海洋拖缆宽频地震资料处理技术及应用研究

Research and Application of Broadband Marine Streamer Seismic Data Processing

李振伟 牛华伟 周静毅 全心怡 刘嘉程

LI Zhenwei NIU Huawei ZHOU Jingyi QUAN Xinyi LIU Jiacheng

中国石油化工股份有限公司上海海洋油气分公司勘探开发研究院，上海　200120

Institute of Exploration and Development, SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

宽频地震技术可以很大程度地消除地震波传播过程中信号的影响，恢复原始信号面貌，从而拓宽地震资料频带。宽频信号可以产生更尖锐的子波，为薄层和地层圈闭等重要目标体的高分辨率成像提供全频带基础数据。通过对靶区进行宽频资料处理，并与常规处理成果对比分析，宽频成果边界断层成像更加清晰，断层与周围地层的接触关系更加清楚，波组特征更活跃，内幕细节更丰富，为精细地质解释和反演提供了更好的地震资料。

Broadband seismic technology can largely eliminate the influence of the signal in the process of seismic wave propagation, restore the appearance of the original signal, so as to broaden the frequency band of seismic data. Broadband signals can produce sharper wavelets, which can provide full-band basic data for high-resolution imaging of important targets such as thin layers and stratigraphic traps. Through the broadband data processing of the target area, and compared with the conventional processing results, the broadband results show that the boundary fault imaging is clearer, the contact relationship between the fault and the surrounding strata is clearer, the wave group characteristics are more active, and the inside details are more abundant, which provides better seismic data for careful geological interpretation and inversion.

https://doi.org/10.3969/j.issn.1008-2336.2022.02.023