摘要
地震资料准确标定是地震资料精细解释工作的基础。从声波时差、密度资料的环境校正入手 ,利用合成地震记录求取准确的时间深度关系 ,获得与井旁地震资料最佳匹配的非零相位实际地震子波 ;利用子波反褶积完成地震子波的零相位化改造 ,消除地震子波非零相位化引起的干涉假象和相邻地震工区间的闭合差 ,提高地震资料的分辨率。清晰的地震反射结构突出了特定的地质现象 ,为地震资料的准确标定提供了依据。
Accurate calibration of seismic data provides the foundation for detailed data interpretation. Seismic wavelet, which is optimally matched with the seismic traces in the vicinity of wells, was defined in course of determination of accurate time distance curves from synthetic seismograms, based on sonic and density data after environmental correction. The resulting wavelet was then changed into zero phase one by wavelet deconvolution to eliminate the false images caused by non zero phase wavelet and misties between neighboring survey areas. Distinct seismic reflection configuration reveals the subsurface structures, which provides a solid base of accurate seismic data interpretation.
出处
《勘探地球物理进展》
2003年第2期121-123,共3页
Progress in Exploration Geophysics
