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| 零偏移距VSP资料层Q反演及其应用研究(英文) | |
| 引用本文： | 张固澜,;王熙明,;贺振华,;曹俊兴,;李可恩,;容娇君.零偏移距VSP资料层Q反演及其应用研究(英文)[J].应用地球物理,2014,11(2):235-244. |
| 作者姓名： | 张固澜 ;王熙明 ;贺振华 ;曹俊兴 ;李可恩 ;容娇君 |
| 作者单位： | [1]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059; [2]中国石油集团东方地球物理公司新兴物探开发处,河北涿州072751; [3]湖南华晟能源投资发展有限公司,湖南长沙410000 |
| 基金项目： | sponsored by the National Nature Science Foundation of China（Nos.41174114 and 41274128） |
| 摘 要： | 地层品质因子Q的可用于地震资料高分辨率处理,而从VSP资料下行直达波更容易获取准确的地层品质因子。通过对零偏移距VSP资料的监控子波和下行初至波的频谱进行综合分析,仿照Ricker子波频谱的表达式,本文提出了震源子波频谱新的表达式。在震源子波频谱新的表达式基础上,我们介绍了改进的频谱拟合法和改进的谱比法的层Q值反演方法及相应的处理流程。基于本文提出的层Q值反演方法,利用实际的零偏移距VSP资料的下行直达波,反演稳定的层Q值,并用于零偏移距VSP资料及井旁地面地震资料的反Q滤波振幅补偿处理,提高了地震资料的分辨率。 |
| 关 键 词： | 零偏移距VSP 频谱拟合 谱比法 层Q反演 反Q滤波 |
Interval Q inversion based on zero-offset VSP data and applications |
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| Gu-Lan Zhang,Xi-Ming Wang,Zhen-Hua He,Jun-Xing Cao,Ke-En Li,Jiao-Jun Rong.Interval Q inversion based on zero-offset VSP data and applications[J].Applied Geophysics,2014,11(2):235-244. | |
| Authors: | Gu-Lan Zhang Xi-Ming Wang Zhen-Hua He Jun-Xing Cao Ke-En Li Jiao-Jun Rong |
| Institution: | 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, 610059, China 2. BGP, CNPC, Zhuozhou, 072751, China 3. Hunan Huasheng Energy Investment and Development Co. Ltd., Changsha, 410000, China |
| Abstract: | In order to obtain stable interval Q factor, by analyzing the spectrum of monitoring wavelet and down-going wavelet of zero-offset VSP data and referring the spectrum expression of Ricker wavelet, we propose a new expression of source wavelet spectrum. Basing on the new expression, we present improved amplitude spectral fitting and spectral ratio methods for interval Q inversion based on zero-offset VSP data, and the sequence for processing the zero-offset VSP data. Subsequently, we apply the proposed methods to real zero-offset VSP data, and carry out prestack inverse Q filtering to zero-offset VSP data and surface seismic data for amplitude compensation with the estimated Q value. |
| Keywords: | interval Q inversion zero-offset VSP improved method amplitude spectral fitting spectral ratio inverse Q filtering |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ | |