| 河道砂体宽/窄方位三维观测系统地震物理模型分析 |
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| 引用本文： | 狄帮让,徐秀仓,魏建新.河道砂体宽/窄方位三维观测系统地震物理模型分析[J].应用地球物理,2008,5(4):294-300. |
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| 作者姓名： | 狄帮让 徐秀仓 魏建新 |
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| 作者单位： | [1]State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, （Beijing）, Beijing, 102249, China [2]CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum （Beijing）, Beijing, 102249, China |
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| 基金项目： | This research is supported by the National Basic Research Program （the 973 Program, No. 2007CB209601）. |
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| 摘 要： | The effect of the wide and narrow azimuth 3D observation systems on seismic imaging precision is becoming a hot area for studies of high precision 3D seismic acquisition methods in recent years. In this paper we utilize 3D physical seismic modeling experiments. A 3D channel sand body physical seismic model is constructed and two acquisition systems are designed with wide azimuth （16 lines） and narrow azimuth （8 lines） to model 3D seismic data acquisition and processing seismic work flows. From analysis of migrated time slice data with high quality and small size, we conclude that when the overlying layers are smooth and lateral velocities have little change, both wide and narrow azimuth observation systems in 3D acquisition can be used for obtaining high precision imaging and equivalent resolution of the channel sand body.
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| 关 键 词： | 地震 三维系统 成像 模型 |
A seismic modeling analysis of wide and narrow 3D observation systems for channel sand bodies |
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| Bangrang Di,Xiucang Xu,Jianxin Wei.A seismic modeling analysis of wide and narrow 3D observation systems for channel sand bodies[J].Applied Geophysics,2008,5(4):294-300. |
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| Authors: | Bangrang Di Xiucang Xu Jianxin Wei |
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| Institution: | (1) State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, (Beijing), Beijing, 102249, China;(2) CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum (Beijing), Beijing, 102249, China |
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| Abstract: | The effect of the wide and narrow azimuth 3D observation systems on seismic imaging precision is becoming a hot area for studies of high precision 3D seismic acquisition methods in recent years. In this paper we utilize 3D physical seismic modeling experiments. A 3D channel sand body physical seismic model is constructed and two acquisition systems are designed with wide azimuth (16 lines) and narrow azimuth (8 lines) to model 3D seismic data acquisition and processing seismic work flows. From analysis of migrated time slice data with high quality and small size, we conclude that when the overlying layers are smooth and lateral velocities have little change, both wide and narrow azimuth observation systems in 3D acquisition can be used for obtaining high precision imaging and equivalent resolution of the channel sand body. |
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| Keywords: | Wide and narrow azimuth observation systems seismic imaging physical seismic modeling time slice resolution |
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