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Spatial and Temporal Monitoring of Salt Solution Infiltration Using Electrical Resistivity Tomography(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2007年第01期
Page:
95-98,106
Research Field:
Publishing date:

Info

Title:
Spatial and Temporal Monitoring of Salt Solution Infiltration Using Electrical Resistivity Tomography
Author(s):
WU Kai-jiang1ZHOU Qi-you2
1. Tarim Oilfield Company, PetroChina, Korla 841000, Xinjiang, China; 2. Department of Earth Sciences, Nanjing University, Nanjing 210093, Jiangsu, China
Keywords:
electrical resistivity tomography salt solution electrical resistivity infiltration process
PACS:
P631.3
DOI:
-
Abstract:
The infiltration process of salt solution is investigated in a laboratory scale rock block using electrical resistivity tomography. First, an infiltration experiment with distilled water and salt solution is made on a rock column, and the infiltration process is monitored with a multi-channels high-density electrical resistivity tomo- graphy system. Then, an electrical resistivity tomography for the rock column is constructed. The electrical re- sistivity distributions at different planes reflects the spatial variations of salt solute in the rock block. The results indicate that actively monitoring salt solution infiltration process in a sample scale rock block with high-density e- lectrical resistivity tomography is feasible. The electrical resistivity images indicate that the infiltration in the rock block is an asymmetrical process.

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