火成岩发育区静校正技术与应用

doi:10.13810/j.cnki.issn.1000-7210.2017.S2.008

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石油地球物理勘探 ›› 2017, Vol. 52 ›› Issue (s2) : 45-49. DOI: 10.13810/j.cnki.issn.1000-7210.2017.S2.008

处理技术

火成岩发育区静校正技术与应用

李素闪, 程元方, 刘建红, 杨会廷, 崔向飞

作者信息 +

Static corrections for igneous rock areas

Li Sushan, Cheng Yuanfang, Liu Jianhong, Yang Huiting, Cui Xiangfei

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文章历史 +

摘要

近地表地形、复杂地质结构和低降速带等因素会损害采集到的地震反射信息，进而会极大地影响叠加剖面的成像效果和构造形态，因此静校正一直是陆地地震资料处理流程中必不可少的一环。北部湾地区表层覆盖有大面积的火成岩，其厚度变化剧烈，表层岩性变化大，难以构建精准的近地表模型。充分利用微测井、折射波、综合物化探多种信息，并融合多种方法的优势，建立了准确的近地表模型，取得了满意的静校正效果。

Abstract

Static corrections are always the key of seismic data processing flow. Seismic stack and imaging are usually significantly affected by near-surface topography, complex geological structures, and weathering zones. Beibu Gulf area is covered by immense igneous rocks with rough thickness variations and surface lithologic changes. To overcome the statics problem, we have to build an accurate near-surface model. For this purpose, we use diffe-rent types of information, such as uphole, refraction, and gravity-magnetic-electric (GME) data, and build an accurate near-surface model. Our processing application proves the correctness of the proposed approach.

导出引用

李素闪, 程元方, 刘建红, 杨会廷, 崔向飞. 火成岩发育区静校正技术与应用[J]. 石油地球物理勘探, 2017, 52(s2): 45-49 https://doi.org/10.13810/j.cnki.issn.1000-7210.2017.S2.008

Li Sushan, Cheng Yuanfang, Liu Jianhong, Yang Huiting, Cui Xiangfei. Static corrections for igneous rock areas[J]. Oil Geophysical Prospecting, 2017, 52(s2): 45-49 https://doi.org/10.13810/j.cnki.issn.1000-7210.2017.S2.008

中图分类号： P631

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