With this feature...
Do this...
map factor
Click or type to zoom or unzoom the map inset.
long radius
Click or type to change the drainage area. This change is overwritten if you click Oil, 80 acres or gas, 640 acres below.
long radius to short radius ratio
Drag to make the drainage shape elliptical. This change is overwritten if you click Oil, 80 acres or gas, 640 acres below.
degree of tilt
Drag to rotate your ellipsis defined above on its axis so it runs parallel to the channel trend.
liquids recovery 
gas recovery
Drag to change the percentage of liquids and gas recovered to change the balance between initial reserves and cumulative production.
NPT Phi Sw Depth
Type customized calculation factors or click Reset Petrophysics from Log to accept those already defined in the well log.
use depth to calculate Bo or Bg
Clear to type a custom Bo volume factor.
Bg Calculator
With use depth to calculate Bo or Bg cleared above and Dry Gas and Condensate selected below, click to display the Bg Calculator dialog box and temporarily change the default calculation parameters. AccuX default values repopulate Bg Calculator boxes when you close the dialog box.
Oil, 80 acres gas, 640 acres
Click to select a default circular shape for the drainage area. The long radius and long radius to short radius ratio values change if you click either of these buttons.
oil and solution gas dry gas and condensate
Select the Method to display in the adjacent report.
Copy to Clipboard
Click to copy an image of the current Drain
Shape dialog box that you can paste into other applications
by selecting Paste Special
> Enhanced Metafile.