新疆喀拉通克铜镍矿地震资料噪声分析与压制  

Analysis and suppression of seismic data noise in the Kalatongke copper-nickel deposit,northern Xinjiang

作　　者：张保卫[1] 王小江[1] 张凯[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《物探与化探》2016年第4期771-777,共7页Geophysical and Geochemical Exploration

基　　金：地质大调查项目(12120113100700)

摘　　要：金属矿地震勘探中原始数据的信噪比较低,多种干扰波混杂在地震记录中,严重影响了金属矿地震资料的成像质量。因此,选择有效的去噪方法是提高资料品质的关键。以新疆喀拉通克铜镍金属矿区地震资料处理为基础,在FOCUS5.4处理软件平台下采用多方法联合去噪技术压制单频波、声波、面波以及机械振动等干扰。通过模块测试和参数调试,找到适合该金属矿区的去噪方法技术。经过去噪处理,大幅提高了金属矿地震资料的信噪比。The signal-to-noise ratio（ SNR） of raw data from seismic exploration in the metallic deposit is very low,and various sorts of interference waves are mixed in the record,which seriously influences the quality of image formation for mineral seismic data. Therefore,an effective method of de-noising is the key to improving data quality. Based on seismic-data processing of the Kalatongke copper-nickel deposit in northern Xinjiang,the authors adopted multi-method combinational de-noising of FOCUS5. 4 software to suppress mono-frequency noise,acoustic interference,surface wave and mechanical oscillating interference. Based on module experiment and parameter test,the authors found noise removal methods which are adapted to the contact mineral zone. This de-noising processing improves greatly SNR of mineral seismic data.

关 键 词：金属矿地震 信噪比 串联去噪 单频波 线性噪声 

分 类 号：P631.4[天文地球—地质矿产勘探]