Problems in exploration seismology and their solutions / Lloyd P. Geldart and Robert E. Sheriff.
Series: Geophysical references ; no. 14 | Geophysical references ; v. 14.Publication details: U.S.A : Society of Exploration Geophysicists, c2004.Description: ix, 514 p. : ill. ; 27 cmISBN:- 1560801158 (alk. paper)
- 0931830478 (series)
- 622.1592 22 GEL
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1.Introduction
1.1 Understanding equation
1.2 Solving equation
1.3 Checking solution
2. Theory of seismic waves
2.1 The basic elastic constants
2.2 Interrelationships among elastic constants
2.3 Magnitude of disturbance from a seismic source
2.4 Magnitude of elastic constants
etc
3. Partitioning at an interface
3.1 General from of snell's law
3.2 Reflection / refraction at a solid interface ; displacement of a free surface
3.3 Reflection / refraction at a liquid/ solid interface
ETC
4. Geometry of seismic waves
4.1 Accuracy of normal move out calculation
4.2 Dip cross dip and angle of approach
4.3 X2- T2 Relationship for a dipping bed
etc
5. Seismic velocity
5.1 Maximum porosity versus depth
5.2 Relation between lithology and seismic velocities
5.3 Porosities, velocities and densities of rocks
etc
6. Characteristics of seismic events
6.1 Characteristics of different types of events and noise
6.2 Horizontal resolution
6.3 Reflection and refraction laws and fermat's principle
etc
7. Seismic equipment
7.1 Radiolocation errors because of velocity variations
7.2 Effect of station angle on location errors
7.3 Transit satellite navigation
etc
8. Reflection field methods
8.1 Effect of too many groups connected to the cable
8.2 Reflection point smear for dipping reflectors
3.3 Stacking charts
etc
9.Data processing
9.1 Fourier series
9.2 Space domain convolution ; vibroseis acquisition
9.3 Fourier transforms of the unit impulse and boxcar
etc
10. Geological interpretation of reflection data
10.1 Improvement due to amplitude preservation
10.2 Deducing fault geometry from well data
10.3 Structural style
etc
11. Refraction method
11.1 Salt lead time as a function of depth
11.2 Effect of assumption on reflraction interpretation
11.3 Effect of a hidden layer
etc
12. 3D method
12.1 Spatial sampling restrictions
12.2 Bin size in marine work
12.3 Effect of cross current
etc
13. Specialised technques
13.1 S. Wave conversion in marine
13.2 Equally inclined orthogonal geophones
13.3 Guided (channel ) waves : normal mode propagation
etc
14. Specialised application
14.1 Using refraction method to find depth to bedrock
14.2 Interpreting engineering refraction profiles
14.3 Interpretation of four shot refraction data
References : p.505-507 . _ Index : P509-514
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