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徐家围子断陷致密砂砾岩目标是大庆油田重要的资源接替领域,针对该类目标区,形成了以表层Q补偿、两步法反褶积、高精度速度建模和逆时偏移为主要技术的成像流程,并在研究区进行了处理应用.对成像数据体进行了道集、剖面、构造解释和属性的对比分析,结果显示应用GeoEast-Lightning软件的逆时偏移方法完成的研究区三维地震资料的逆时偏移数据,成像效果较以往Kirchhoff积分叠前深度偏移方法有较为明显改善,研究形成的深层复杂构造GeoEast-Lightning逆时偏移的方法流程,适合研究区深层波场的特征,基本达到工业化推广的应用要求.
The target of tight sand and conglomerate in Xujiaweizi Fault Depression is an important area of resource replacement in Daqing Oilfield. For such targets, Q compensation, two-step deconvolution, high-precision velocity modeling and inverse time migration Technology and the imaging process were carried out in the study area.The comparison of the gathers, sections, constructions and attributes of the imaging data body was done and the results showed that the study area completed by the inverse time migration method of GeoEast-Lightning software The anti-time migration data and imaging results of 3D seismic data are obviously improved compared with the Kirchhoff integral prestack depth migration method. The flow field of deep complex structure GeoEast-Lightning reverse time migration is studied, which is suitable for the deep wave field in the study area The characteristics of the basic application of industrial promotion to meet the requirements.