Width and margins

Cross section: Scales > Width and Margins

The cross section size options tool sets the cross section width, margins, and well spacing.

Width tab

The Width tab determines how wells are spaced on the cross section.

Set Width	Sets the total width of the cross section from the left well symbol to the right well symbol. This option is only available for the "Relative to Well XY Locations (between Well Symbols)", "Relative to Well XY Locations (Between Tracks)", and "Constant Distance Between Well Smbols (in Inches)" spacing options. Deviated wells may be wider than the specified length if any bore hole deviates beyond the left or rightmost well.
Set Distance Btwn Wells	Sets the distance between well symbols or track edges. This option is only available when the "constant distance" spacing modes are selected.
Auto size single well cross section	Displays single well cross section in the center of the cross section. In more detail, this option automatically sets the cross section length to 1.0 inches when there is only 1 well selected.
Well Spacing Mode	Determine how wells are positioned along the cross section.
Relative to Well XY Location (Between Well Symbols)	Spaces out the wells on the cross section proportional to their distances between one another. With this option, Petra plots this data relative to the well symbol, so closely spaced wells on the cross section can overplot
Relative to Well XY Location (Between Tracks)	Spaces out the wells on the cross section proportional to their distances between one another. With this option, Petra plots this data relative to the edges of the well tracks, so closely spaced wells will not overplot.
Constant Distance Between Well Symbols (in Inches)	Sets a constant distance between different well symbols. With multiple log tracks, well data can overprint.
Constant Distance Between Well Track Edges (In Inches)	Sets a constant distance between well track edges. This prevents well data from overposting, but can make it more difficult to visualize structural changes between wells.

Margins tab

The Margins leave blank space around the cross section. Margins are measured in inches.

Show Margins on Screen

Draws a dashed box on the screen to show the extents of the margins. Overlay items not inside this box will not plot.

Misc tab

The Misc tab controls additional options to draw and rescale the cross section.

Screen Scroll Percentage	Controls how the the screen shifts when the scroll arrows are selected. The range is the percentage of the screen that remains - the default value of .75 scrolls 75% of the screen so that only 25% of the original screen remains.
Horiz Scale Text Size	Sets the size of the horizontal scale text.
Overpost Resolution	Sets the upper limits for Petra overpost resolution function.
Section End Labels	Label the left and right side of the cross-section with annotations, such as, A and A'.
Do Not Plot Border	Prevents Petra from drawing the border around the cross section.
Do Not Plot Heading Title	Prevents Petra from drawing the heading title on the top of the cross-section.
Angle for Deviated Borehole Projection of Single Well Display	Angle (in degrees) of a plane-of-projection for "single well" cross-sections. It controls the direction the deviated borehole deflects away from the well location.