Journal Article

PreJuSER-9456

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The use of non-conventional CPTe data in determination of 3-D electrical resistivity distribution

Nyari, Z. ; Kanli, A. ; Janos, S. ; Tillmann, A.FZJ*

2010
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jappgeo.2010.01.008

Abstract: The spatial distribution of the electrical resistivity data provides useful information for investigating and modeling the fluid transport processes. 3D electrical resistivity distribution provides information about water flow and changes in electrical resistivity of the pore fluid.Therefore, to assist in understanding and modeling of the fluid transport process, 3D spatial distribution of the electrical resistivity data with the corresponded 3D geological section were mapped and interpreted in the test site located in western Germany. A process of deriving electrical resistivity values from the mechanical and radioactive parameters of cone penetration tests (CPT) and geological information of boreholes was presented. A reliable method which gives accurate resistivity values in cases of near surface sediments was introduced. Then a field test was executed where the calculated resistivity values were compared with the measured CPTe resistivity data. The CPTe (cone penetration test with electrical extension) data were also used in correlating to the ERT (electrical resistivity tomography) data. Consequently, obtained dense CPT surveys give us the possibility to determine a high resolution resistivity distribution of the investigated area. (C) 2010 Elsevier B.V. All rights reserved.

Keyword(s): J ; CPTe resistivity (auto) ; Well-log interpretation (auto) ; ERT (auto) ; 3D resistivity distribution (auto) ; Contamination (auto)

Note: This work is funded partly by the NATO Collaborative Linkage Grant No. 979868. This paper presents partly the results of research project GVOP-3.1.1-2004-05-0187/3.0 supported by the National Development Plan, the EU co-financed part of the Europe Plan. This work was supported by the Research Fund of Istanbul University, project number: UDP-4295/23092009. We would like to thank Klaus Holliger (Editor-in-Chief) and the reviewers for their constructive remarks.

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Research Program(s):

1. Terrestrische Umwelt (P24)

Appears in the scientific report 2010

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