fitch

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