共偏移反射面元叠加
摘要:
传统的共反射面元(CRS)叠加都是基于共中心点(CMP)道集做的,只能得到地下构造没有准确归位的叠加剖面。考虑将CRS方法的优势扩展到成像域,即基于共散射点(CSP)道集进行CRS叠加,该方法的第一步就是获得高信噪比的CSP道集。针对传统的CSP映射方法存在映射噪声、映射效率等问题,提出了一种新的CSP道集映射方法,然后对CSP道集进行偏移成像,称作共偏移反射面元(CMRE)叠加。由于考虑了相邻的CSP道集,增加了叠加道数,能够得到一个高质量的偏移剖面。模型数据和实际资料的结果证明了该方法的准确性和有效性。
文章引用:潘兰, 贺剑波. 共偏移反射面元叠加[J]. 石油天然气学报, 2015, 37(9&10): 14-21.
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