Migration In Seismic Prospecting: Russian Translations Series 82 (russian Translation Series)

Cover Series Page Half Title Title Page Copyright Page Preface to English Translation Table of Contents Introduction Chapter 1: The Principles of Migration 1.1 Wave Equation 1.2 Interaction of Incident and Reflected Waves 1.3 Kirchhoff’s Integral 1.4 Wavefield Continuation on the Basis of Analytical Integral Solutions of Wave Equations 1.5 Wavefield Continuation by Finite-Difference Solution of the Wave Equation 1.6 Models of the Medium and the Seismic Field; Formulation of the Problem of Migration Chapter 2: Migration in the Space-Time Domain 2.1 Forward Wavefield Continuation 2.2 Inverse Wavefield Continuation 2.3 Features of Migration Based on Integral Transforms in the x, t-Domain 2.4 Finite-Difference Migration in the X, /-domain Chapter 3: Migration in the Frequency Domain 3.1 Migration in Kx, -Domain 3.2 Migration in the Kx, t-Domain 3.3 Migration in x, -Domain Chapter 4: Optimised and Non-Linear Migration 4.1 Ideal and Regularised Migration Filters 4.2 Migration in the Presence of Noise: Unordered Medium 4.3 Migration in the Presence of Noise: Ordered Medium Chapter 5: Effect of Velocity Structure Inhomogeneity 5.1 Direct Migration 5.2 Recursive Migration 5.3 Estimation of Migration Velocities 5.4 Directivity Features of Migration Chapter 6: Pseudo-Three-Dimensional and Three-Dimensional Migrations 6.1 Pseudo-Three-Dimensional Migration for Individual Seismic Profiles 6.2 Three-Dimensional Migration 6.3 Preparation of Input Data for 3-D Migration Chapter 7: Some Peculiarities of Migration Results and Technology 7.1 Effect of Limited Size of Time Section 7.2 Aliasing Effects 7.3 Resolving Power of Migration 7.4 Migration Strategy 7.5 Summary References This book first attempts to formulate the problem of'migration'as a method applied in seismic prospecting and then to comprehend the unifying fundamentals of the numerous and various migration techniques now in use. Guidelines are offered for the practical implementation of this method in complex structural as well as stratigraphic environment and the shortcomings and limitations that ought to be kept in mind when accomplishing migration or interpreting the resultant data are discussed. It will prove of use not only to practising professionals engaged in designing or running migration procedures, but also to those who would rather deal with the results of migration.