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为了适应江西具体的地震工作条件,在现有的719机地震专用程序的基础上,我们增编了静校、变观测系统等内容,改善了原有处理程序的适用范围。一、静校问题江西小盆地的地震地质条件复杂,原始资料质量不高,有效波不能大范围连续追踪;因此,文献中介绍的各种“自动静校”方法目前尚难于实现。我们只好采用微测井求得的表层平均速度,然后以某个海拔高度为基准面,对地形及炮点深度进行静校正。速度谱的静校量是对并带记录而言的,即每计算一张谱,就输入一次静校数据,相
In order to adapt to the specific earthquake conditions in Jiangxi Province, on the basis of the existing special program for earthquake-hitched 719 planes, we have added statics and variable observation systems to improve the applicability of the original procedures. First, the static problem Jiangxi small basin of the geological conditions of the complex earthquake, the original data quality is not high, the effective wave can not be a wide range of continuous tracking; Therefore, the literature describes the various “automatic static method” is still difficult to achieve. We had to use surface micro-logging average velocity, and then an altitude of the datum, the topography and shot depth static correction. The static calibration of the velocity spectrum is for the band recording, that is, for each calculation of a spectrum, enter the static data, phase