摘要
可变面元三维地震观测系统采用了不同于常规三维观测系统的参数,可形成不同尺寸的面元资料。松辽盆地南部十屋断陷四五家子—八屋地区断裂系统发育,小断层较多。为了提高破碎小断层的成像精度,采用可变面元观测系统进行地震资料采集。在地震资料处理中,采用了层析静校正、多域去噪、地表一致性反褶积、CMP重排与基准面重新计算和叠前时间偏移等关键技术。对松辽盆地南部四五家子—八屋地区高精度可变面元三维地震资料进行了分析、处理和解释,解决了该区特殊的地质问题,取得了好的勘探成果。
The parameters of bin-divisible 3D seismic geometry are different from that of conventional 3-D geometry,which can obtain data with different bin size.The faulted system of Siwujiazi-Bawu area of Shiwu Fault Depression in the south of Songliao Basin is developed with many small faults.In order to improve the imaging accuracy of fractured small faults,bin-divisible geometry is utilized to acquire seismic data.In seismic data processing,some key techniques were used,including tomography statics,multi-domain denoising, surface consistent deconvolution,CMP rearrangement, stratum recalculation and pre-stack time migration.By analyzing, processing and interpreting the high-precision bin-divisible 3D seismic data in Siwujiazi-Bawu area,different kinds of geologic problems were solved,and good exploration results were achieved.
出处
《石油物探》
EI
CSCD
北大核心
2011年第1期82-88,20,共7页
Geophysical Prospecting For Petroleum
