Inversion of reflection seismograms by differential semblance analysis: algorithm structure and synthetic examples1
نویسندگان
چکیده
منابع مشابه
Extended Reflection Waveform Inversion via Differential Semblance Optimization
Reflection-based waveform inversion introduces migration and demigration process to retrieve low-wavenumber component from reflection data, but both differenceand correlationbased methods suffer from the cycle-skipping problem when the time shifts change rapidly. In this abstract, we introduce model extension and differential semblance optimization into reflection-based waveform inversion. With...
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In crosswell seismic experiments, seismic sources are red in one well, and the waveeelds generated are measured in another well. The goal of the crosswell seismology is to nd physical parameters, especially the velocities, of the rocks between the wells from these measurements. This amounts to the mathematical problem of solving a coeecient inverse problem of the multidimensional acoustic wave ...
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Migration velocity analysis (MVA) is an approach to solve a partially linearized variant of the waveform inversion problem, i.e. linear in short scales, nonlinear in long scales. The linear inversion part is often approximated by migration in practice, which is only adjoint of linearized Born modeling operator. In this abstract, we derive the gradient formulas for short scales and long scales s...
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ژورنال
عنوان ژورنال: Geophysical Prospecting
سال: 1994
ISSN: 0016-8025,1365-2478
DOI: 10.1111/j.1365-2478.1994.tb00231.x