基于FOCUS处理系统的地表一致性剩余静校正技术及应用技巧

FOCUS processing system-based surface-consistent residual static corrections and application trick

伊朗内陆山地地表和地下地质条件复杂,激发、接收条件差,原始资料信噪比低,静校正问题突出,资料成像困难,再加上该区老资料数量大且年代久远,缺失野外校正量以及相应的低速层信息,如何解决该区的静校正问题就成为地震资料处理中一个迫切问题。为此,充分应用FOCUS处理系统中剩余静校正模块就成为东方地球物理公司研究院海外业务部伊朗处理中心一个必须完成的任务。本文重点展示目前该处理中心在使用该模块中的一些技巧和经验。

According to the issues of Iran complex inland mountainous surface and underground geologic conditions, poorer shooting and receiving conditions, lower S/N ration of raw seismic data, severe static corrections and difficult data imaging; plus a great amount of age-old legacy data that is lack of field statics and relevant low velocity layer information, how to solve the issue of static corrections in the region is the urgent issue of seismic data processing. For that reason,fully using the residual static corrections module in FOCUS processing system becomes the necessarily finished task for I-ran Processing Center of Overseas Department of GRI,BGP; the paper showed with the emphasis on some tricks and experiences that we currently use the module in the processing center.