层析静校正技术在诺木洪北地区的应用
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摘要
在地震勘探中,地形的起伏、低降速带厚度和速度的变化造成反射波旅行时的畸变,严重影响了地震资料的处理质量。本文以层析静校正的基本理论和适用条件为基础,通过实际资料的应用,证明基于单炮初至时间的层析静校正方法能很好地解决复杂地表区由于地形和低降速带变化引起的长波长静校正问题。
The processing quality of the seismic data can be seriously affected by the distortion of the reflection travel resulted from the changes in the geomorphic fluctuation, low weathering thickness and velocity. Based on the theory and applicable conditions of the tomographic static correction, it has been proved by the application of the real data that the tomographic static correction based on the first arrival time of single shot can solve the long wavelength static correction resulted from the changes in the geomorphic fluctuation, low weathering thickness and velocity in complex surface.
The processing quality of the seismic data can be seriously affected by the distortion of the reflection travel resulted from the changes in the geomorphic fluctuation, low weathering thickness and velocity. Based on the theory and applicable conditions of the tomographic static correction, it has been proved by the application of the real data that the tomographic static correction based on the first arrival time of single shot can solve the long wavelength static correction resulted from the changes in the geomorphic fluctuation, low weathering thickness and velocity in complex surface.
引文
[1]陆基孟.地震勘探原理[M].山东东营:石油大学出版社,1993,10.
[2]李录明,罗省贤,赵波.初至波表层模型层析反演[J].石油地球物理勘探,2000,35(5):559-564.
[3]黄鑫等.层析静校正在复杂地表地震资料处理中的应用[J].内蒙古石油化工,2008,18(15):140-142.
[4]冯世民.层析静校正在三维地震资料再处理中的应用及效果[J].地球物理学进展,2012,27(3):20-57.
[5]刘清林,李文龙,李成猛.利用折射层析成像技术研究塔里木盆地浅部速度分布[J].长春科技大学学报,1998,28(1):85-88.
[2]李录明,罗省贤,赵波.初至波表层模型层析反演[J].石油地球物理勘探,2000,35(5):559-564.
[3]黄鑫等.层析静校正在复杂地表地震资料处理中的应用[J].内蒙古石油化工,2008,18(15):140-142.
[4]冯世民.层析静校正在三维地震资料再处理中的应用及效果[J].地球物理学进展,2012,27(3):20-57.
[5]刘清林,李文龙,李成猛.利用折射层析成像技术研究塔里木盆地浅部速度分布[J].长春科技大学学报,1998,28(1):85-88.
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