Installing WellSim

Tutorial: Getting familiar with WellSim

This first tutorial introduces you to WellSim.

WellSim's names

Now, learn what these names mean:


The file on the hard disk where WellSim stores its well data. You can create new databases, and we suggest you store data for the wells in each geothermal field in a separate database read more.


All data in WellSim relates to a particular well; WellSim can have data for many wells read more.

Data type

WellSim uses several different types of data for a well, for example discharge simulations and measured discharge profiles read more. You can not make new data types.

Data set

A data set is a set of data of a particular data type, for example a discharge simulation at 50 t/hr or a measured discharge profile at 100 t/hr. You can create any number of data sets of each data type. You can not change the kinds of data that are stored in a data set.


The units available for the program to use read more. These include the SI system (m, kg, Pa/m ...), units from other standard sets (Metric, Imperial), unusual or customary units (fathom, degrees R, leos ...) as well as abstract units (numeric, alphanumeric, none ...).

Unit type

The physical properties or quantities in the program that have units read more. For example, Temperature is a unit type that can have units of deg C, deg F, deg R or K. Every unit type is assigned a unit, which you can change.


An item of data in a data set, or a column in a table of data, which might be displayed, printed, imported or exported read more. You cannot add new fields to a data set or a table. Every field has a unit type, and initially has the unit that is currently assigned to that unit type. Later, you can specify the unit of each field independently.

The field name and unit is usually displayed or printed near the field. For example, when you are editing a discharge simulation:


A curve on a graph displayed by WellSim's graph module; a graph can have one or many series read more.

Opening the sample database

WellSim comes with a built-in database, called the sample database, which we will use in these tutorials. Read more about databases.

Run WellSim and double click the sample database. WellSim opens its home window.

If you have changed to a different database, then for these tutorials, open the sample database like this:

Introduction to units

For more on units see here.

Organising your units

WellSim has four default unit sets: SI, Company, Imperial and Metric. To use the tutorials in this help guide, load the Metric unit set:

  1. Click Tools in the menu bar.

  2. Click Unit Preferences.

  3. Click the UnitTypes tab.

  4. Click the Sets dropdown list (at the foot of the tab) and click Metric:


  5. And now change the default drawdown factor precision (number of digits after the decimal point) from 2 to 3:

    Scroll down to Diff Pressure / Flow and change Precision from 2 to 3.

  6. Click .


WellSim's home window

  1. The home window is displayed after you open a database.

    • The left window shows the wells that are in WellSim's database.
    • The right window shows a well's summary information.
  2. You can change how the list of wells in the database is sorted:

    If Well sort shows a wellhead, then the list of wells in the database is sorted by time (the value of Modified). Click Well sort to sort by well name.

    If Well sort shows a clock, then the list of wells in the database is sorted by well name. Click Well sort to sort by time (the value of Modified).

  3. Select well RK5:

    • either click the in front of
    • or double click

    The left window now shows WellSim's data types for a well. Click Discharge simulations:

    The right window has two parts:

    • The top shows the discharge simulations in the sample database for well RK5, one discharge simulation per line. Scroll up and down this window to see other discharge simulations for the well. Click a discharge simulation to select it.
    • The bottom shows the downwell data for the selected discharge simulation. Scroll up and down this window to see data at other depths.
  4. Click the tab to display the downwell data as a graph:

  5. Click the tab to display these details as a table of figures again.

WellSim's data types

WellSim has these data types for a well. Note that some are optional, and you may not need to enter them for a well:

Exiting WellSim

To exit WellSim:

Return to WellSim's home window. Then: