摘要
针对无检波器组合的单点高密度地震数据,应用数值模拟和实际地震数据的处理试验和理论分析发现:(1)室内组合可以相对有效地压制随机干扰和面波;(2)室内组合可以在静校正之后进行,这样有利于同相叠加和频带的保持;(3)组合对地震主频有损伤,且组合道距越大,主频降低越明显;(4)在保证信噪比的前提下,无组合更有利于高分辨率地震勘探.
To the Q-Land seismic data, it is found by numerical modelling, field seismic data process testing and theoretical analysis that.. (1) Indoor combination can suppress random noise and surface wave comparative effectively; (2) Indoor combination after static correction could keep the frequency band because of the same phase stacking; (3) Combination will cause damage to the main frequency, which decreases more apparently along with the bigger combination trace interval and (4) Under the condition of good signal-to-noise ratio, none-combination is more favorable to the high resolution seismic exploration.
出处
《地球物理学进展》
CSCD
北大核心
2010年第6期2115-2124,共10页
Progress in Geophysics
基金
国家自然科学基金"多分量转换波地震勘探中的面波法静校正研究"(40574055)项目
科技部973项目课题七"深部煤岩多相地质体的地球物理响应"(2006CB202207)联合资助
关键词
组合
单点
高密度
面波
信噪比
combination, single-geophone, high density, surface wave, signal-to-noise ratio