ORIGINAL GAS IN PLACE: VOLUMETRIC RESERVOIR - P/Z Method
OGIP By The P/Z Method
INPUT DATA
Title
#
Cumulative gas
produced
Reservoir
pressure
Z
P/Z
(MMscf)
(psi)
 
(psi) 
1
0
0.889
2021.8
2
0.893
1881.6
3
0.898
1715.2
4
0.902
1582.3
5
0.907
1472.3
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Gas gravity
(air=1)
Reservoir temperature
°F
Abandonment pressure
psi
RESULTS & GRAPH
DETERMINATION OF OGIP BY THE P/Z METHOD
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