【摘要】 偏移概念的范畴已从最初作为构造成像工具演化为速度估算和地震属性分析的工具。本文阐述了偏移的基本概念、原理、实现方法并对其进行了分类和对比,分析了各种偏移方法各自的优势和不足,总结了地震偏移成像方法研究的现状和波动方程偏移成像最新进展。认为今后偏移的方向是发展和完善高分辨率和高保真度的偏移成像方法、高精度的速度估计、速度模型建立和可视化方法研究,矢量地震偏移成像方法、快速的偏移算法仍是研究的重点。更多还原

【Abstract】 The conception of seismic migration is becoming from structure imaging tool to velocity estimation and seismic attributes analysis tools. This article introduces the definition,principle, method about migration,and sorts and compares different ways,analyzes the advantages and disadvantages of different migrations,and presents the new developments of migration. The prospect of migration is to develop the high resolution and high fidelity of migration imaging, high precise velocity estimation,velocity model building,visualization research,vector migration imaging and fast migration algorithms.更多还原