| 一种新的地震波衰减分析方法——预测油气异常的有效工具 |
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| 引用本文： | 黄中玉,苏永昌.一种新的地震波衰减分析方法——预测油气异常的有效工具[J].石油地球物理勘探,2000,35(6):768-773. |
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| 作者姓名： | 黄中玉 苏永昌 |
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| 作者单位： | 中国新星石油公司南京石油物探研究所(黄中玉，王于静)，北京龙油永昌石油科技发展有限公司(苏永昌) |
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| 摘 要： | 地震波衰减与砂岩含油气存在一定的关系，当地震波穿过含油气砂岩时，能量发生明显的高频衰减。本文应用了地震信号能量衰减ＥＡＡ（Ｅｎｅｒｇｙ Ａｂｓｏｒｐｔｉｏｎ Ａｎａｌｙｓｉｓ）技术，连续计算、分析地震波剖面的高频衰减系数，并考虑到介质背景衰减的平缓变化，衰减剖面中的异常变化值与地层含油气有关。在ＳＮ油田ＳＳＫ－１测线过井的地震纵波衰减剖面上，长２组表现出产油气层与地震波能量衰减强的部位相吻合。在测
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| 关 键 词： | 地震波衰减分析 油气异常 预测 地震资料 |
A new analysis method for seismic wave attenuation:effective tool for predicting hydrocarbon anomaly. |
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| Huang Zhongyu,Wang Yujing and Su Yongchang..A new analysis method for seismic wave attenuation:effective tool for predicting hydrocarbon anomaly.[J].Oil Geophysical Prospecting,2000,35(6):768-773. |
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| Authors: | Huang Zhongyu Wang Yujing and Su Yongchang |
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| Abstract: | There are certain relations between seismic wave attenuation and oil bearing sand,and energy may produce significant attenuation at high frequency when seismic wave passed through the oil bearing sand.The paper applied the seismic signal energy attenuation technique EAA (Energy Absorption Analysis) and continuously analyzed and calculated attenuation factor at high frequency in seismic profiles.Considering smooth variation of medium background attenuation,the anomalous varying values in attenuation profiles may be associated with oil bearing formation. The oil bearing formation in Chang 2 Formation coincides with the position which seismic wave energy has significant attenuation in seismic P wave attenuation profile SSK 1 passing well of SN oilfield The other oil gas anomaly area at the eastern prospective parts of the line were predicted. |
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| Keywords: | seismic wave attenuation oil gas anomaly prediction |
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