【摘要】 浅水地震勘探对于了解近海底地质构造具有重要意义,目前已被广泛用于油气开发、近岸工程等领域。表面多次波的存在干扰了有效波信息,影响了资料品质,造成解释假象,如何有效地压制多次波,已成为浅水地震勘探中的关键问题。表面多次波衰减方法(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区域。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探讨,证实了SRME技术在海洋高分辨率地震勘探浅水区域应用效果较好。更多还原

【Abstract】 In order to improve the quality of seismic data for high-resolution seismic exploration in shallow water,effective measures are required to weaken or eliminate various interferences.SRME is a useful tool to eliminate surface related multiples.However,it is not suitable for shallow water areas,as people thought.Our research focuses on the principles of SRME and its possible application to shallow sea environment.The result shows that the stack profile using SRME may get better image in which the base is clear and faults are distinct,and SRME can be used in shallow sea area for high resolution seismic exploration if the origin of multiples is known,even though it is not so effective in the areas where the sea bottom is soft and the sediment is thick.更多还原