| 摘要: |
| 介绍利用3分優垂良地震剖面(VSP)资料中的纵波初至求取地层品质因子值的原理及方法、稳定化的反 滤波方法，以及实现联合VSP地饞资料进行反滤波提高分辨率处理的技术流程。利用三分量VSP资料估算的弹 性参数可以与地层的Q值进行对比分析，证实估算的地层Q值的准确性。实际VSP资料和过井的地面地霞资料的 应用研究结果表明，所提方法与技术流程是咐行的,能够在不影响地震资料信噪比的情况下提卨地面地震资料的分 辨率。与VSP走廊叠加结果对比结果表明,提高分辨率后的地巌资料号VSP结果具有很好的一致性。 |
| 关键词: 垂直地溪剖面(VSP) 反滤波；品质因子(Q) 分辨率；下行波 |
| DOI：10.3969/j.issn.1673-5005.2012.03.010 |
| 分类号:P315.9 |
| 基金项目:国家H然科学基金项目(41074080) 5国家科技审大专项课题(2011ZX05019-008) |
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| Application of improving surface seismic resolution using vertical-seismic-profile data |
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CHEN Shuang-quan1,2,LI Xiang-yang1,2
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(1.State Key Lahoratory of Petroleum Resource and Prospecting in China University of Petroleum，Beijing 102249, China;2. CNPC Key Laboratory of Geophysical Prospecting in China University of Petroleum, Beijing 102249, China)
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| Abstract: |
| The theory and method of quality factor (Q) estimation using P-wave first break in three-component verlical-seis-mic-profile (VSP) seismic data, stabilized inverse (^-filtering method were given and a processing flow for improving surface seismic data resolution combined with VSP seismic data was proposed. The elastic parameteis can be derived from three-component VSP seismic dataset 1 such as velocity ratio of P-and S-wave, Poisson's ratio and volume modulus. These parameters can be used to correct the Q model estimated from VSP seismic data. The results of real field VSP seismic data and seismic data across the well show that the methods and technique process are feasible. It can enhance the seismic resolution without effects on the seismic signal-to-noise ratio. Compared with the stacked VSP seismic trace to the seismic sections before and after inverse Q filtering, the seismic data with high resolution agrees well with the VSP results. |
| Key words: vertical-seismic-profile ( VSP) inverse (^-filtering quality factor(Q) resolution down-going wave |
