The Application of No-well Impedance Inversion in Xisha Area Hydrate Research
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摘要: 为了更好地研究水合物的展布形态和赋存情况,对西沙海域天然气水合物的准三维地震资料进行无井波阻抗反演。详细论证针对水合物无井波阻抗反演的处理方法:根据水合物的地球物理特征对地震资料进行零相位化处理;根据地震资料本身特征,在工区多个构造稳定区提取地震子波,对求取的子波平均化保证子波的稳定性;根据叠加速度,通过网格插值、平滑、滤波、转换求取三维低频阻抗模型。最终得到的反演结果地质现象清楚,能够较准确地反映水合物的空间展布情况,利于后续水合物的综合分析研究。Abstract: In order to research the distribution form of hydrate and occurrence of gas hydrate in Xisha area of quasi three dimensional wave impedance inversion of seismic data. Demonstrates the processing in detail about no Wells impedance inversion: According to the geophysical characteristics of hydrate do zero phase of seismic data processing; According to the characters of seismic data itself, in the work area of multiple tectonic region extraction of seismic wavelet, to ensure the stability of the wavelet to calculate the average wavelet; According to the stacking velocity, by smoothing, filtering, conversion and interpolation to calculate the 3D low frequency model. Finally got the inversion result of clear geological phenomenon, and can be accurate image the distributed area of the hydrate, favor to the comprehensive analysis of the subsequent hydrate research.
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Keywords:
- hydrate /
- impedance inversion /
- zero phase data processing /
- low-frequency
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期刊类型引用(1)
1. 孟大江，文鹏飞，张旭东. AVO反演在琼东南海域天然气水合物识别中的应用. 海洋地质前沿. 2018(07): 46-55 . 
百度学术
其他类型引用(1)
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