Geoscience Reference
In-Depth Information
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
3.0
2.5
2.0
1.5
1.0
0.5
20
25
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45
50
Stock-Tank Oil Gravity, °API
Labedi
Standing/Witte
Standing/Witte/McCain-Hill
Standing
Ahmed (Eq. 4-32)
Fig. 3-16. Average relative errors and average absolute relative errors of subsets of the data
described in t
able 3
-14
so
rted
on stock
-tank
o
il
gr
avity
s
how th
e q
uality
of
s
elected correlatio
n
equat
ions
for esti
mating r
eservoir oil
d
ensities
at
b
ubblepoint p
ressure
a
cross the full range of
thi
s
i
ndependent
variable
.
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