The multiples in seismic data cause distortions of primary reflections from the target layer, which will affect the accuracy of the final imaging and hence reduce the reliability of seismic interpretation. In this paper, we describe an efficient method that attenuates multiples from post-stack or migrated seismic data. It is named the zero offset SRME because the source and receiver are located at the same position without associating with offset and azimuth. The method is based on Surface-Related Multiple Elimination (SRME), which is derived from wave equation theory and is widely used in seismic marine data processing. Like conventional marine SRME methods, the zero offset SRME method does not rely on knowledge of subsurface structures or properties, and does not use seismic event properties to discriminate multiples and primaries. But unlike conventional 3D-SRME methods, the zero offset SRME method does not require harsh conditions, such as trace interpolations, signal-to-noise improvement, and amplitude balancing, as post-stack or imaging seismic data from desert areas has high signal-to-noise ratio and balanced amplitude. To demonstrate the effectiveness of zero offset SRME, we have applied it to a synthetic Sigsbee dataset and a real seismic data in the desert area from Tarim basin. Both results show efficacy in improving the accuracy of seismic imaging.
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SEG/AAPG International Meeting for Applied Geoscience & Energy
August 26–29, 2024
Houston, Texas
Multiple prediction and removal via zero offset SRME: a case study from the Tarim Basin
Haijun Yang;
Haijun Yang
Tarim Oilfield Company, PetroChina
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Gengxin Peng;
Gengxin Peng
Tarim Oilfield Company, PetroChina
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Duoming Zheng;
Duoming Zheng
Tarim Oilfield Company, PetroChina
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Ruirui Zhao;
Ruirui Zhao
Tarim Oilfield Company, PetroChina
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Chuanwen Sun
Chuanwen Sun
Reliable GeoInfo LLC
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Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, Houston, Texas, August 2024.
Paper Number:
SEG-2024-4074554
Published:
August 26 2024
Citation
Li, Yalin, Yang, Haijun, Peng, Gengxin, Zheng, Duoming, Zhao, Ruirui, and Chuanwen Sun. "Multiple prediction and removal via zero offset SRME: a case study from the Tarim Basin." Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, Houston, Texas, August 2024. doi: https://doi.org/10.1190/image2024-4074554.1
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