Log display scale tab

The scale tab is primarily used to add logs to the cross section, and to set the logs' scales and position around the wellbore.  Note that changing the settings only applies to the highlighted log on the Selected Logs list.

Track

Specifies the position of the log relative to the depth axis. Refer to the "Tracks" tab to track details.

Label

Sets the header for the log curve.  By default, Petra will use the curve name.

Left Scale

Sets the log value for the left side of the log scale.

Right Scale

Sets the log value for the right side of the log scale.

Logarithmic Scale

Option plots the selected log with using a logarithmic scale.  The left and right scales should be entered as powers of 10 when using this option.  Note that anything with a "0" scale will disable the logarithmic option.

Disabled

Temporarily hides the log trace from the display.  Disabling a curve retains the settings.

Use Alias Logs

Uses log curve aliases  when the the selected curve is absent.  Disabling this option will force petra to only use the exact curve name.

Suppress Track Header

Hides the log curve headers at the top of each track.

Default Log Scale -

Set the left and right scales to the curve's default log scale.  Note that this is set on the Log Maintenance Tool or with the Save Default Scale button below.

Save Default Scale

Sets the log curve's default scale to the current settings on the Left and Right scale entries

Statistical Default Scale

Automatically fills in the left and right scale values using the statistical average from the logs of the current cross-section wells. Values are computed as 2 standard deviations from the mean. The logarithmic option is set if the minimum value is positive and the different of the maximum and minimum exceeds 500.