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ISS(独立同步扫描)是一种高效地震采集技术,其资料处理大都采用对未分离的资料直接进行处理.为了研究这种处理方式的适用性,采用可控震源同步扫描连续记录正演模拟技术模拟一条5个同步震源的ISS密点采集剖面,与扫描信号互相关后形成相关后的炮道集,并对其进行高精度波场分离,将未进行波场分离的数据体与波场分离后的数据体分别抽成多条不同叠加次数的叠前数据体,再分别进行常规处理,从而得到不同叠加次数波场分离前后的处理剖面,通过对比分析这些剖面的差异,以确定波场分离对不同叠加次数ISS采集资料成像效果的影响,结合对野外采集资料的处理分析,说明了波场不分离的常规处理方式适用于较高叠加次数的ISS资料的处理,而ISS采集大都是密点采集,叠加次数很高,因此这种处理方式是有效的.
ISS (Independent Synchronous Scanning) is an efficient seismic acquisition technology, and most of its data processing is used to directly deal with the undivided data.In order to study the applicability of this processing method, continuous recording forward simulation technology of vibroseis synchronous scanning An ISS density acquisition cross section of a 5-sync source was simulated. After correlation with the scan signal, the related shot-tract was formed and separated by a high-precision wave-field. The data body without the wave-field separation was separated from the wave field After the data body were extracted into a number of different pre-stack prestack data body, and then respectively conventional processing, so as to obtain different stacking frequency wavefield separation before and after the processing section, by comparing the differences between these sections to determine the wave field separation The effect of different superposition ISS data acquisition imaging results, combined with the field data processing analysis shows that the wave field does not separate the conventional processing method is suitable for the higher number of superimposed ISS data processing, and ISS acquisition are mostly secret point Acquisition, stacking a high number of times, so this approach is effective.