90°相移技术在岩性解释中的应用
|
摘要
本文在简要介绍利用90°相位数据进行地震解释的原理基础上,通过理论合成数据证明了其识别薄层的可行性,并阐明90°相移技术实现过程。在实际地震资料应用中,可利用Wiener-Levinson混相位提取法估算地震数据子波相位,并利用相位转换法将混相位的地震数据转换成零相位,再转换成90°常相位,据此提出了利用90°相位剖面解释岩性地层的思路。通过实际资料的应用,证实了90°相位剖面在岩性解释中识别薄层的优势。
This paper briefly describes the principle of 90° phase data interpretation.Through the synthetic data we success to identify seismically thin beds in lithologic interpretation of 90° phase data,and describe the implementing procedure of 90° phase shift method.For real seismic data,we use the Wiener-Levinson mixed phase extraction method to estimate the seismic wavelet phase and use the phase shift method to convert the mixed phase to zero phase,and then convert to 90° phase.Finally we propose an idea to interpret thin beds by application of 90° phase data.Throughr the practical applications,we can confirm the advantage of 90° phase data in thin-bed interpretation.
This paper briefly describes the principle of 90° phase data interpretation.Through the synthetic data we success to identify seismically thin beds in lithologic interpretation of 90° phase data,and describe the implementing procedure of 90° phase shift method.For real seismic data,we use the Wiener-Levinson mixed phase extraction method to estimate the seismic wavelet phase and use the phase shift method to convert the mixed phase to zero phase,and then convert to 90° phase.Finally we propose an idea to interpret thin beds by application of 90° phase data.Throughr the practical applications,we can confirm the advantage of 90° phase data in thin-bed interpretation.
引文
[1]李庆忠.走向精确勘探的道路——高分辨率地震勘探系统工程剖析.北京:石油工业出版社,1993
[2]Zeng Hongliu,Backus M M.Interpretive advantages of90°phase wavelets,Part 1:Modeling.Geophysics,2005,70(3):C7～C15
[3]Zeng Hongliu,Backus M M.Interpretive advantages of90°phase wavelets,Part 2:Seismic applications.Geo-physics,2005,70(3):C17～C24
[4]陆基孟.地震勘探原理.山东东营:石油大学出版社,1993
[5]郭向宇,周兴元等.混合相位子波的相位估算及校正.石油地球物理勘探,1998,33(2):212～214Guo Xiangyu,Zhou Xingyuan et al.Estimation andcorrection of mixed-phase wavelet phase.OGP,1998,33(2):212～214
[6]孙成禹.空变地震子波提取方法研究.石油大学学报(自然科学版),2000,24(1):77～84Sun Chengyu.Study on the extraction of spatial variedseismic wavelets.Journal of China University of Pe-troleum(Edition of Natual Science),2000,24(1):77～84
[7]张立昌等.道积分剖面薄互层特征解释及三维地质物性参数体模拟.石油地球物理勘探,1993,28(3):301～313Zhang Lichang et al.Interpretation of thin interbeds intrace integration section and modeling of three dimen-sional petrophysical parameter volume.OGP,1993,28(3):301～313
[2]Zeng Hongliu,Backus M M.Interpretive advantages of90°phase wavelets,Part 1:Modeling.Geophysics,2005,70(3):C7～C15
[3]Zeng Hongliu,Backus M M.Interpretive advantages of90°phase wavelets,Part 2:Seismic applications.Geo-physics,2005,70(3):C17～C24
[4]陆基孟.地震勘探原理.山东东营:石油大学出版社,1993
[5]郭向宇,周兴元等.混合相位子波的相位估算及校正.石油地球物理勘探,1998,33(2):212～214Guo Xiangyu,Zhou Xingyuan et al.Estimation andcorrection of mixed-phase wavelet phase.OGP,1998,33(2):212～214
[6]孙成禹.空变地震子波提取方法研究.石油大学学报(自然科学版),2000,24(1):77～84Sun Chengyu.Study on the extraction of spatial variedseismic wavelets.Journal of China University of Pe-troleum(Edition of Natual Science),2000,24(1):77～84
[7]张立昌等.道积分剖面薄互层特征解释及三维地质物性参数体模拟.石油地球物理勘探,1993,28(3):301～313Zhang Lichang et al.Interpretation of thin interbeds intrace integration section and modeling of three dimen-sional petrophysical parameter volume.OGP,1993,28(3):301～313
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心