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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

Analytical module operation > Diagnostic plot > Rate plot >

Stepwise rate approximation

 "Rate steps" dialog box allows to make stepwise approximation of variable rate.

 The dialog box is launched from "Tools > Rate steps" menu or by right mouse click in the lower left corner of the Q – t plot field.

 Rate steps are specified in the tab "Rate steps" automatically ( push "Auto" button) or graphically (by two intersecting lines, that appear when the tabbed dialog is launched). Both auto- and graphically produced data can be manually corrected.

 

       

Tabbed dialog "Rate steps".

 

Explanatory table

"Steps" tab


Specify steps of rate variation


"Number" column

The step serial number

"Time" column

Time of rate step end in days. The first step time must be more than zero. The last step must be more or equal to the maximal test time.

SHIFT + mouse click launches the dialog for converting time from hours, minutes and seconds to days.

CTRL + mouse click launches the information dialog for time conversion from different units

"Rate" column

Constant rate value during a rate step in cub. m per day.

SHIFT + mouse click launches the dialog for converting rate from cub. meters or litters per hour, minute or second to cub. meters per day.

CTRL + mouse click launches the information dialog for rate conversion from different units

"Pumping well" combo box

Choose pumping well for stepwise rate approximation. Wells displayed in the rate plot are listed

"Number of steps" text box

Number of rate steps in the chosen well (not exceeding 999)

Tab "Options"


Options for displaying plot and loading data


"Line" frame

Appearance of the rate-approximating line

 "Width" text box

Line width

 "Color" button

Choose colour of the line

"Redraw" option

Redraw or not the rate plot as the new rate approximation is displayed (push "OK" or "Apply" buttons)

"Range in one step"  text box

Specify range of rate values for one rate step in auto approximation (see "Auto" button). Default value is zero, any rate variation thus producing a separate rate step

"Pumping well load number" text box

If rate approximation data ("Load" button) is loaded from the other project (dqstep.at file) the well number of the data source should be specified

"Clear" button


Renew plot. Lines of rate approximation are removed from the plot

"Auto" button


Intelligence system for auto stepwise rate approximation. Pumping well rate measurements are analyzed by the program and the version of rate approximation proposed. To decrease the number of steps, increase the "Range in one step". Auto approximation can be corrected manually

"Save" button


Save input data in the required format. Create or substitute the dqstep.at file

"Load" button


Load file (dqstep.at) from the other project and substitute rate approximation data for the selected well.

If the well number specified in the "Option" tab exceeds those included in the file selected, the warning message will be generated

 

Graphical input of stepwise rate approximation dialog box.

 

Explanatory table for rate approximation graphical input

LEFT, RIGHT

Go to the next measurement

UP, DOWN

Go to the next pumping well

SHIFT + LEFT,

SHIFT + RIGHT

Free movement within the plot

"1"

Twice decrease the step width

"2"

Twice increase the step width

"3"

Return to the initial step width

Mouse click in the plot field

Jump to the nearest measurement for the selected pumping well

SHIFT + mouse click in the plot field

Free movement along the plot

ENTER

Input selected time and rate to the table in the "Rate steps" tabbed dialog

Double mouse click

CTRL + ENTER

Input selected measurement to the table in the "Rate steps" tabbed dialog

ESC

Escape from the stepwise rate approximation mode

 

Time and rate are input to the current line of the table in "Rate step" tabbed dialog, then the next line is selected automatically. To input data in a certain line of the table put cursor there and push ENTER button.