宽线技术在东海南部地震资料处理中的应用研究

Application of Wide-line Technology in Seismic Data Processing in the Southern East China Sea

为了东海陆架盆地南部中生代沉积层的进一步研究要求,开展了立体震源的海洋宽线地震采集处理技术的研究应用。结果表明,成果资料品质较好,主要体现在资料低频信息增加,深层反射波组特征明显、资料信噪比提高、横向连续性向好。海上立体震源宽线地震是提高中深层地震资料质量较为经济、实用、有效的技术,较好提高了东海南部中生界地层中地震叠前偏移成像效果。

In order to further study the Mesozoic sedimentary formation in the Southern East China Sea shelf basin,the research and application of wide-line seismic acquisition and processing technology for stereo source was carried out.The results show that the quality of the obtained seismic data is excellent,which is mainly reflected in the following aspects:increase of low-frequency information of the data,the obvious characteristics of deep reflection wave group,the improvement of signal to noise ratio of the data,and the good transverse continuity of the data.The seismic acquisition of the sea towing cable wide line is an economical,practical and effective technique for improving the quality of seismic data in the middle and deep strata,and strengthen the effect of seismic prestack migration imaging of Mesozoic strata in the Southern East China Sea.