Seismic horizon velocity field correction method

The invention relates to a seismic horizon velocity field correction method, which belongs to the technical field of oil and gas field exploration, and comprises the following steps: firstly calculating a normalized coherent body of seismic data, then judging an area to be corrected through a coherent value, and finally correcting a seismic horizon velocity field in a cluttered area by adopting a multi-term control correction equation. The problem that velocity field modeling of the interval velocity field is not accurate in data disordered areas such as a low signal-to-noise ratio area and a fracture area is solved. 本发明涉及一种地震层速度场校正方法，隶属于油气田勘探技术领域，该方法首先计算地震数据的归一化相干体，然后通过相干值判断待校正区域，最后在杂乱区域采用一种多项控制的校正方程对地震层速度场进行校正，解决了层速度场在低信噪比区域、断裂区域等资料杂乱区域速度场建模不准确的问题。