ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

3D Electrical Resistivity Imaging of Subsurface Seepage of Hydrocarbon
Contaminated Water, at Kerbala Region Iraq
Firas H. Khalid
Minstry Water R. Gen Dir. Gw. Investg. Dept. Bagdad, Iraq
The first 3D resistivity imaging survey in all Iraq country is carried out near water well contaminated
with hydrocarbon materials in Karbala governorate for delineating subsurface seepage of
contaminated water is presented in this paper. Resistivity data were collected along parallel
profiles using Wenner array and electrode spacing of 1 m. A three-dimensional least squares
algorithm based on the smoothness-constrained technique inverted the apparent resistivity
data. The results displayed resistivity distribution of the subsurface in three-dimensional volume.
Thus, both the horizontal and vertical extent of the contaminated zone was displayed. This
technique revealed low resistivity zone at depths ranging from 3 to 6 m at the investigation area.
This low resistivity zone is the most promising location for subsurface seepage of contaminated
water.
Keywords : 3D VES Imaging, HC contamination, Kerbala, Iraq
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