广角反射在复杂山地地震采集中的应用  

Application of wide angle reflection in seismic acquisition in complex mountainous area.

作　　者：张韶峰[1] 晋为真[1] 郑金军[1] 许生卫[1] 

机构地区：[1]中国石油化工股份有限公司江苏油田分公司物探处,江苏扬州225007

出　　处：《勘探地球物理进展》2008年第1期65-68,共4页Progress in Exploration Geophysics

摘　　要：广角反射条件下深层地震记录的信噪比较高,获得的地震资料质量较好,因此广角反射勘探方法是复杂地表区地震勘探的一种有效方法。根据广角反射理论,分析了实际地震采集中不同炮检距广角反射对地震资料的影响,获得了适合于YM-1区块地震采集的炮检距。与以前的地震剖面相比,新剖面上地震反射波组的能量、信噪比及连续性均有明显改善。With wide angle reflection seismic acquisition,high signal-to-noise ratio deep seismic data can be recorded.Therefore,wide angle reflection seismic is an effective seismic acquisition method in areas of complex mountainous terrain.With wide angle reflection theory,we investigated the effect of different offsets on seismic data quality,and determined the optimal offset for seismic acquisition in working area YM-1.Compared to legacy data,the newly acquired data is superior in reflection energy,S/N ratio,and event continuity.

关 键 词：广角反射 信噪比 炮检距 

分 类 号：P631.4[天文地球—地质矿产勘探]