摘要
多次波的去除对于海洋浅水高分辨率地震勘探剖面质量的提高具有重要意义.SRME是一种去除海面相关多次波效果较好的技术方法,但是一般认为SRME技术并不适合于浅水资料.本文分析了SRME去除多次波的基本原理,并将其应用于海洋高分辨率浅水区域多次波的去除.实际处理效果表明,使用SRME技术处理后的叠加剖面多次波去除效果明显,剖面基底清楚,断面清晰.通过对SRME技术应用于浅水区域的原因探讨证实了SRME技术完全可以应用于海洋高分辨率地震勘探浅水区域,进一步的分析表明SRME技术对于泥质海底和沉积层较厚地区应用效果较差,而对于基底较浅地区应用效果较好.
It is important to de-multiple for the improvement of the high resolution seismic exploration profile.SRME is useful to eliminate surface related multiple.However,it is not fit for the area where the water depth is shallow experientially.The paper analyses the principle of SRME which is used to demultiple for the high resolution seismic exploration of shallow sea environment.The result shows that the stack profile with SRME is better than that without SRME which the base is clear and the faults are distinct.It is confirmed that SRME can be used in shallow sea area of high resolution seismic exploration by analyzing the reason.Further analysis shows that it is good to use SRME which the base is shallow while it is not good in areas where the water bottom is soft and the sediment is thick.
出处
《地球物理学进展》
CSCD
北大核心
2015年第1期429-434,共6页
Progress in Geophysics
基金
中国地质调查局国家海洋地质专项工作项目(GZH201200504)
公益性行业科研专项(201511037)
中国博士后基金(2012M521296)
国家自然科学基金(41406071)联合资助
