辽河盆地深层地震资料处理技术

针对辽河盆地深层地震资料反射不清,信噪比及偏移成像精度低的情况,采用振幅补偿、叠前去噪、剩余静校 正、多次波压制及叠后去噪等技术提高信噪比；采用ＤＭＯ、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。使 信噪比及偏移成像精度均有明显提高,极大地提高了深层地震资料的质量。

The Techniques for Deep Seismic Data Processing in Liaohe Basin

The deep seismic data from Liaohe basin assumed indistinct reflectance signature and poor accuracy of signal/noise ratio and migrated imaging. For improving signal/noise ratio, such techniques are applied as amplitude compensation, pre-stack noise removal, residual static correction, multiple rejection and post-stack noise removal. For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used. By means of these processing techniques, both signal/signal ratio and migrated imaging accuracy have been obviously enhanced, this making the quality of deep seismic data improved greatly.