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所属单位：MIT

发表刊物：Geophysical Journal International

刊物所在地：England

关键字：Downhole methods; Numerical modelling; Guided waves; Wave propagation

摘要：The acoustic method, being the most effective method for cement bond evaluation, has been
used by industry for more than a half century. However, the methods currently used are almost
always focused on the first arrival (especially for sonic logging), which has limitations.We use
a 3-D finite-difference method to numerically simulate the wavefields from a dipole source
in a single-cased hole with different cement conditions. By using wavefield snapshots and
dispersion curves, we interpret the characteristics of the modes in the models. We investigate
the effect of source frequency, the thickne

全部作者：Michael Fehler

第一作者：Hua Wang

论文类型：基础研究

学科门类：工学

一级学科：信息与通信工程

卷号：212

期号：2

页面范围：1414-1428

是否译文：否

发表时间：2017-11-09