NDLI: Field test to compare 3D imaging capabilities of three arrays in a site with high resistivity contrast regions

Content Provider	Springer Nature Link
Author	Neyamadpour, Ahmad
Copyright Year	2011
Abstract	The applicability of three kinds of electrode configurations used to delineate a buried horizontal pipe was studied. A 3D resistivity imaging survey was carried out along eight parallel lines using pole-pole, pole-dipole, and dipole-dipole arrays with 1m minimum electrode spacings. Roll-along measurements were carried out to cover a rectangular grid. The 2D and 3D least squares algorithms based on the robust inversion method were used in the inversion of the apparent resistivity data sets. The 2D inversion of data sets could not delineate the orientation and dimension of the subsurface anomalies clearly. To obtain more accurate results, a 3D joint inversion of the pole-pole and pole-dipole data sets was performed, as well as of pole-pole and dipole-dipole data sets. In this case, both horizontal and vertical dimensions of subsurface structures were resolved. The resulting model obtained from each array was compared to those of joint inversion method. The result showed that the horizontal resolution does not improve so much as that in the vertical direction when joint inversion is applied.
Starting Page	755
Ending Page	769
Page Count	15
File Format	PDF
ISSN	00393169
Journal	Studia Geophysica et Geodaetica
Volume Number	55
Issue Number	4
e-ISSN	15731626
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-09-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	3D ERI test measurement pipeline pole-pole pole-dipole dipole-dipole arrays Geophysics/Geodesy Structural Geology
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

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