湘鄂西地区地震采集干扰波压制方法研究  

On Disturbing Wave Suppressing Method for Seismic Acquisition in Hunan-Hubei West Region

作　　者：路廷瑞 

机构地区：[1]中石化石油工程地球物理有限公司江汉分公司,湖北潜江433100

出　　处：《江汉石油职工大学学报》2015年第1期10-12,16,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：湘鄂西地区地震地质条件复杂多变,地形切割剧烈、地表岩性变化较大,激发和接收条件差;断裂发育,构造变形强烈,构造接触带反射波组特征不明显,基本为杂乱反射。经过分析研究表明,制约湘鄂西地区资料品质的关键因素在于地震干扰。在研究分析湘鄂西地区的生产资料和试验资料的基础上,结合野外实践和理论基础,重点针对湘鄂西地区次生干扰的特点进行检波器压制干扰的方法分析,研究不同组内距、检波器数量、组合基距、组内高差、检波器组合形式下次生干扰的压制效果,以改善湘鄂西地区地震资料信噪比。Hunan-Hubei west region is characterized by complex and changeable seismic geological conditions,violently dissected topography,great ground lithological changes,poor shooting and receiving conditions,well-developed fracture,intense tectonic deformation and unapparent reflective waves feature.The research shows that the key factor hindering data quality in the region is seismic noise.On the basis of analysis of the data of test and production in the region,this paper studies the method to suppress secondary disturbing wave with the help of geophone and its suppressing result under different forms of element interval,geophone numbers,base group length,elevation difference in an array and geophone pattern,with the purpose of improving SNR of seismic data in the region.

关 键 词：湘鄂西地区 地震采集 压制方法 次生干扰 组合形式 信噪比 

分 类 号：P631.4[天文地球—地质矿产勘探]