The wavefield of acoustic logging in a cased hole with a single casing - part II
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Affiliation of Author(s):MIT
Journal:Geophysical Journal International
Place of Publication:England
Key Words:Downhole methods; Numerical modelling; Guided waves; Wave propagation
Abstract: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
All the Authors:Michael Fehler
First Author:Hua Wang
Indexed by:Unit Twenty Basic Research
Discipline:Engineering
First-Level Discipline:Information and communication engineering
Volume:212
Issue:2
Page Number:1414-1428
Translation or Not:no
Date of Publication:2017-11-09