摘要
如何去除面波,突出有效信号,前人已做过大量研究工作。目前工业应用的面波去噪方法主要是频率空间域的分频去噪法,但该方法在实际资料处理中较难取得理想的效果。针对此问题,对喇嘛甸油田3D3C地震资料,变换数据的观测系统,按炮线、检波线方向抽取十字排列的三维地震数据,在三维频率波数域内进行面波去除研究应用。结果表明:该去噪技术能够在不损害有效信号的前提下较好地去除面波,使资料信噪比有较大提高,从而在整体上大大地提高了地震资料处理的精度。
A great deal of previous work have been done about how to remove the surface wave and hig0hlight the effective signal,separate frequency denoising of frequency-space domain is the primary method to get rid of noise of surface wave,which is applied by industry at the moment,but it is difficult to obtain the desired results in the actual data processing.To resolve this problem,in view of the multiple type and strong energy features of 3D3C data of Lamadian oil field,in order to as much as possible eliminate the noise clearly and as little as possible to reduce the loss of effective signal,transform the data observation systems,collect three-dimensional seismic data in the direction of gun line and seisline which are cross spread,and get rid of surface wave of 3D frequency-wavenumber domain.The results show that the noise suppression technique is effective to remove surface wave noise in the premise of the effective signal is not damaged,which improves signal to noise ratio greatly,thereby the accuracy of seismic data processing is improved greatly.
出处
《科学技术与工程》
2011年第4期710-714,728,共6页
Science Technology and Engineering
关键词
去噪
面波
十字排列
信噪比
denoising surface wave cross spread signal to noise ratio
