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The Synthetic Analysis of the Direct Arrival in Marine Seismic Survey
Author(s): 
Pages: 111-114
Year: Issue:  1
Journal: OCEAN TECHNOLOGY

Keyword:  地震勘探直达波鬼波;
Abstract: 海洋高分辨率地震调查主要受震源系统、接收系统、缆源的调谐组合技术、地震记录系统和野外作业条件的影响.缆源的调谐组合技术是整个方法研究最为关键的环节之一.通过对"电缆、震源的沉放深度"等野外参数的合理组合,达到最理想的勘探效果.受地震勘探中"鬼波效应"的影响,缆源的调谐组合参数与地震系统的接收频率直接相关,对地震调查资料影响很大.文中从地震系统的滤波效应、直达波与鬼波传播路径及时间差及野外资料的处理对比和理论计算,分析了直达波和鬼波的综合效应,结果表明理论与实际资料在陷波点及幅频特性方面非常一致.研究结果在"海洋天然气水合物调查"项目中得到了应用,对缆源沉放深度的确定具有一定的指导意义.
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