频率域属性含气性检测技术研究及应用
A Study and Application of Gas Potential Detection Technology Based on Frequency Attributes
DOI: 10.12677/AG.2024.142014, PDF,   
作者: 曾婷婷：中国石化勘探分公司，四川 成都；郑公营, 许 多：中国石化西南油气分公司勘探开发研究院，四川 成都
关键词: 频率域属性；衰减梯度；频变AVO；频变地震反射系数；低频伴影；Frequency Attributes； Attenuation Gradient； Frequency-Variant AVO； Frequency-Variant Seismic Reflection Coefficient； Low-Frequency Shadows
摘要: 地震波散射能量的研究表明：如果岩石中含有油气，将会导致地震波的速度频散或者传播能量的衰减，这些不规则的衰减或频散对烃类指示非常有用。除了孔隙介质速度频散和衰减，还伴生了两种现象：反射系数变化和低频伴影，利用这两种现象进行含气性检测为近年来的新方法。介绍了四种频率域含气性检测方法，并在不同地区及层系开展了方法应用，结果显示各方法的预测结果与已钻井或沉积相带吻合较好。
Abstract: The research of seismic wave scattering energy shows that: If the rock contains oil and gas, this will lead to the velocity dispersion or energy attenuation of seismic wave propagating in the rock. The irregular attenuation or velocity dispersion is very useful for hydrocarbon indicators. In addition to the velocity dispersion and attenuation of the porous media, two phenomena are also associated: the change of reflection coefficient and low-frequency shadows, and using these two phenomena to detect gas content is a new method in recent years. Four kinds of frequency-domain gas detection methods are introduced, and they are well applied in different blocks and layers. The results show that the prediction results of each method are in good agreement with the drilling or sedimentary facies.
文章引用：曾婷婷, 郑公营, 许多. 频率域属性含气性检测技术研究及应用[J]. 地球科学前沿, 2024, 14(2): 143-156. https://doi.org/10.12677/AG.2024.142014

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