OALib Journal期刊
ISSN: 2333-9721
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多信息约束层析反演静校正技术及其应用
Keywords: 速度结构,静校正,相带,约束函数
Abstract:
?在近地表速度结构变化较快的地区,能否做好静校正直接决定了地震勘探效果。而在复杂地区三维资料处理中,很难用一种方法彻底解决整个区块的静校正问题。为此,以非线性层析反演静校正方法为基础,在平面上对速度模型进行相带划分,以及用小折射和微测井资料作为初始模型,进行约束层析反演,可大大提高模型的垂向反演精度和空间合理性。对不同静校正方法具有成像优势的高频静校正量,采用拼接方法,在边界用函数插值方法进行处理,可实现多种方法在一个三维区块成像优势的结合。以上复杂地区三维静校正综合技术,在实际三维资料处理中见到了很好的应用效果。
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