BASIC EARTH IMAGING (Yerküre’nin Modellenmesi)
Theme : The main theme of this book is to take a good quality reflection seismic data set from the Gulf of Mexico and guide you through the basic geophysical data processing steps from raw data to the best-quality final image. Secondary themes are to introduce you (1) to cleaned up but real working Fortran code that does the job, (2) to the concept of “adjoint operator”, and (3) to the notion of electronic document.
Özet : Bu kitabın ana teması, Meksika Körfezi’nden kaliteli bir sismik yansıma verisi almak ve ham verilerden en iyi kalitede nihai görüntüye ulaşana kadar temel jeofizik veri işleme aşamaları boyunca size rehberlik etmektir. Diğer amaç ise, bu veri işlemi gerçekleştiren Fortran kodlarını sunmaktır.
Contents – İçerik
1 Field recording geometry
1.1 RECORDING GEOMETRY
1.2 TEXTURE
2 Adjoint operators
2.1 FAMILIAR OPERATORS
2.2 ADJOINTS AND INVERSES
3 Waves in strata
3.1 TRAVEL-TIME DEPTH
3.2 HORIZONTALLY MOVINGWAVES
3.3 DIPPINGWAVES
3.4 CURVED WAVEFRONTS
4 Moveout, velocity, and stacking
4.1 INTERPOLATION AS A MATRIX
4.2 THE NORMAL MOVEOUT MAPPING
4.3 COMMON-MIDPOINT STACKING
4.4 VELOCITY SPECTRA
5 Zero-offset migration
5.1 MIGRATION DEFINED
5.2 HYPERBOLA PROGRAMMING
6 Waves and Fourier sums
6.1 FOURIER TRANSFORM
6.2 INVERTIBLE SLOW FT PROGRAM
6.3 CORRELATION AND SPECTRA
6.4 SETTING UP THE FAST FOURIER TRANSFORM
6.5 SETTING UP 2-D FT
6.6 THE HALF-ORDER DERIVATIVE WAVEFORM
6.7 References
7 Downward continuation
7.1 MIGRATION BY DOWNWARD CONTINUATION
7.2 DOWNWARD CONTINUATION
7.3 PHASE-SHIFT MIGRATION
8 Dip and offset together
8.1 PRESTACK MIGRATION
8.2 INTRODUCTION TO DIP
8.3 TROUBLE WITH DIPPING REFLECTORS
8.4 SHERWOOD’S DEVILISH
8.5 ROCCA’S SMEAR OPERATOR
8.6 DMO IN THE PROCESSING FLOW
9 Finite-difference migration
9.1 THE PARABOLIC EQUATION
9.2 SPLITTING AND SEPARATION
9.3 FINITE DIFFERENCING IN (omega,x)-SPACE
9.4 WAVEMOVIE PROGRAM
9.5 HIGHER ANGLE ACCURACY
10 Imaging in shot-geophone space
10.1 TOMOGRAPY OF REFLECTION DATA
10.2 SEISMIC RECIPROCITY IN PRINCIPLE AND IN PRACTICE
10.3 SURVEY SINKING WITH THE DSR EQUATION
10.4 THE MEANING OF THE DSR EQUATION
11 Antialiased hyperbolas
11.1 MIMICING FIELD ARRAY ANTIALIASING
11.2 MIGRATION WITH ANTIALIASING
12 RATional FORtran == Ratfor
13 Seplib and SEP software
13.1 THE DATA CUBE
13.2 THE HISTORY FILE
13.3 MEMORY ALLOCATION
13.4 SHARED SUBROUTINES
13.5 REFERENCES
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