| 最佳差分算子在P-SV波正演模拟中的应用 |
| |
| 引用本文： | 周家纪,王铎,黄德济.最佳差分算子在P-SV波正演模拟中的应用[J].石油物探,1993,32(4):38-44. |
| |
| 作者姓名： | 周家纪 王铎 黄德济 |
| |
| 作者单位： | 哈尔滨工业大学博士后力学站 哈尔滨150000
(周家纪，王铎)，成都地质学院 成都610059(黄德济) |
| |
| 基金项目： | 国家自然科学基金委员会、中国科学院、中国石油天然气总公司和大庆石油管理局联合资助项目 |
| |
| 摘 要： | 本文提出用最佳差分技术模拟在二维非均匀介质中传播的Ｐ－ＳＶ波。只要这种方法的差分算子半长度取成４－６，每最短波长取３个空间网格点就可得到精度很高的弹性波正演模拟结果。用最佳差分算子模拟Ｐ－ＳＶ波的计算速度比用传统差分格式至少快一个数量级，比目前公认的速度较快的伪谱法还要快３－５倍。
|
| 关 键 词： | 最佳差分算子 P－SV波 地震波 |
OPTIMUM DIFFERENCE OPERATOR APPLIED TO P - SV WAVE FORWARD SIMULATION |
| |
| Zhou Jiaji,Wand Duo,Huand Deji.OPTIMUM DIFFERENCE OPERATOR APPLIED TO P - SV WAVE FORWARD SIMULATION[J].Geophysical Prospecting For Petroleum,1993,32(4):38-44. |
| |
| Authors: | Zhou Jiaji Wand Duo Huand Deji |
| |
| Affiliation: | 1. Post - doctor mechanics station, Harbin industrial university, Harbin 150000; |
| |
| Abstract: | This paper suggests that a P-SV wave traveling in a 2-D inhomogeneous medium could be simulated with an optimum difference operator when the halflength of the difference operator is taken to be 4 to 6 grid interval, three grid interval per shortest wavelength will do to yield high accuracy results for elastic wave's forward modeling. Velocity computation using optimum difference operator to simulate P-SV waves is at least one order of magnitude faster than using conventional finite difference schemes and 3 to 5 times as fast as the pseudospectral method which is currently accepted to be the fastest one. |
| |
| Keywords: | Optimum Difference Operator Finite Difference P-SV Wave |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《石油物探》浏览原始摘要信息 |
|
点击此处可从《石油物探》下载全文 |
