τ-q变换压制多次波方法在天环坳陷北段的应用  

Application of τ-q Transform for Multiple Wave Pressing in the North of Tianhuan Depression

作　　者：周齐刚[1] 窦玉坛[1] 许建权[1] 高利东[2] 陈娟[2] 李美[2] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020 [2]长庆油田公司勘探开发研究院,陕西西安710018

出　　处：《石油天然气学报》2012年第11期73-75,169,共3页Journal of Oil and Gas Technology

摘　　要：天环坳陷北段地震资料多次波非常发育,严重干扰了有效信息,降低了资料品质。因此,有效压制多次波,降低多次波对有效波的干扰是该地区资料处理的重要环节。在对地震资料分析的基础上,研究了τ-q变换压制多次波方法在天环坳陷北段的应用,结果表明,该方法能够取得较好的多次波压制效果,与常用的F-K变换压制多次波方法相比更具优越性,能够较大程度地降低多次波对有效波的干扰,提高资料的信噪比和成像质量。The multiple data were highly developed for seismic data in the north of Tianhuan Depression,the effective information seriously was influenced and quality of seismic data was poor.Therefore it was the key to press the multiple waves and reduce its influence on the effective wave.Based on the analysis to seismic data,the application of τ-q transform for multiple waves in north of Tianhuan Depression was researched.The result shows that the method can be used for obtaining better effect of wave pressing.In comparison with F-K Transform for multiple wave pressing,the effect of τ-q transform is better and can greatly reduce the interference of multiple wave pressing,the signal-to-noise ratio and imaging quality of seismic data are improved.

关 键 词：天环坳陷北段 多次波 τ—q变换 F-K变换 

分 类 号：P631.44[天文地球—地质矿产勘探]