Research on Vz Noise Recognition and Suppression Technology Based on Four Components of Submarine Nodes

The suppression of "shear wave leakage noise" or "Vz noise" is one of the key steps in the de-noising process of submarine node seismic data processing. The usual method is to suppress Vz noise completely in Z component based on P component pattern. However, in practice, it is difficult to suppress the Vz noise completely through the noise model of P component architecture. Therefore, this paper makes full use of the advantages of four components of OBN (Ocean Bottom Node) data, and proposes a processing method that combines R, T and P components for pattern recognition and model construction of Z component noise, and then suppress Vz noise. This method can better extract shear wave noise in Z component, which has better denoising effects compared to the original method.