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3차원 이방성 탄성파 영상화 기술 동향

Review of 3D Anisotropic Seismic Imaging Technology

오주원
한국자원공학회 (The Korean Society of Mineral and Energy Resources Engineers)|2022.04|한국자원공학회지 (Journal of the Korean Society of Mineral and Energy Resources Engineers)|제59권 제2호|pp. 240-258

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키워드

이산화탄소 지중저장carbon capture and storage탄성파 이방성seismic anisotropy3차원 탄성파 탐사3차원 탄성파 영상화3D seismic survey3D seismic imaging
주제분류자원공학

초록

최근 3차원 탄성파 영상화 기술이 신규 유전 개발과 이산화탄소 지중저장소 탐사 및 모니터링에 대한 국제 사회의 수요가 증가함에 따라 큰 주목을 받고 있다. 3차원 탄성파 탐사자료는 다양한 형태의 탄성파 이방성에 의해 왜곡될 수 있기 때문에 이를 고려할 수 있는 이방성 탄성파 영상화 기술이요구된다. 본 총설에서는 다양한 형태의 탄성파 이방성의 원인과 탐사 자료에 미치는 영향을 설명하고, 모델링, 완전파형역산, 역시간 구조보정 기술을 중심으로 이방성 영상화 기술 개발 동향을 소개한다. 마지막으로 3차원 이방성 탄성파 영상화 기술의 국내 개발 현황과 앞으로의 전망을 소개한다.

Abstract

Recently, 3D seismic imaging techniques have been highlighted with increasing international demands on the discovery of new oil fields as well as the site characterization and CO2 monitoring in carbon capture and storage. Because 3D seismic data can be distorted by various types of seismic anisotropy, a 3D anisotropic seismic imaging technique is required. In this study, we explain the geological reasons for seismic anisotropy and the influence of seismic anisotropy on 3D seismic data. Then, we introduce international research trends in anisotropic seismic imaging depending on seismic modeling, full-waveform inversion, and reverse-time migration. Finally, we introduce the current status and future trends in Korean 3D anisotropic seismic imaging technology.

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