Configuring deviation analysis alerts

On the Deviation analysis tab of the Settings window, you can configure alert generation based on the deviation of the measured liquid flow rate from the values calculated by the virtual flow meter.

Important

Deviation analysis alerts can be generated only if the Virtual flow meter setting is enabled. For details, see Well Settings Window. For details on alerts, see Alerts.

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The tab is divided into two subtabs:

• Default: Configuration of default alert settings, i.e. settings that are applied to all wells if not overridden by custom well settings.

• Custom: Configuration of custom alert settings, i.e. settings that are configured for specific wells and override default settings.

  Note

  Custom alert settings can also be configured from the Wells tab. For details, see Configuring General Well Settings.

On this tab, you can perform the following actions:

• Configure default alerts for all wells

• Configure custom alerts

• Edit custom alerts

Configuring Default Deviation Analysis Alerts#

To configure default parameters of alert generation based on deviation analysis, perform the following actions:

1. On the Deviation analysis tab, on the Default subtab, turn on the Deviation analysis option. Below, a list of the alert parameters appears.

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2. Set the desired parameter values:

   • Alert trigger threshold: Maximum allowable deviation of the most recent measured liquid flow rate from the value calculated by the virtual flow meter.

   • Alert processing time: Duration of the time period after which, if no user action is taken, alerts are automatically archived. For details, see Archive.

   • Measurement validity: Duration of the time period during which liquid flow rate measurements are considered valid after they are received. Once this period expires, alerts are no longer generated until a valid measurement is received.

   • Calculate DFL: If this check box is selected, the well dynamic fluid level value is calculated. In this case, calculations that involve this parameter use the calculated value instead of the value received via integration.

3. (Optional) To revert parameters to the values predefined in the system, to the right of the modified parameter value, click Restore default value ( ).

To disable deviation analysis by default, turn off the corresponding option on the Deviation analysis tab.

Important

Default parameters do not override those configured for specific wells or well groups. To apply default parameters to a well, first you need to reset custom parameters configured in the well settings. For details, see Configuring Deviation Analysis Alerts.

Configuring Custom Deviation Analysis Alerts#

To configure parameters of alert generation based on deviation analysis, perform the following actions:

1. On the Deviation analysis tab, go to the Custom subtab. If for some wells custom parameters are already configured, a table with a list of them is displayed. If not, the subtab is empty.

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2. Depending on whether there already are custom parameters configured, perform one of the following actions:

   • If there are no previously configured parameters, in the central part of the subtab, click Add ( ).

   • If there are previously configured parameters, at the top of the table with a list of wells, click Add ( ).

The Custom well settings opens.

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3. In the window that opens, select check boxes of the wells for which you want to configure custom alert parameters.

   Note

   You can find a well by its name. To do this, at the top of the window, in the Search field, enter the well name or a part of it.

4. (Optional) To hide unselected wells in the table, at the top of the window, turn on the Show only selected option.

5. (Optional) If by default the Deviation analysis option in the lower part of the window is disabled, turn it on. Below, a list of the alert parameters appears. If custom parameters are already configured for some of the selected wells, a warning is displayed below.

6. Modify the desired alert parameters:

   • Alert trigger threshold: Maximum allowable deviation of the most recent measured liquid flow rate from the value calculated by the virtual flow meter.

   • Alert processing time: Duration of the time period after which, if no user action is taken, alerts are automatically archived. For details, see Archive.

   • Measurement validity: Duration of the time period during which liquid flow rate measurements are considered valid after they are received. Once this period expires, alerts are no longer generated until a valid measurement is received.

   • Calculate DFL: If this check box is selected, the well dynamic fluid level value is calculated. In this case, calculations that involve this parameter use the calculated value instead of the value received via integration.

7. (Optional) To revert parameters to their default values, click Restore default value ( ) to the right of the value.

8. At the bottom of the window, click Add. Selected wells with modified parameter values appear in the table.

9. In the upper-right corner of the Custom subtab, click Save.

For details on how to edit or delete custom alert parameters, see below.

Editing Custom Deviation Analysis Alerts#

To edit custom deviation analysis alerts, perform the following actions:

1. On the Deviation analysis tab, go to the Custom subtab. A table with a list of wells with configured parameters is displayed.

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2. In the row of the desired well, click the current parameter configuration in the rightmost column of the table. A window with the alert parameters opens.

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3. Make the desired changes:

   • To enable or disable deviation analysis alerts for the well, turn on or off the Deviation analysis option at the top of the window.

   • To modify parameter values, edit the desired values. For details on available parameters, see above.

4. At the bottom of the window, click Apply.

   Note

   To edit custom alert parameters for multiple wells at the same time, follow the configuration procedure described above and replace the existing parameter values with the new ones.

5. (Optional) To delete custom alert parameters for a well, select the corresponding check box in the leftmost column of the table, and then click Delete ( ) at the top of the table.

6. In the upper-right corner of the Custom subtab, click Save.