| 黏弹性介质VSP记录模拟及在估算Q值研究中应用 |
| |
| 引用本文： | 赵海波, 陈百军, 李奎周, 成德安. 黏弹性介质VSP记录模拟及在估算Q值研究中应用[J]. 地球物理学报, 2011, 54(2): 329-335, doi: 10.3969/j.issn.0001-5733.2011.02.008 |
| |
| 作者姓名： | 赵海波 陈百军 李奎周 成德安 |
| |
| 作者单位： | 大庆油田有限责任公司勘探开发研究院,大庆 163712 |
| |
| 基金项目： | 国家重点基础研究发展计划(973)项目 |
| |
| 摘 要： | 采用标准线性固体模型,本文建立了黏弹性介质完全匹配层吸收边界的高阶速度-应力交错网格有限差分算法,并对黏弹性介质中的地震波传播进行了数值模拟.基于黏弹性波动方程正演模拟提供的零偏VSP全波场数据,本文进行了质心频移法计算Q值的反演分析.结果表明,反射波、转换波及短程多次波对频谱的影响较大,对Q值反演造成一定误差.本文的结论为实际零偏VSP资料估算地层Q值提供了有益的指导.
|
| 关 键 词： | 黏弹性介质 标准线性固体模型 数值模拟 零偏VSP Q值 |
| 收稿时间： | 2010-04-06 |
| 修稿时间： | 2010-05-28 |
VSP record numerical modeling in viscoelastic media and its application in the study of Q-value estimation method |
| |
| ZHAO Hai-Bo, CHEN Bai-Jun, LI Kui-Zhou, CHENG De-An. VSP record numerical modeling in viscoelastic media and its application in the study of Q-value estimation method[J]. Chinese Journal of Geophysics (in Chinese), 2011, 54(2): 329-335, doi: 10.3969/j.issn.0001-5733.2011.02.008 |
| |
| Authors: | ZHAO Hai-Bo CHEN Bai-Jun LI Kui-Zhou CHENG De-An |
| |
| Affiliation: | Exploration and Development Research Institute of Daqing Oilfield Company Ltd., Daqing 163712, China |
| |
| Abstract: | Using the standard linear solid model, a high-order velocity-stress staggered-grid finite-difference scheme with the perfectly matched layer method was proposed for simulating seismic wave propagation in viscoelastic media. With the full-wave field data of viscoelastic modeling of zero-offset VSP from several numerical experiments, the frequency shift method to calculate Q-value was analyzed. The numerical results showed that reflected waves, transformed waves and short-path multiples have relatively large influences on the frequency spectra of received data, and make further impacts on the Q-value inversion. The conclusions taken from the paper can provide helpful guidance for the estimation of subsurface interval Q-value with oilfield zero-offset VSP data. |
| |
| Keywords: | Viscoelastic medium Standard linear solid model Numerical modeling Zero-offset VSP Q-value |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
|
点击此处可从《地球物理学报》下载免费的PDF全文 |
|
