拉冬变换压制多次波技术在大庆探区的应用  

APPLICATION OF MULTIPLE SUPPRESSION TECHNIQUE USING THE RADON TRANSFORM IN DAQING EXPLORATION AREA

作　　者：褚玉环[1] 刘清华[1] 王宝[1] 徐忠民[1] 李森贺[1] 

机构地区：[1]大庆钻探工程公司物探一公司,黑龙江大庆163357

出　　处：《大庆石油地质与开发》2009年第6期325-327,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：在地震资料的处理中，为了消除不同类型的全程及层间多次波对叠加资料的影响，地球物理学家探索了许多方法，如水平叠加法、预测反褶积法等，但效果并不理想。近年来，拉冬变换压制多次波技术受到人们的青睐。该方法是利用一次反射波与多次波的速度差异进行拉冬正变换、拉冬速度切除及拉冬反变换压制多次波，从而消除了多次波对叠加资料的影响。从拉冬变换在大庆探区松辽盆地内部及外围盆地不同工区资料处理中对层间及深层多次波压制方面取得的效果可以看出，多次波被压制后，地震资料的成像更加准确，避免了假构造的产生，为地震资料的解释提供了高质量的地震处理数据。In seismic data processing, in order to eliminate the influence of different-type full course and interbed- ed multiples on stacked data, geophysicists have explored a lot of methods, such as horizontal stacking, predicting deconvolution and so on. But the effects are not desirable. In recent years, multiple attenuation technique by Ra- don transform is focused. With the help of the velocity differential between primary reflection wave and multiple~ Radon normal transform, Radon velocity blanking and multiple attenuation by reverse Radon transform are conduc- ted. Thus the above influence can be eliminated. The effects of Radon transform for suppression of interbeded and deep-layer multiples applied in data processing in different regions of both inner and outer Songliao Basins of Daqing exploration area show that the imaging precision of seismic data becomes more accurate and high, and more- over the generation of pseudo-structures has been avoided after multiple attenuation. In a word, high-quality seis- mic processed data are provided for the data interpretation.

关 键 词：地震资料处理 拉冬变换 多次波 压制 

分 类 号：P631.4[天文地球—地质矿产勘探]