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Well Design Toolkit©
The Well Design
Toolkit© (WDT) is an application
(.EXE) program containing over 30 Microsoft Excel® worksheets and forms with
supporting charts and tables to help
you design a water well or simply carry out specific design
calculations. There is a choice of metric
or US units and different currencies ($,
€ or £).
Try one of the calculators
Topics:
The worksheets are grouped into the following
topics.
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BI |
Background Information |
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CI |
Corrosion/incrustation indicator |
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CM |
Casing materials |
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CQ |
Well costs and Bill of Quantities |
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D |
Development |
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GSA |
Grain size analysis for slot and pack design |
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HC |
Hydraulic criteria |
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RR |
Recharge rate and head |
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SSM |
Steel screen materials |
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U |
Units converter |
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V |
Volume and annular volume |
The WDT Contents List
is colour coded to topic tabs
and each sheet name is also linked to the worksheets to navigate easily between them. User notes, comments, supporting tables, charts and figures are included
and a units converter and design summary worksheets are also incorporated.
Contents overview:
The current
version of the Well Design Toolkit (v1.2.2) contains the following:
Data entry forms
■ Background design information
(site, area, layer/aquifer type, pumping rate and
pumping test results, water
chemistry).
■ Bill of
Quantities (over 60 items to
estimate well construction costs).
Data analysis
and data plots
■
Grain size data analysis and
plots of
multiple samples for screen and pack design
(percentage passing or retained
data
tables and plots; percentiles;
effective size; uniformity
co-efficient; and pack-aquifer
ratios).
■
Casing materials (weight,
collapse and yield strength of mild steel and stainless steel casing; weight and collapse
strength of PVC casing).
■
Steel screen
materials (collapse and yield
strength of continuous slot,
shutter and
slotted mild steel and stainless
steel screen).
■
Screen open area,
entrance velocity, transmitting
capacity, length
and diameter.
■
Approach
velocity, Reynolds Number,
Up-hole velocity.
■
Well capital, loan
and operating costs ($,
€ or £ per unit volume and time).
■
Operating costs ($,
€ or £)
of electric and engine-driven
pumps.
■
Ryznar Stability Index
(with supporting
charts of S and C functions) to
assess corrosion or encrustation
potential.
■
Recharge
(injection) rate and positive
head for recharge wells.
■
Volume and annular
volumes for estimating pack or
grout volumes.
■ Air-lift pumping development (minimum
pressure requirements with
supporting submergence charts
and
pipe sizes table).
■
Pump horsepower
(water, brake and input
plus pressure to head converter)
Units:
The WDT has a choice of
consistent
metric (SI) or US units and major currencies ($,
€ or £) and includes a converter
from metric to US units and from US to metric units for the more commonly
used hydrogeological and well design parameters.
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