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 =