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动态滑动扫描技术(D4S)是一种滑动扫描技术和拉开距离的同步扫描技术结合的高效地震采集技术.它具有比滑动扫描技术和拉开距离的同步扫面技术更高的采集效率,但其采集资料也具有这两种采集技术所采集资料的缺点.TS工区地震资料的采集就采用了该技术.为此在分析了TS地区高效采集地震资料的谐波噪声与同步激发震源干涉炮噪声特点的基础上,分别采用反相关算子谐波压制技术和基于速度模型的弱信号提取波场分离技术来压制这两种噪声,最后利用常规处理技术进行成像处理,通过与该区常规采集技术采集资料常规处理结果的对比,说明了这种针对D4S采集资料噪声特点的处理能够充分体现高效采集技术采集资料成像精度与信噪比高的特点.
Dynamic Sliding Scanning (D4S) is a high-performance seismic acquisition technique combined with sliding-sweep technology and synchronous sweep with extended distance, which has higher acquisition efficiency than the sliding-sweep technology and the synchronized sweeping distance technique The acquisition of data also has the shortcomings of the data collected by the two acquisition techniques.This method is used to collect the seismic data in the TS area.Therefore, after analyzing the harmonic noise of the seismic data collected in the TS region and the noise On the basis of this, the two kinds of noises are suppressed by the anti-correlation operator harmonic suppression technique and the weak signal extraction wavefield separation technique based on the velocity model respectively. Finally, the imaging processing is performed by the conventional processing technique. By comparing with the conventional acquisition technique The comparison of the conventional processing results of the collected data shows that the processing for the noise characteristics of the D4S collected data can fully reflect the imaging accuracy and high signal-to-noise ratio of the collected data of the high-efficiency acquisition technology.