UID:
edocfu_9961294702202883
Umfang:
1 online resource (xx, 770 pages) :
,
digital, PDF file(s).
Ausgabe:
2nd ed.
ISBN:
1-139-63569-7
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1-139-64851-9
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1-139-63803-3
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1-139-64087-9
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1-139-16793-6
,
0-511-66764-7
Inhalt:
This is the completely revised and updated version of the popular and highly regarded textbook, Applied Geophysics. It describes the physical methods involved in exploration for hydrocarbons and minerals, which include gravity, magnetic, seismic, electrical, electromagnetic, radioactivity, and well-logging methods. All aspects of these methods are described, including basic theory, field equipment, techniques of data acquisition, data processing and interpretation, with the objective of locating commercial deposits of minerals, oil, and gas and determining their extent. In the fourteen years or so since the first edition of Applied Geophysics, many changes have taken place in this field, mainly as the result of new techniques, better instrumentation, and increased use of computers in the field and in the interpretation of data. The authors describe these changes in considerable detail, including improved methods of solving the inverse problem, specialized seismic methods, magnetotellurics as a practical exploration method, time-domain electromagnetic methods, increased use of gamma-ray spectrometers, and improved well-logging methods and interpretation.
Anmerkung:
Title from publisher's bibliographic system (viewed on 18 Jul 2016).
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Cover; Half Title; Title Page; Copyright; Contents; Preface to the Second Edition; Excerpts from Preface to the FirstEdition; Mathematical Conventions; 1.Introduction; Reference; 2. Gravity Methods; 2.1. Introduction; 2.1.1. General; 2.1.2. History of Gravity Exploration; 2.2. Principles of Gravity; 2.2.1. Newton's Law of Gravitation; 2.2.2. Acceleration of Gravity; 2.2.3. Gravitational Potential; 2.2.4. Potential-Field Equations; 2.2.5. Derivatives of the Potential; 2.3. Gravity of the Earth; 2.3.1. Figure of the Earth; 2.3.2. Gravity Reduction; 2.3.3. Densities of Rocks and Minerals
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2.3.4. Density Estimates from Field Results2.4. Gravity Instruments; 2.4.1. General; 2.4.2. Absolute Measurement of Gravity; 2.4.3. Relative Measurement of Gravity; 2.5. Field Operations; 2.5.1. Land Surveys; 2.5.2. Drift Correction; 2.5.3. Marine Surveys; 2.5.4. Airborne Gravity; 2.6. Gravity Data Processing; 2.6.1. Noise, Regionals, and Residuals; 2.6.2. Graphical Residualizing; 2.6.3. Surface-Fitting Residualizing Methods; 2.6.4. Empirical Gridding Methods; 2.6.5. Second Vertical Derivative Methods; 2.6.6. Wavelength Filtering; 2.6.7. Field Continuation; 2.7. Gravity Interpretation
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2.7.1. General2.7.2. Gravity Effect of a Sphere; 2.7.3. Gravity Effect of a Horizontal Rod; 2.7.4. Gravity Effect of a Vertical Cylinder; 2.7.5. Gravity Effect of a Thin Dipping Sheet; 2.7.6. Gravity Effect of Horizontal Sheets,Slabs, Dikes, and Faults; 2.7.7. Applying Simple Models to Actual Anomalies; 2.7.8. Gravity Effects of Complex Shapes; 2.7.9. The Direct and Inverse Problems of Interpretation; 2.7.10. Excess Mass; 2.7.11. Overburden Effects; 2.7.12. Maximum-Depth Rules; 2.8. Field Examples; 2.9. Problems; References; 3. Magnetic Methods; 3.1. Introduction; 3.1.1. General
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3.1.2. History of Magnetic Methods3.2. Principles and Elementary Theory; 3.2.1. Classical Versus Electromagnetic Concepts; 3.2.2. B-H Relations: The Hysteresis Loop; 3.2.3. Magnetostatic Potential for a Dipole Field; 3.2.4. The General Magnetic Anomaly; 3.2.5. Poisson's Relation; 3.3. Magnetism of the Earth; 3.3.1. Nature of the Geomagnetic Field; 3.3.2. The Main Field; 3.3.3. The External Magnetic Field; 3.3.4. Local Magnetic Anomalies; 3.3.5. Magnetism of Rocks and Minerals; 3.3.6. Remanent Magnetism; 3.3.7. Magnetic Susceptibilities of Rocks and Minerals
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3.3.8. Magnetic Susceptibility Measurements3.4. Field Instruments for Magnetic Measurements; 3.4.1. General; 3.4.2. Flux-gate Magnetometer; 3.4.3. Proton-Precession Magnetometer; 3.4.4. Optically Pumped Magnetometer; 3.4.5. Gradiometers; 3.4.6. Instrument Recording; 3.4.7. Calibration of Magnetometers; 3.5. Field Operations; 3.5.1. General; 3.5.2. Airborne Magnetic Surveys; 3.5.3. Shipborne Magnetic Surveys; 3.5.4. Ground Magnetic Surveys; 3.5.5. Gradiometer Surveys; 3.6. Magnetic Effects of Simple Shapes; 3.6.1. General; 3.6.2. The Isolated Pole (Monopole); 3.6.3. The Dipole
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3.6.4. Two-Dimensional Features
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English
Weitere Ausg.:
ISBN 0-521-33938-3
Weitere Ausg.:
ISBN 0-521-32693-1
Sprache:
Englisch
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