| 一种优化吸收边界条件 |
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| 引用本文： | 缪林昌. 一种优化吸收边界条件[J]. 石油物探, 1994, 33(2): 53-57 |
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| 作者姓名： | 缪林昌 |
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| 作者单位： | 地矿部石油物探研究所!南京210014 |
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| 摘 要： | 利用Ｆｏｕｒｉｅｒ变换法和Ｈａｒｔｌｅｙ变换法进行正演模拟在求解法场时，必须选用合适的边界条件，以克服Ｆｏｕｒｉｅｒ变换和Ｈａｒｔｌｅｙ变换数值解法中产手的周期折叠效应和边界反射问题。对于井间观测的正演模拟若用变换法实现，其周期折叠效应和边界反射特别严重，本文针对这一问题提一种优化吸收边界条件。该边界条件与现行的边界条件相比具有效果好、计算效率高的特点。
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| 关 键 词： | 边界反射 地震勘探 油气藏 |
| 收稿时间： | 1993-09-01 |
An optimized absorption boundary condition |
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| Miao Linchang. An optimized absorption boundary condition[J]. Geophysical Prospecting For Petroleum, 1994, 33(2): 53-57 |
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| Authors: | Miao Linchang |
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| Affiliation: | Rescarch Institute of Gcophysical Prospecting for Petrolcum, MGMR, Nanjing City, Internal Postcodc: 210014 |
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| Abstract: | Wave-field modeling by means of Fourier and Hartley transforms calls for appropriate boundary conditions in order to reduce periodic folding effects and boundary renections generated in the course of applying these transforms for numerical solutions, which proved especially severe in cross-hole observations using the transforms. In this paper, we put forward an optimized absorption boundary condition specifically designed for solving the above-mentioned problems.Practice shows that such boundary condition does work well in suppressing those artifacts as expected, the corresponding computational efficiency is significantly improved as well. |
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| Keywords: | Fourier Transform Hartley Transform Periodic Folding Effect Boundary Reflection Cross-hole Survey |
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