#TITLE_ALTERNATIVE#

• Main Author: BUDIARTO (NIM : 12308050), FEBRIAN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22126
• Institution: Institut Teknologi Bandung

Stacking is one important step in the reflection seismic data processing. Common-reflection-surface (CRS) is a reflection seismic data processing method that considered still new, that produce a better stacked image and higher signal-to-noise ratio than the conventional methods. CRS operators stacks are completely different from conventional method. These CRS operators stacks are a function of three CRS attributes that independent. This method, use operators that represent local reflector characters even more detail than the conventional method, because the CRS operators stacks including dip and it's curvature. These attributes CRS are emergence angle (α) and two radii of hypothetical wave curvatures normal incidence point (NIP) RNIP and normal (N) RN. Those CRS attributes extracted from pre-stack seismic data by using optimization scheme with coherence as objective function. An area, could contain more than just one event that contribute, we can see at the response of the coherence spectra, that usually we could found in fault structure, and salt dome; which produce diffraction to this structure that cover the real reflection events, this condition called as conflicting dip. Pragmatic CRS stack approach, only calculate one stacking operator at each ZO that simulated. SO that conflicting dip can't be resolve using the Pragmatic CRS stack. To accommodate the conflicting dip issues, they developed the CRS extended strategy. In this thesis, the author try to arrange CRS stack algorithm using MATLAB software, start from creating the algorithm to find the attributes CRS until the stacking , so people can understand every single equation and each works step in the CRS extended process. Data that we used in this thesis is synthetic seismic Marmousi data, to simulate the processing of Extended CRS. In this research the researcher failed to enhance the coherent event in the extended CRS stacking section compared to pragmatic CRS, but after we migrate that stacking section, we earn the differences between them, it can be seen at the fault event in the migrated extended data that even more obvious if we the discontinuity of the reflection layer.