E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/9
E21B 43/04 (2006.01) E21B 33/068 (2006.01)
Patent
CA 1314475
TITLE Emplacement of Filter Packs and Seals for Groundwater Monitoring INVENTORS Daniel R. Boyle Russell J. Thibedeau Romeo Forconi ABSTRACT OF THE DISCLOSURE A method and apparatus for emplacement of dry particulate filter pack and seal material into a borehole to form a monitoring zone for groundwater monitoring which allows the material to be emplaced in dry form. The method involves inserting a tube into the borehole to a depth above a desired monitoring zone and consecutively injecting a first layer of seal material, a layer of filter material and a second layer of seal material, while supplying gas to the tube to prevent groundwater from contacting particulate material while in the tube. The apparatus comprises an injector, including a container and valve assembly adapted for connection to a pressurized gas supply, that allows sequential placement of seal material and filter material while continuously supplying gas to the injection tube.
610848
Boyle Daniel R.
Forconi Romeo
Thibedeau Russell J.
Bitner Ronald G.
Boyle Daniel R.
Forconi Romeo
Minister Of Energy Mines And Resources
Thibedeau Russell J.
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