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垂直地震剖面资料波动方程反演用于井底以下地层预测
引用本文:朱键,王永昌. 垂直地震剖面资料波动方程反演用于井底以下地层预测[J]. 西安交通大学学报, 2000, 34(4): 100-103
作者姓名:朱键  王永昌
作者单位:西安交通大学,710049,西安
摘    要:利用垂直地震剖面资料波场可分离的特点,以下行波作震源函数,上行波作约束进行一维波动方程这代反演,同时给出了一种速生成梯度生成梯度矩阵的心算法。该法适用于井底以下地 预测以及阴钻反演,实际资料的算例结果表明,这种方法具有较好的实用性。

关 键 词:波动方程 反演 垂直地震剖面 井底 地层预测
修稿时间:1999-08-01

Vertical Seismic Profiling for Predicting Layers below Well Bottom
Zhu Jian,Wang Yongchang. Vertical Seismic Profiling for Predicting Layers below Well Bottom[J]. Journal of Xi'an Jiaotong University, 2000, 34(4): 100-103
Authors:Zhu Jian  Wang Yongchang
Abstract:VSP(vertical seismic profiling) data are used in conjunction with a one dimensional wave equation inverse method. Downward wave may be regarded as source function and upward wave as restriction. An algorithm is developed for fast creating gradient matrix. To improve the quality of equation group, reflectance is chosen as the inverse parameter. Moreover, the stability and degree of noise resistant were increased by introducing a damping factor. Layers below the well bottom can be predicted in addition to SWD(seismic while drilling)inversion.
Keywords:wave equation  inverse  vertical seismic profiling
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