【摘要】 三维叠前深度偏移技术是解决复杂构造和速度横向变化剧烈地区地震资料成像问题的有效手段。介绍了基于STseis系统的Kirchhoff积分法叠前深度偏移的基本原理及处理流程,给出了应用该系统对胜利油田BS6地区三维地震资料叠前深度偏移处理的效果。与常规叠后时间偏移剖面相比,叠前深度偏移资料断面形态更加清晰,潜山及内幕成像更加清楚,表明了该方法及软件具有良好的应用效果。更多还原

【Abstract】 3-D prestack depth migration is the most effective way of imaging in areas of complex structure and rapid lateral variations of velocity. We discussed the prestack depth migration techniques and processing flow of STseis software system and presented the results of 3-D prestack depth migration on the real seismic data from BS6 area. Compared to poststack time migration sections, the fault planes are more definite and the image of buried hill is clearer on the prestack depth migration sections. This proves the effectiveness of 3-D prestack depth migration techniques of STseis software system.更多还原