初至波层析静校正在三维连片处理中的应用  

Application of First Break Chromatography Static Correction in 3-D Block-jointed Processing

作　　者：唐博文 吴艳辉 刘建红 薛宁 陈宝孚 

机构地区：[1]中国石油东方地球物理公司物探技术研究中心,河北涿州072750

出　　处：《吐哈油气》2010年第3期248-251,共4页Tuha Oil & Gas

摘　　要：在SD工区连片处理中引入表层信息约束的初至波层析静校正技术,利用初至信息和表层调查信息建立初始速度模型,在表层信息的约束下迭代反演近地表速度模型,然后计算静校正量。该方法不仅成功的解决了这些工区的常规静校正问题和资料拼接的时差问题,而且还解决了高程静校正所无法解决的长波长静校正问题。实际资料处理结果证明该方法计算的静校正量精度高,具有良好的实际应用效果。The technique of first-break chromatography static correction, which is constrained by near-surface information, is introduced during block-jointed processing of the work area SD, using information of first-break travel time and nearD surface survey establishes the initial model of velocity, and we can iteratively invert the near-surface velocity model constrained by surface interval information and calculate the static correction. This method not only can successfully solve the problems of conventional static correction and data conjunction time difference among different blocks, but also can solve the problem of long-wavelength static correction, which can not be solved by the method of elevation static correction. From the outcome of real seismic data processing, it can be proven that precision calculated by the first-break chromatography static correction is high, and its actual application effect is good.

关 键 词：连片处理 初至波 旅行时 层析静校正 长波长 高程静校正 

分 类 号：P631.443[天文地球—地质矿产勘探]