论文标题
prestack时间的倾角迁移与未迁移数据之间的关系
Relation between Dips of Prestack Time Migrated & Unmigrated Data
论文作者
论文摘要
堆栈后迁移和未迁移数据的倾角之间的关系是众所周知且易于得出的。文献中不可用，在此处计算，在文献中没有类似的关系。由于可以使用多个偏移的迁移输出，因此所有偏移有效的公式为我们提供了一个检查迁移速度模型的正确性的工具。该公式还用于研究恒定倾角的反射器如何在恒定偏移收集器中弯曲。此外，得出了用于prestack迁移孔径的方便公式，并研究了其偏移，深度和倾角的变化。
Relation between dips of post-stack migrated and unmigrated data is well known and easy to derive. A similar relation between dips of pre-stack migrated and unmigrated constant offset data is not available in literature and is calculated here. Since migration outputs for multiple offsets are available, the formula valid for all offsets gives us a tool to check the correctness of the migration velocity model. The formula is also used to study how a reflector with constant dip gets curved in constant offset gathers. Further, a handy formula for prestack migration aperture is derived and its variations with offset, depth and dip angle studied.
