高分辨率处理技术在辽河雷家地区碳酸盐岩储层中的应用

High-resolution processing techniques applied for carbonate reservoirsin Leijia Area,Liaohe

为了有效识别薄储层,精细刻画小断层,支撑岩性油气藏勘探,以辽河雷家地区湖相碳酸盐岩为例,依托GeoEast系统,应用独立同步扫描邻炮干扰压制、聚束滤波多次波衰减、混合震源资料匹配、地表一致性反褶积、零相位反褶积、经验模态分解高分辨率处理等技术,在保证资料信噪比的基础上,分阶段逐步提高地震资料的分辨率。地震成果剖面在目的层段层间反射信息丰富,有效频带合理拓宽,显著地提升了地震资料品质。

In order to effectively identify thin reservoirs,finely characterize subtle faults,and support lithologic reservoir prediction,we demonstrate in this paper a seismic data processing example in Leijia Area,Liaohe with processing tools provided by GeoEast System.In this area,the exploration target is lacustrine carbonate rock.High-resolution processing techniques of GeoEast System are adopted such as beam multiple suppression,vibroseis data de-blending,surface-consistent deconvolution,zero-phase deconvolution,and empirical modedecomposition.Both the resolution and signal-tonoise ratio(SNR)of the processed seismic data are greatly improved.The data frequency band is reasonably broadened.There is much more target information on the data.The imaging quality of the seismic data has greatly improved in the area.