陕北长茂滩区表层调查方法探讨  

A Study of Shallow Layer Acquisition and Interpretation Method in Changmaotan Area of Shanbei

作　　者：韩富钱 刘海宁[1] 王忠[1] 张福祥[1] 

机构地区：[1]江苏石油勘探局地球物理勘探处,江苏扬州225000

出　　处：《工程地球物理学报》2011年第2期161-165,共5页Chinese Journal of Engineering Geophysics

摘　　要：地震勘探静校正已在构造精细解释和岩性圈闭解释与识别等领域发挥极其重要的作用。静校正不仅影响资料的品质和叠加成像效果,还对构造精细解释和岩性构造解释的识别成败与否起决定性作用。本文提出了一种综合优化模型静校正方法,即把野外静校正和大炮折射初至解释相结合的方法,用以解决表层速度与厚度剧烈变化导致的静校正问题。采用本方法建立表层结构模型和计算静校正量,用于资料的处理与解释,使构造与岩性精细解释更准确更精细,取得了良好的地质效果。此方法适用于表层结构复杂地区的构造细化解释和岩性解释等领域。Seismic prospecting statics has already played a great important role in accurate structure interpretation and lithology trap interpretation and identification ability.And its statics not only affects data quality and stack imaging effect but also decides success or failure on accurate structure interpretation and identification of lithology structure interpretation.This paper provides optimizational model statics method,which is to use field model statics and shot refraction at the same time to resolve statics problem resulted from frequent changes of surface velocity and thickness.This method is used to set up surface structure model and computing statics for the purpose of data processing and interpreting,which interprets structure and lithology more nicely and accurately.The method obtains good geological effects.

关 键 词：表层调查 模型静校正 大炮折射初至波 综合优化模型静校正 

分 类 号：P631.4[天文地球—地质矿产勘探]