| Global Options - Units and Discounting |  |
The following section of the options are global settings (apply to any projects loaded), and are specific to a user account. From the menu select Tools - Options
Unit System
You can switch between Metric and Imperial (Oilfield units). Pressing and holding "Alt-U" within WellSpring will also switch the units.
Unit Scale
Large units will allow you to work and report in mmcf/day and thousands of barrels. Also currency will be reported in millions of dollars as the base unit. You can switch between Normal and Large at any time.
Time Value of Money
Your discount factors on any reports are set here. Also the discount method.
Discounting method includes both monthly and Annual.
Discount factors are 1/(1+r)^n Where r is the fractional discount rate, and n is the period.
End period discounting n=0 to n-1 periods
Mid period n=1/2 to n-1/2 periods.
Beginning period n=1 to n periods.