摘要
人工合成地震记录,在地震资料的解释和储层预测中起着重要的作用。通过对地震子波时变和空变特点的剖析,阐述了划分时窗的必要性,进而结合合成地震记录的制作原理和方法,提出了综合利用雷克子波和井旁地震道提取子波,并进行分时窗制作高精度合成地震记录的一般方法。最后将该方法应用于实例,得到的合成记录不仅与实际地震剖面吻合较好,而且分辨率也较高。
Synthetic seismogram plays an important role in the seismic interpretation and reservoir prediction.Through analyzing the characteristics of the seismic wavelet which is time-varying and spatially variable,the paper explains the need for dividing the time window,then by combining the synthetic seismogram Principles with the methods,it is proposed that a general method using the divided time window to produce a high-precision synthetic seismogram,which utilizes the ricker wavelet and the extracted wavelet from the closest well seismic.Finally,this method is used on the actual well,the synthetic seismogram which is coincided not only with the seismic but also the higher resolution.
出处
《物探化探计算技术》
CAS
CSCD
2011年第1期40-44,119,共5页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
地震子波
分时窗
合成记录
高精度
分辨率
seismic wavelet
time window
synthetic seismogram
high precision
resolution
