APPLICATION OF SURFACE RELATED MULTIPLE ELIMINATION (SRME) AND PARABOLIC RADON TRANSFORM ON A COMPLEX-STRUCTURED SYNTHETIC
<p align="justify">Data processing is an important step in the seismic method which hope to improve the signal quality of the seismic data so that a good seismic section can be obtained. One of its main concerns is to separate main events and noises in the data to get a higher signal...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/25676 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify">Data processing is an important step in the seismic method which hope to improve the signal quality of the seismic data so that a good seismic section can be obtained. One of its main concerns is to separate main events and noises in the data to get a higher signal-to-noise ratio (S/N).Another concern is the imaging resolution of the subsurface structure which often varies and also complex. Marine seismic data is usually dominated by multiples which are noises that need to be removed. Surface Related Multiple Elimination (SRME) and Parabolic Radon Transformation are both multiple elimination methods. Application of both methods is expected to be able to remove the multiples from the data. To deal with the structural problems Dip Moveout Correction can be applied to the data to reposition the reflector to its original position. Common Reflection Surface Stack is a non-conventional stacking method which suppose to generate a better S/N because it includes the geometrical information of the structure to the stacking process. In this study Marmousi II synthetic model will be used as the data. At the end, some analysis will be done by doing comparisons from the processing results. The application of SRME seems to have reduced some part of the multiples but still left residual multiples and to manage that Parabolic Radon Transform is applied. Next, some comparisons will be made between the application of DMO correction and the application of CRS stack. CRS stack method generates a better velocity semblance that shows a better coherence, but the stack section from CRS method only gives a better image in the simple-structured reflectors. While in the complex area application of DMO correction potrayed a better image similar to the initial synthetic model.<p align="justify"> |
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