Page 363 - Advanced Mine Ventilation

Economics of Coal Mine Degasification 337

($) 82,492,347.83 69,559,682.42 58,650,033.70 49,451,942.21 41,695,934.73 NPV.
NPV positive
higher
($) a
Revenue 94,866,200 91,992,680 89,199,370 86,491,756 83,865,418 indicating so

Net or
30 years

($) for
Costs produce will

Financial 17,708,160 17,177,664 16,661,976 16,162,108 15,677,246 wells

but these
($) million,
Costs $331
Operating 2,025,000 2,025,000 2,025,000 2,025,000 2,025,000 of investment

Wells ($) initial the
Vertical Revenue 184,460,000 178,934,000 173,562,250 168,355,300 163,304,650 than

for less bit
a is
(NPV) which
Value (MMCF) million

Present Gas Production $302 is

Net Total 36,892.8 35,786.8 34,712.45 33,671.06 32,660.93 5 years
20.6 for NPV
Table Year 1 2 3 4 5 Total