Cross Section Module

The cross section module displays a profile view of a selected set of wells, generally with some combination of wire line log data, formation tops, and completion data. Cross sections demonstrate structural or stratigraphic relationships, and illustrate reservoir attributes. Two cross sections can be created and displayed simultaneously in Petra.

To open the cross section module:

Main module toolbar: Cross sectionbuttons (1 and 2)
Main module:Tools > Cross Section
Map module: Cross Section > Switch to Cross Section

Basics

Selecting wells for the cross section

Changing spacing between wells

Setting a depth range

Cross section quick start tool

Custom tool bar

Logs and Tops

Displaying digital logs

Displaying raster logs

Displaying formation tops

Correlating formation tops

Adding a correlation slip box

Annotations and Data Posting

Posting well data around the well symbols

Adding annotations, images, and faults with the overlay

Plotting perfs, tests, cores, and shows

Plotting interval data

Advanced Tools

Using unassigned tops

Adding a color fill between digital logs

Adding a grid profile

Shortcuts and Key Definitions

Task	Shortcut Key(s)
Highlight a well	Single click on the well's depth track with the left mouse button.
Display well information	Single click on the well's depth track with the right mouse button.
Show data for selected well in main module	Double-click on the well's depth track with the left mouse button
Set a well's top value to null when correlating tops	Delete key
Terminating interactive processes like screen drawing or zooming	ESC key
Skip to next graphic element during screen draw	Space Bar
Drop last point picked while drawing an overlay line	Delete key
Drop last well picked while picking wells for a cross-section	Delete key
Delete selected overlay items	Trashcan icon on toolbar.
Scroll map during zoom mode	Shift + Arrow Keys.