| 利用物理模型三维纵波数据分析HTI介质的方位各向异性 |
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| 引用本文： | 尹志恒,李向阳,魏建新,狄帮让,张四海,吴满生.利用物理模型三维纵波数据分析HTI介质的方位各向异性[J].地球物理学报,2012,55(11):3805-3812. |
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| 作者姓名： | 尹志恒 李向阳 魏建新 狄帮让 张四海 吴满生 |
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| 作者单位： | 1. 中国石油大学(北京)CNPC物探重点实验室,北京 102249;2. 中国石油化工集团国际石油工程有限公司,北京 100029 |
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| 摘 要： | 本文通过理论计算、数值模拟与穹窿物理模型三维数据对比分析的方法,对HTI介质中纵波方位各向异性现象进行研究.主要是进行目的层动校正速度以及走时的分析.结果显示,理论数值与实验数值耦合较好,HTI介质会引起动校正速度以及走时随方位角呈现椭圆形的变化;同时发现,观测系统中最大偏移距与目的层深度的比值以及方位角分布对各向异性分析有较大影响. 三维纵波方位各向异性分析对于数据的观测系统设计以及数据质量有较高的要求.
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| 关 键 词： | HTI介质 裂缝 各向异性 动校正速度 走时 |
| 收稿时间： | 2011-10-01 |
A physical modeling study on the 3D P-wave azimuthal anisotropy in HTI media |
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| YIN Zhi-Heng
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LI Xiang-Yang
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WEI Jian-Xin
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DI Bang-Rang
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ZHANG Si-Hai
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WU Man-Sheng.A physical modeling study on the 3D P-wave azimuthal anisotropy in HTI media[J].Chinese Journal of Geophysics,2012,55(11):3805-3812. |
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| Authors: | YIN Zhi-Heng LI Xiang-Yang WEI Jian-Xin DI Bang-Rang ZHANG Si-Hai WU Man-Sheng |
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| Institution: | 1. CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum (Beijing), Beijing 102249, China;2. Sinopec International Petroleum Service Corporation,Beijing 100029, China |
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| Abstract: | By the method of physical modeling combined with numerical simulation, the paper analyzes the P-wave azimuthal anisotropy phenomena in HTI media, focusing on the normal moveout velocity and travel time of target zone. The results show that theoretical values consist well with the experimental data, and HTI media can cause that Vnmo and travel time azimuthal change like an ellipse. Meanwhile, the ratio of maximum offset/depth and data azimuthal distribution are two geometry parameters having big impacts on azimuthal anisotropy analysis. The study needs reasonable geometry design and data with high quality. |
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| Keywords: | HTI media Fracture Anisotropy Normal Moveout Velocity Travel time |
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