Log Crossplot Selecting Wells

 

Selecting Wells

The Log Crossplot module can display any subset of wells in the project.  To change the wells shown, select Wells> from the menu bar at the top of the Log Cross plot module

All Wells

Selects all wells in the project

Wells By Data Criteria

Opens the Wells by data criteria tool that selects wells by specific data criteria

Map Selected Wells

Selects the wells currently selected in the Map module

Main Selected Wells

Selects the wells currently selected in the Main module

Cross-Section Wells

Selects the wells currently selected in the Cross Section module

To switch between wells, select either the desired well on the dropdown at the top of the Log Crossplot Module or use the left and right arrows to scroll through the selected wells.

Plot Single/Combine All Wells

Petra can either plot the log crossplot data points from a single well or from multiple wells in aggregate.  To switch between these two modes, select Wells>Plot Single Well and Wells>Combine All Wells.  Note that showing multiple wells will remove the curves displayed on the right side of the screen – after all, with data points from multiple wells, which curves would you show?

 

By default, data points from all wells are shown the same color.  To color code different wells by different colors, select the “Use Different Symbol Color When Combining Wells” on the General tab of the Log Cross Plot Data Definition screen available from Logs>Axes and Scales on the menu bar at the top of the screen.  Note that this color coding only uses ten distinct colors; plotting more than ten wells will recycle colors.