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ANSDIMAT

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ANSDIMAT software
About ANSDIMAT
Main menu
Notation
Main notation
Hydraulic parameters
Special functions
Methods of analysis
Analytical module operation
Data input (Editor)
Table data input
Observation time
Drawdown
Constant rate
Variable rate
Distance to the observation well
Screen level
Well data
Time of recovery measurements
Recovery
Last drawdown
Оbservation well data
Options
Choose conceptual scheme
Test conditions
Diagnostic plot
Plot construction
Choose plot
Select wells
Select time
Plot view
Axis properties
Observation data symbols
Caption and subscription
Basic types of diagnostic graphs
Graphs based on observations in two wells
Some special graphs and graphs of dimensionless parameters
View graphs
Rate plot
Stepwise rate approximation
Viewing data, removing measurements
Saving data
Settings
Aquifer tests analysis
Matching parameters (solving direct problem)
Value assignment
Theoretical curve features
Parameter calculation
Data correction
Graphical analysis
Strait-line method
Slug test
Method of type curve
Search for strait-line segment
Bisecting line method
Inverse problem solution
Less square method
UCODE
Conceptual schemes
Confined aquifer
Infinite aquifer
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Bounded (strip) aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a constant rate
One well pumped at a variable rate
Several wells pumped at a variable rate
Point source
Aquifer of infinite extent and thickness
One well pumped at a constant rate
Several wells pumped at a constant rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Linear source
Aquifer of infinite extent and thickness
One well pumped at a constant rate
Several wells pumped at a variable rate
Semiinfinite aquifer
Recharge boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundary
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded aquifer
Recharge boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
No-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Recharge and no-flow boundaries
One well pumped at a constant rate
Several wells pumped at a variable rate
Unconfined aquifer
Aquifer of infinite lateral extent
One well pumped at a constant rate
Bounded aquifers. Several wells pumped at a variable rate
Pumping
Leaky aquifer
Constant level in the adjacent aquifer
Infinite leaky aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Bounded leaky aquifer. Several wells pumped at a variable rate
Pumping
Alternating water level in the adjacent aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Conceptual scheme accounting for aquitard storage
One well pumped at a constant rate
Several wells pumped at a variable rate
Leaky aquifer anisitropic on the vertical plane
One well pumped at a constant rate
Several wells pumped at a variable rate
Two-layer aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Stratified aquifer systems
Three-layer aquifer system
One well pumped at a constant rate
Two-layer aquifer system
One well pumped at a constant rate
Arealy heterogeneous aquifer
One well pumped at a constant rate
Several wells pumped at a variable rate
Pumping near river
One well pumped at a constant rate
Several wells pumped at a variable rate
Sloping aquifer
One well pumped at a constant rate
Fracture-porous media
Moench’s solutions
Vertical fracture
Horizontal fracture
Constant-head test
One well pumped at a constant drawdown
Slug test
Cooper's solution, Picking's solution
Bouwer-Rice's solution
Hvorslev's solutions
AMWELLS
Starting a new model
Modeling environment
Model size and dimensions
Plot scale
Model boundaries
Wells and time measurements
Well system design
Variable production rate
Model parameters
Hydrograph
Piezometric head and drawdown maps
Plot
Distance measure tool
Background maps
Model grid mode
Classes for map
Trace selected range
Animation
3-D View and animation
Plot profiles
Export to ANSDIMAT
Wellhead Protection Areas (WHPA)
Pit dewatering
Pit layout
Dewatering by abstraction wells
Dewatering by in-pit sumps
Pit Inflow
Model
Model creation
Model editing
Graphic editor
Modify values
Parameter selection
Plot construction
Grouping
Measuring distance
Legend creation
Heterogeneity zones (MODFE)
Generate the model grid (MODFE)
Generate the model grid (RADFLOW)
Input parameters
Entering the pumping well
Running MODFE program
Calculation parameters
Time parameters
Running RADFLOW program
Calculation parameters
Viewing results (postprocessor)
Load calculation results
Animation

AMWELLS

AMWELLS is an analytical tool for design of water supply and dewatering borefields as well as planning of aquifer tests.

 

The module can also be used for groundwater resources determination, delineation of well catchments and wellhead protection areas (WHPA).

 

Various hydrogeological conditions and borefield layouts can be modelled.

 

For operational borefield design, AMWELLS will help to optimize:

·quantity of pumping and monitoring wells,

·pumping rates, and

·well locations.

 

AMWELLS can predict piezometric head drawdowns during the planning stage of an aquifer test. The results will assist in selecting:

·optimal distances between pumping and observation wells, and

·test production rates.

 

Borefield layouts can be assigned either manually or automatically. Automatic set up of a borefield is based on layouts of various geometry (i.e. linear, rectangular, polygon) or their combination.

 

Production and monitoring wells may penetrate one or several horizons with possible accounting for partial penetration.

 

Modelling results are presented in tabular and graphical formats with 2D and 3D animation of transient aquifer piezometry if required.

 

Production well catchments and wellhead protection areas (WHPA) are calculated using a particle tracking method for most of the hydrogeological conditions and borefield layouts.

 

AMWELLS applies the following solutions for typical aquifer types and boundary conditions:

1) Confined aquifer, fully penetrating production well:

·Infinite extent aquifer;

·One straight areal boundary with assigned prescribed head or prescribed flux;

·Bounded (strip) aquifer with assigned prescribed head or/and prescribed flux (superposition principle); and

·Anisotropic aquifer of infinite areal extent

2) Confined aquifer, partially penetrating production well, profile anisotropy:

·Infinite extent aquifer;

·One straight areal boundary with assigned prescribed head or prescribed flux; and

·Bounded (strip) aquifer with assigned prescribed head or/and prescribed flux.

3) Unconfined aquifer, partially penetrating production well, profile anisotropy:

·Infinite extent aquifer;

·One straight areal boundary with assigned prescribed head or prescribed flux; and

·Bounded (strip) aquifer with assigned prescribed head or/and prescribed flux.

4) Leaky aquifer with constant hydraulic head in an adjacent aquifer (no aquitard storage):

·Infinite extent aquifer;

·One straight areal boundary with assigned prescribed head or prescribed flux;

·Bounded (strip) aquifer with assigned prescribed head or/and prescribed flux; and

·Anisotropic aquifer of infinite areal extent

5) Leaky aquifer, partially penetrating production well, profile anisotropy;

6) Leaky aquifer with variable hydraulic head in adjacent aquifer (no aquitard storage, for drawdown in the main aquifer and for drawdown in the adjacent aquifer)

7) Leaky aquifer with constant hydraulic head in adjacent aquifer and with aquitard storage (drawdown in the main aquifer and drawdown in the adjacent aquifer);

8) Leaky aquifer with variable hydraulic head in adjacent aquifer and with aquitard storage (drawdown in the main aquifer and drawdown in the adjacent aquifer);

9) Three-layer aquifer system:

·aquifer system is over- or underlain by aquifer with constant water levels;

·aquifer system is over- and underlain by aquifer with constant water levels;

·aquifer system is over- and underlain by aquicludes;

10) Two-layer aquifer system:

·aquifer system is over- or underlain by aquifer with constant water levels;

·aquifer system is over- and underlain by aquicludes;

11) Two-layer unconfined aquifer;

12) Aquifer with areal heterogeneity;

13) Limited aquifer -pumping near river.

 

In solutions (2) and (3), drawdown is determined for a piezometer at a specified depth. AMWELLS applies the same solutions for depth-averaged drawdown in observation wells.