Assuming volumetric behavior

Reference no: EM13147238

The â??Mâ?? sand is a small gas reservoir with initial bottom-hole pressure of 3200 psia and bottom-hole temperature of 220 ^oF. It is desired to inventory the gas in place at three production intervals. The pressure-production history and gas volume factor in cubic feet per standard condition of 14.7 psia and 60 ^oF are as follows:

Pressure Cumulative Gas Production Gas Formation Volume Factor

(psia) (MMSCF) (cu-ft/SCF)

3200 0 0.0052622

2925 79 0.0057004

2525 221 0.0065311

2125 452 0.0077360

(a) Calculate the initial gas in place using production data at the end of each of the production intervals, assuming volumetric behavior.

(b) Explain why the calculations of part (a) indicate a water drive

Reference no: EM13147238

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