【摘要】 速度参数和成图方法的选取对于提高三维地震反射层构造图的精度是很重要的 ,文章提出了由地震资料的叠加速度来获得界面平均速度 ,并利用钻井资料对界面平均速度校正 ,得出了符合地质规律的平均速度 ,提高了作图精度。该方法成功地应用于华北某煤田勘探区的三维资料解释中 ,弥补了传统时深转换方法的不足 ,收到了很好的效果 ,所绘制的构造图深度同巷道资料吻合。更多还原

【Abstract】 It is very important to improve the precision of 3-D seismic reflection structural maps by selecting velocity parameters and mapping methods.In this paper using stacking velocity from seismic data obtains interface average velocities,and corrects the velocity by drilling data,and acquires average velocities conforming to geological laws.The methods improve the accuracy of mapping.It is successful in applying 3-D data’s interpretation in exploration area of Northern China coal field,and making up insufficiency for the traditional method of time to depth.It is effective and the structural mapping depth is identical with data of tunnel.更多还原