摘要
超大偏移距地震资料处理中 ,保护好各种有效信息是处理好该类资料的关键 ,而超大偏移距采集到的远偏移距反射信息不符合双曲线规律 ,用常规动校正方法后出现过动校正和拉伸等问题 ,难以完成地质要求。针对超大偏移距地震资料动校正出现的问题进行了剖析 ,为解决该类资料的处理 ,分析了各向同性介质中非双曲线动校正的方法原理 ,结合超大偏移距地震资料的特点 ,对超大偏移距资料广角反射信息的应用和沙漠地区资料处理方法进行了探讨。经实际资料处理后 。
It is key to protect various valid information in processing of ultra large offset seismic data. Alternatively, larger offset seismic data provide more nonhyperbolic information. So application of the conventional NMO method to data can result in over moveout. In this paper, in order to solve the problem , at first the authors have analyzed moveout problem and nonhyperbolic moveout method principle in transversely isotropic media and combined the characteristic of the ultra large offset seismic data, then discussed how to process ultra long offset seismic data and how to use wide*.angle reflect information. Results through the actual data processing have showed that the method is effective in desert region.
出处
《西南石油学院学报》
CSCD
2003年第2期11-14,共4页
Journal of Southwest Petroleum Institute
关键词
沙漠地区
大偏移距
动校正
广角反射
资料处理
desert region
ultra long offset
moveout
wide*.angle reflect
data disposal.
