Relative amplitude preserved P-P and P-SV wave seismic sections
文献类型：期刊论文
| 作者 | Zhao, S; Wang, YH |
| 刊名 | JOURNAL OF GEOPHYSICS AND ENGINEERING
 |
| 出版日期 | 2004-12-01 |
| 卷号 | 1期号:4页码:259-262 |
| 关键词 | spherical divergence attenuation amplitude preserving divergence correction earth Q model inverse Q filter converted wave seismic |
| ISSN号 | 1742-2132 |
| DOI | 10.1088/1742-2132/1/4/003 |
| 文献子类 | Article |
| 英文摘要 | In seismic wave propagation, the amplitude decay along travel time comprises two components: the spherical divergence and the earth absorption effect in an inhomogeneous medium. In reservoir geophysics, both the P-P and P-SV wave seismic sections are required to be relative-amplitude preserved so that they can be used for comparative interpretation and analysis. Therefore, each of the following two processing steps, divergence correction and inverse Q filtering, applied to both seismic sections should be relative-amplitude preserved. In this paper, the spherical divergence corrections on the P-P and P-SV wave sections are expressed in unified formulae in which the formula for the P-SV wave section differs from that for the P-P wave section by a factor (1+gamma)(-1), where gamma is the ratio of P- to S-wave velocities, applicable to both the scale and power coefficients simultaneously. Divergence-corrected seismic sections are then used to estimate the earth Q models, which in turn are used to design inverse Q filters. Only when divergence correction and inverse Q filtering, both of which are amplitude-related processing, applied to the P- P and P-SV wave sections are adequately accurate, the amplitude information contained in these seismic sections can be reliably used for lithological analysis in reservoir geophysics. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000228577000003 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79511]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao, S |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Sinopec, Dept Sci & Technol, Beijing 100029, Peoples R China 3.Univ London Imperial Coll Sci Technol & Med, Ctr Reservoir Geophys, Dept Earth Sci & Engn, London SW7 2AZ, England |
| 推荐引用方式 GB/T 7714 | Zhao, S,Wang, YH. Relative amplitude preserved P-P and P-SV wave seismic sections[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2004,1(4):259-262. |
| APA | Zhao, S,&Wang, YH.(2004).Relative amplitude preserved P-P and P-SV wave seismic sections.JOURNAL OF GEOPHYSICS AND ENGINEERING,1(4),259-262. |
| MLA | Zhao, S,et al."Relative amplitude preserved P-P and P-SV wave seismic sections".JOURNAL OF GEOPHYSICS AND ENGINEERING 1.4(2004):259-262. |
入库方式： OAI收割
来源：地质与地球物理研究所
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