Quantitative analysis of the complexity in seismic exploration of the high and steep structures in Kuqa depression
文献类型：期刊论文
| 作者 | Dong Wen1; Fu Li-Yun2; Xia You-Jun3; Guan Xi-Zhu2; Wu Chao3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 54期号:6页码:1600-1613 |
| 关键词 | Complex Structures In Kuqa Depression Slowness And Dipping-angle Heterogeneity Spectra Migrator's Angular Spectra Imaging Efficiency And Complexity Coefficient |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.06.020 |
| 文献子类 | Article |
| 英文摘要 | How a wave interacts with heterogeneous media has been pursued by many geophysicists. Based on seismic imaging operators, we conduct a quantitative assessment of the complexity of salt-related overthrust complex structures in Kuqa depression. We first use seismic data to compute the slowness spectrum and the dipping-angle spectrum for the Dabei, Bozi, Quele, Xiqiu 10, and Xiqiu 4 structures, respectively. These heterogeneity spectra express the geological complexity of subsurface structures as a spectrum to quantify lateral velocity variations and dipping-angle distributions. Through an interaction between the geological heterogeneity spectra and the migrator's angular spectra, we obtain imaging efficiencies and complexity coefficients for these complex structures in Kuqa depression, which quantitatively evaluate the geological complexity in terms of migrators. The results indicate that the Quele-Xiqiu structure zone is more complex than the Dabei-Bozi structure zone. Along Quele through Xiqiu 10 to Xiqiu 4, the complexity coefficient gradually increases because of stronger velocity contrasts, broader heterogeneity spectra, richer off-peak spectral contents in the slowness and dipping-angle spectra. These conclude that time migrations for complex Kuqa structures are prone to cause wrong imaging and migration noise. Depth migrations should be enhanced for Kuqa depression. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000292366900020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73880]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Dong Wen |
| 作者单位 | 1.China W Normal Univ, Comp Sch, Nanchong 637002, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.PetroChina Co Ltd, Tarim Oilfield Co, Korla 841000, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong Wen,Fu Li-Yun,Xia You-Jun,et al. Quantitative analysis of the complexity in seismic exploration of the high and steep structures in Kuqa depression[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(6):1600-1613. |
| APA | Dong Wen,Fu Li-Yun,Xia You-Jun,Guan Xi-Zhu,&Wu Chao.(2011).Quantitative analysis of the complexity in seismic exploration of the high and steep structures in Kuqa depression.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(6),1600-1613. |
| MLA | Dong Wen,et al."Quantitative analysis of the complexity in seismic exploration of the high and steep structures in Kuqa depression".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.6(2011):1600-1613. |
入库方式： OAI收割
来源：地质与地球物理研究所
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