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ADVANTAGES OF SIS HORIZONTAL GROUNDWATER EXTRACTION |
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1. |
Requires minimal energy consumption.
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2. |
SIS horizontal wells are acknowledged by
regulators as environmentally benign.
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3. |
SIS horizontal wells can reach a much larger
area than vertical wells and may provide unlimited water
volumes. |
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4. |
A unique aspect of SIS is in our design to
manifold a series or combination of wells. |
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HORIZONTAL WELL DESIGN & MATERIALS |
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The
design and materials for SIS wells vary considerably
depending on site-specific circumstances such as yield
rate, grain-size distribution
in the substrate and length and depth of the well.
Well material options typically considered
are: |
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• High density polyethylene (HDPE)
• Carbon steel
• Polyvinyl chloride (PVC)
• Fiberglass-reinforced epoxy (FRE)
• Stainless
steel
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Typically
HDPE is the choice in SIS wells because of its
flexibility and durability. It is easily joined
with a variety of screening materials to eliminate the
fine material in the product water.
Although the
above materials have particular advantages and
disadvantages related to cost,
strength, resistance to degradation and
ease of installation HDPE withstands high pressure
while
maintaining its flexibility.
Typical options to hold
back sand and stone include
EnviroFlex or other integrated screen of
which there are many including pre-packed well
screen which maintain specific filtering
properties that may hasten well development. |
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