相干数据分析技术的应用及效果
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摘要
应用常规三维地震资料解决复杂的地质问题具有明显的优越性 ,但却难以得到隐藏在三维地震数据体中的断层和特殊地质体清晰无偏差的图象 ,而利用相干数据体检测方法则可有效地解决这一问题。相干数据分析是通对地震道间波形的相似性的计算 ,实现三维振幅数据体向三维相似系数数据体的转换。该文描述了相干数据体计算法 ,以及断层和特殊地质体在相干数据体上的准确成像 ,展示了相干属性体的良好应用前景。
Application of conventional 3D seismic data to solve complex geologic problem has obvious advantage, but it is difficult to obtain clear and exact images of fault and special geologic body that are hidden in the 3D seismic data bodies. A detection method of using coherent data can solve this problem effectively. Coherent data analysis may convert the original cube with 3D amplitude seismic data to other cube with 3D similar coefficient data by calculating the similarity of waveform among seismic traces. In this paper the computation method of coherent data cube and the exact image of fault and special geologic body in data cube are described. It shows a good prospect of application of the coherent attribute body.
Application of conventional 3D seismic data to solve complex geologic problem has obvious advantage, but it is difficult to obtain clear and exact images of fault and special geologic body that are hidden in the 3D seismic data bodies. A detection method of using coherent data can solve this problem effectively. Coherent data analysis may convert the original cube with 3D amplitude seismic data to other cube with 3D similar coefficient data by calculating the similarity of waveform among seismic traces. In this paper the computation method of coherent data cube and the exact image of fault and special geologic body in data cube are described. It shows a good prospect of application of the coherent attribute body.
引文
1 BahorichM ,FarmerS .3-Dseismicdiscontinuityforfaultsandstratigraphicfeatures—Thecoherencecube.TheLeadingEdge,1995,14(10):1053～1058
2 孙跃华.相干数据体.国外油气勘探.1996,8(3):1001～5825
3 程乾生.信号数字处理的数学原理.北京:石油工业出版社,1993:290～337
2 孙跃华.相干数据体.国外油气勘探.1996,8(3):1001～5825
3 程乾生.信号数字处理的数学原理.北京:石油工业出版社,1993:290～337
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