泌阳凹陷三维地震资料高精度处理技术

针对泌阳凹陷地表条件复杂及干扰波比较发育的特点,结合目前实际生产中存在的中深层反射波信噪比低和边界断裂偏移归位误差大等问题,在叠前噪声压制、静校正、振幅处理、反褶积及偏移成像方面提出了一些具体作法,也做了不少有益尝试,增强了中深层反射波能量,偏移成像精度也有一定幅度的提高,从整体上提高了地震资料处理的精度。并提出地震资料处理质量提高是一项系统工程,要靠多种方法逐渐积累才能提高资料处理的整体水平。

High Accuracy Processing of 3D Seismic Data in Biyang Sag

In light of characteristics of complex surface condition and developed interference wave in Biyang sag,integrated with existed problems of low s /n ratio of medium-deep reflection and big migrated regression error at boundary faulting,this paper presents some ma-terial measurements in prestack noise rejection,static correction,amplitude processing,inverse convolution and migration imaging,in-cluding some profitable attempts.All these improve medium-deep reflecting energy and migrated imaging ac curacy,hence allow whole seismic data processing quality to be increased.In addition,it is suggested that improving the quality of seismic data processing is a sys-tematic project,which need variety of methods to be gradually integrated with so that reaches higher level on the whole.