公开(公告)号：US20250012941A1

公开(公告)日：2025-01-09

申请号：US18750554

申请日：2024-06-21

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY

Inventor： Jong Ha HWANG ,  Sang Hoon LEE ,  Yun Hui PARK ,  Soo Kwan KIM ,  Su Hwan LEE ,  Hye Jin MOON

IPC: G01V1/34 ,  G01V1/38

Abstract: The present disclosure relates to a reverse-time migration method for marine vertical cable seismic (VCS) survey data and provides a reverse-time migration apparatus and method for vertical cable seismic (VCS) survey data using directional propagation of receiver wavefields, configured to perform equation-of-motion-based transform and inverse-transform processing on observed pressure wavefields during back-propagation of receiver wavefields to solve the problem of reflection boundary screening due to long-wavelength artifacts and avoid up/down wavefield separation to thereby simplify a migration process and improve overall quality of migration images.