Post-Stack Seismic Data Enhancement of Thrust-Belt Area, Sabah Basin

3rd International Conference on Geological, Geographical, Aerospace and Earth Science 2015

Latiff, A.H. Abdul^1 ; Jamaludin, S.N.F.^1 ; Zakariah, M.N.A.^1

Centre for Seismic Imaging, Geosciences Department, Universiti Teknologi PETRONAS, Malaysia^1

关键词: Attribute analysis;    Frequency filtering;    Geological setting;    Hidden structures;    Low signal-to-noise ratio;    Seismic data processing;    Seismic data quality;    Thrust belts;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/30/1/012006/pdf
DOI  :  10.1088/1755-1315/30/1/012006

来源: IOP

【 摘 要 】

In this paper, an integrated post-stack seismic data processing and interpretation for a complex thrust-belt area was proposed. The sequence was suggested due to poor seismic data quality of the Sabah basin area that was obtained after a pre-stack data processing sequences. This basin consists of a complex geological setting such as thrust-belt with steep dip reflector which is the main features of the region. In this paper, we outlined several methods used in the seismic data processing and interpretation such as amplitude recovery and frequency filtering for enhancing seismic data quality, and relative acoustic impedance, structural smoothing and wavelet coherency were used for attribute analysis. The outcome from this research aims at illuminating the hidden structures such as proper beds termination and faults systems that was heavily affected by low signal-to-noise ratio.