Gas Reserves
INPUTS	Use feet and acres Use meters and hectares
	Directions: This program makes a straightforward volume calculation for recoverable gas. Pay attention to the units: if you enter the pay zone thickness in meters and the drainage area in hectares then the gas recovery will be given in cubic meters per hectare*meter and the reserve in cubic meters. If you use feet and acres, then the gas recovery will be in Mcf (thousand cubic feet) per acre*foot, and the reserve in billions of cubic feet.
	%Porosity =
	%Water saturation =
	Enter the gas FVF as an inverse, i.e.- 160 instead of .00625 Gas Formation volume factor, Bg =
	%Recovery factor =
	Thickness of pay =
	Drainage area =
RESULTS	Average recovery =
	Recoverable reserve =