<p>Feathering correction is a critical step in seismic data acquisition to ensure accurate imaging of subsurface structures and precise data processing. Conventional methods often neglect the potential advantages of utilizing direct arrivals for feathering correction. This study introduces a novel approach that leverages direct arrivals to calculate feathering angles and apply corrections. The method derives corrections by analyzing discrepancies between theoretical and observed direct arrival times and angles. Its effectiveness was validated using real-world datasets, demonstrating significant improvements in data quality and accuracy. The corrected seismic data showed precise alignment between the observed seabed features and independent measurements obtained from Multi-Beam Echo Sounder (MBES) systems, confirming the method’s reliability. Furthermore, the approach accurately determined feathering angles, which are essential parameters for optimizing survey acquisition. These results highlight the robustness of the proposed technique in mitigating feathering effects, and enhancing the recovery of critical subsurface information.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Investigating the reduction of feathering effects in seismic imaging through offset correction and feathering angle computation using direct arrivals

  • Xuan-Bach Luu,
  • Hyun-Do Kim,
  • Yeong-Hyun Kim,
  • Thanh-Phuong Giang

摘要

Feathering correction is a critical step in seismic data acquisition to ensure accurate imaging of subsurface structures and precise data processing. Conventional methods often neglect the potential advantages of utilizing direct arrivals for feathering correction. This study introduces a novel approach that leverages direct arrivals to calculate feathering angles and apply corrections. The method derives corrections by analyzing discrepancies between theoretical and observed direct arrival times and angles. Its effectiveness was validated using real-world datasets, demonstrating significant improvements in data quality and accuracy. The corrected seismic data showed precise alignment between the observed seabed features and independent measurements obtained from Multi-Beam Echo Sounder (MBES) systems, confirming the method’s reliability. Furthermore, the approach accurately determined feathering angles, which are essential parameters for optimizing survey acquisition. These results highlight the robustness of the proposed technique in mitigating feathering effects, and enhancing the recovery of critical subsurface information.