단일채널 탄성파 탐사자료의 속성분석 및 정밀해석
Seismic Attribute Analysis and Interpretation with Single Channel Seismic Data of Shallow Marine
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
단일채널 탄성파탐사(single channel seismic survey)는 소규모의 시스템을 이용하므로 현장작업이 용이하고, 간단한 자료처리 과정을 거쳐 지층단면도를 얻음으로써 비용이 저렴하다는 장점 때문에 엔지니어링 목적의 탐사에 많이 활용되고 있다. 본 연구에서는 단일채널 탄성파 탐사자료의 품질 향상을 위하여 너울필터(swell filter), 주파수필터, 디콘볼루션 등의 자료처리 과정을 적용하였다. 단일채널 탐사자료의 속성분석에서는 복소트레이스로부터 반사강도(reflection strength)와 그 1차 미분(first derivative of reflection strength), 순간위상(instantaneous phase)에 대한 특성을 분석하였다. 스펙트럼 분해(spectral decomposition)를 통하여 지층 내부 구성 물질을 추정할 수 있었고, 다중반사파를 명확하게 구분하였다. 석유탐사 분야에 활용되는 3차원 탄성파 자료해석기술을단일채널 탐사자료에 적용하여 엔지니어링 목적에 필요한 지층구조 및 내부 구성 물질을 정확하게 파악할 수있었다.
Abstract
The single channel seismic survey is very useful in the engineering field, which has the advantages of a low cost and an easy field work due to small scale survey system and simple data processing. For the purpose of enhancing data quality, we applied conventional data processing methods to single channel seismic data such as swell filter, frequency filtering and deconvolution. We carried out seismic attribute analysis which includes reflection strength, first derivative of reflection strength, and instantaneous phase calculated from complex seismic trace. We could not only estimate a geological structure and composition but also could distinguish clearly multiple from reflection events using spectral decomposition. We could successfully get a detailed geological information by means of 3-D seismic data interpretation technique.
참고문헌 (26)
- Alistair, R. B., "Interpretation of Three-Dimensional Seismic data", pp.247~320 (2003), Society Exploration Geophygics
- Castagna, J.P., "Comparison of spectral decomposition methods", First Break, 24(3), pp.75~79 (2006)
- Castro, D.M.M., "Revealing geological features through seismic attributes extracted from the wavelet transform Teager-Kaiser energy", 77th Annual International Meeting, SEG, Expanded Abstracts, pp.1442~1446 (2007)
- Chopra, M., "Seismic Attributes for Prospect Identification and Reservoir Characterization", pp.8~24 (2007), Society Exploration Geophygics
- Deng, J. X., "Application of Spectral Decomposition to Detect Deepwater Gas Reservoir", 77th Annual International Meeting, SEG, Expanded Abstracts, pp.1427~1431 (2007)
- Emery, D., "Sequence Stratigraphy", pp.11~41 (1996), Wiley
- Farnbach, J. S., "The complex envelope in seismic signal analysis", Bulletin of the Seismological Society of America, 65, pp.951~962 (1975)
- 하지호, "해양플랜트 설치를 위한 해양물리탐사 기법 제안", 한국마린엔지니어링학회지, 37(2), pp.242~251 (2013), 한국마린엔지니어링학회
- 장성형, "가스 하이드레이트 탄성파 자료 복소분석 해석", 한국자원공학회지, 42(3), pp.180~190 (2005), 한국자원공학회
- Kim, C.S., "A study on the shallow marine site survey using seismic reflection and refraction method", 석사, pp.2007
- Kim, J.H., "An accurate sea bottom detection by image color reduction method", 동아대학교해양자원연구소 연구논문집, 16 (2004)
- Kim, W. S., "대천-원산도해역 단일채널 탄성파자료 정밀처리 및 기반암 분포분석", 2009 Korea-Japan joint symposium on rock engineering, pp.379~383 (2009), Korean Society for Rock Mechnics
- Lee, H. Y., "Suppression of swell effect in 3.5㎑ subbottom profiler data", The Sea: J. of the Korean Society of Oceanography, 7(3), pp.95~99 (2002)
- Miao, X., "Enhancing Seismic Insight by Spectral Decomposition", 77th Annual International Meeting, pp.1437~1441 (2007)
- Michum, R. M., "Seismic stratigraphy and global changes of sea level, part 6 : Seismic stratigraphic interpretation procedure. Seismic Stratigraphy - Application to Hydrocarbon Exploration", A.A.P.G. Mem, 26, pp.117~133 (1977)
- Nelson, A.R., "Spectral decomposition allied to time-lapse sesmic interpretation at Rulison field, Garfield county, Colorado", 석사, pp.2008
- Robertson, J.D., "Complex seismic trace analysis of thin beds", Geophysics, 49(4), pp.344~352 (1984)
- Shin, S. R., "Seismic amplitude and frequency characterristics of gas hydrate bearing geologic model", Mulli-Tamsa, 11(2), pp.116~126 (2008)
- Sinha, S., "Spectral decomposition of seismic data with continuouswavelet transform", Geophysics, 70(6), pp.19~25 (2005)
- Tanner, M. T., "Complex seimic trace analysis", Geophysics, 44(6), pp.1041~1063 (1978)
- Tanner, M.T., "Application of amplitude, frequency, and other attributes to stratigraphic and hydrocarbon exploration. Seismic Stratigraphy-Application to Hydrocarbon Exploration", A.A.P.G. Mem, 26, pp.301~327 (1977)
- Tian, F., "Generalized S transform and its applications for analysis seismic thin beds", 72nd Annual International Meeting, pp.2217~2220 (2002)
- Vail, P. R., "Seismic Stratigraphy Interpretation Using Sequence Stratigraphy : Part Ⅰ : seismic stratigraphy interpretation procedure", A.A.P.G. Studies in geology, 27(1), pp.1~10 (1987)
- Wankui, G., "Successful application of spectral decomposition technique to map deep gas reservoirs", 76th Annual International Meeting, pp.491~493 (2006)
- Yang, D.W., "A study on detection of gas reservoirs by AVO and complex analysis", J. of the Korean Society of Mineral and Energy Resources Engineers, 33, pp.340~348 (1996)
- Yeo, E.M., "Seismic characteristics of gas hydrate in deep sea using modeling technique", 석사, pp.2006