| 起伏高速层近地表对下伏地层成像的影响 |
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| 引用本文： | 张国芳.起伏高速层近地表对下伏地层成像的影响[J].江汉石油职工大学学报,2010,23(6):16-19. |
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| 作者姓名： | 张国芳 |
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| 作者单位： | 江汉石油管理局地球物理勘探公司物探研究中心,湖北潜江433100 |
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| 摘 要： | 在潜北三维中由于高速层与上伏第四系地层形成强波波阻抗界面,反射系数大,形成强反射界面,地震波难以透射下去达到勘探所要求达到的目的层,所以高速层会对下传的地震波的能量产生一定的屏蔽作用。而且透射不下去的那部分能量会产生各种干扰波,使得折射波及多次反射波的能量特别强。
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| 关 键 词： | 起伏高速层 下伏地层 模型正演潜北地区 |
On Impact of Rough High-speed Layer near Surface on Imaging of Underlying Strata |
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| ZHANG Guo-fang.On Impact of Rough High-speed Layer near Surface on Imaging of Underlying Strata[J].Journal of Jianghan Petroleum University of Staff and Workers,2010,23(6):16-19. |
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| Authors: | ZHANG Guo-fang |
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| Affiliation: | ZHANG Guo-fang(Research Center for Geophysical Prospecting of Geophysical Exploration Company of JHPA,SINOPEC,Qianjiang,Hubei,433100,China) |
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| Abstract: | Because of a strong wave impedance interface between high-speed layer and upper Quaternary strata in 3D north of Qianjiang that results in a large reflection coefficient,bright reflecting interface which makes difficult for seismic waves to transmit downward to desired target,high-speed layer will shield some of downward energy generated by them.In this case,that part of energy that doesn＇t pass downward may generate various disturbing waves which make refractions and multiple reflections very strong. |
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| Keywords: | Rough High-speed Layer Underlying Strata Forward Modeling North Part of Qianjiang |
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