| Autor: |
G. Nimeck, P. D. Bauman, E. W. Gilson, R. Kellett |
| Rok vydání: |
2000 |
| Předmět: |
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| Zdroj: |
13th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. |
| DOI: |
10.3997/2214-4609-pdb.200.2000_109 |
| Popis: |
Groundwater exploration and development is becoming increasingly important in western Canada as the demand and competition for water increases. Oil and gas companies, farmers and small municipalities all require large quantities of water, although for widely varying uses. Oil and gas companies are required to replace oil and gas with water to maintain reservoir pressures. Water quantity is the primary objective for re-injection purposes. Municipal and agricultural users require potable water. The aquifers of central and southern Saskatchewan and much of Alberta consist of buried Quaternary valleys consisting of sands and gravels beds, inscribed into relatively shallow marine derived bedrock. These valleys contain the majority of exploitable water in the upper 200 m. The valleys are usually 200 to 400 m wide and 60 to 100 m deep. These valleys are often unidentifiable by current topographic examination, air photo analysis, or satellite imagery. Komex International has completed a number of projects in which electrical resistivity tomography (ERT) was used to locate potential groundwater bearing zones by identifying these buried valleys, and by identifying coarser grained deposits within these valleys. A significant electrical contrast exists between the marine bedrock sediments and Quaternary derived siliclastic fluvial deposits. Subsequent drilling and testing have proven that ERT is a very suitable method to conduct large scale groundwater exploration programs for petroleum, municipal and agricultural users. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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