Using Chebyshev polynomial asymmetric calculation to obtain angle domain common imaging gathers by Kirchhoff pre-stack time migration
文献类型：期刊论文
| 作者 | Liu Zhi-Yuan1,3; Chang Xu1; Liu Yi-Ke1; Wang Yi-Bo1; Du Xiang-Dong2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2013-08-01 |
| 卷号 | 56期号:8页码:2783-2789 |
| 关键词 | Kirchhoff pre-stack time migration Chebyshev polynomial Bend-ray Asymmetric travel time formula Angle domain common image gathers |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20130826 |
| 文献子类 | Article |
| 英文摘要 | Kirchhoff pre-stack time migration (KPSTM) is widely used in production due to its high efficiency and good suitability, especially for exploration in central and western China. Angle domain common image gathers (ADCIG) serve as the link between migration and reservoir attribute analysis. Getting ADCIG in the time domain is more efficient than in the depth domain. Seismic travel time calculation is one of the key problems of KPSTM and is also a key problem in ADCIG calculation. Using Chebyshev orthogonal polynomial and optimizing algorithm, we develop a new asymmetric Chebyshev travel time formula and compare it with high-precision taylor travel time formulas. Based on this, considering the bend-way effect, we apply the new Chebyshev travel time formula to calculate incident angles, and achieve more precise ADCIG from the original seismic gathers. The method is tested by both synthetic data and real marine data. It is verified that using our method to obtain ADCIG is more precise and consumes less computation time. |
| WOS关键词 | VELOCITY ANALYSIS ; DEPTH MIGRATION ; MEDIA ; EQUATION ; MOVEOUT ; OFFSET |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000323854200026 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/87798]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu Zhi-Yuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Engn Geomech, Beijing 100029, Peoples R China 2.China Natl Offshore Oil Corp, Sci & Technol Dev Dept, Beijing 100027, Peoples R China 3.SINOPEC Explorat & Prod Res Inst, Geophys Res Ctr, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Zhi-Yuan,Chang Xu,Liu Yi-Ke,et al. Using Chebyshev polynomial asymmetric calculation to obtain angle domain common imaging gathers by Kirchhoff pre-stack time migration[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2013,56(8):2783-2789. |
| APA | Liu Zhi-Yuan,Chang Xu,Liu Yi-Ke,Wang Yi-Bo,&Du Xiang-Dong.(2013).Using Chebyshev polynomial asymmetric calculation to obtain angle domain common imaging gathers by Kirchhoff pre-stack time migration.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,56(8),2783-2789. |
| MLA | Liu Zhi-Yuan,et al."Using Chebyshev polynomial asymmetric calculation to obtain angle domain common imaging gathers by Kirchhoff pre-stack time migration".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 56.8(2013):2783-2789. |
入库方式： OAI收割
来源：地质与地球物理研究所
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