Deep Wells

Deep wells are used to carry out dewatering, drinking water extraction and remediation of contaminated aquifers. Deep wells are best suited for operation in aquifers with permeability coefficients [kf] from 1x10-2 m/s to 1x10-5 m/s. They are installed by drilling a borehole with a diameter from 324 mm to 2000 mm at depths up to 300 m. Depending on the diameter, the site`s geological conditions and the intended depth, the borehole can be sunk using casing drilling or rotary drilling.

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deep well

multistage submersible pump

bridge slotted screen

drinking water extraction

aquifer contamination

slotted screen

The borehole is drilled and then lined with a filter pipe. The annular void around the filter string is filled with gravel. The filter pipe can be made of wound-wire, slotted or bridge-slotted screens made of any of a number of materials.

Groundwater pumping is realized by a multi-stage submersible pump installed in the completed well.

Deep Wells

The borehole is drilled and then lined with a filt...

Deep Wells