Page 165 - Open-Hole Log Analysis and Formation Evaluation

A
I.
the
ry
_
HCPV
=
Muskat
in
deduced
number
of
calculated
CX
theoretical
primary
RECOVERY
it
of
METHODS
54.9[b
from
#8.1
(1949)
is
°
data:
expressed
using
oil
The

band A.
(1
solution-gas-drive
means
ft,
is
=
a
the
the
logs.
or
and
studies
recovery
areal
FACTORS
Table
(SG)
by
gas
useful.
8.1
have
2bU-S,) !
determined
factor
extent
porosity
Among
type
following
CB
S,)/Bo]®
pt
to
of
been
empirical
reservoirs,
bbi/acre.
the
a
reservoirs.
of the
these,
by/ tte)”
Approximate
value
studies
equations
and
of reservoir
formation
a
work
of
OF ANALYSIS AND APPLICATION
published
for
stock
productive
SE (pi/
.of
is
respectively:
that
C for
the
water
the
tank
recovery
200
Dy)!
of historical
Poston
parameters
drive
water-drive
attempt,
factors
data,
formation
volumes
that
saturation
and
has
to
(1984)
Find
(WD)
may
can
either
mechanism,
be
relate
and
be
and
by
bed
metric
thus

= in stock-tank barrels. 2) reserves expressed in oil-in-place expressed in feet. p acres. reservoir 1.3. factor is oil formation volume to be 30%. The Recovery factor is assumed of 30%. 25%, of 20 thickness a formation that logs, From QUESTION both units English lists for used of units into account the system is a constant that takes where C xX
5 £2» Sy
Pa
°. For i “ 8.
Db;
= > 756
= ona
the
i 0.5 cp 1.25 250 md = .35% 20% I ‘following data: given the reservoir in a water-drive recovery the primary Calculate QUESTION #8.2 fractions. and S,, are and ¢ & is in darcys equations, both d= 0.1741. c = 0.3722, = b a pressure, = P» , pressure, at bubble-point Hop pressure, bubble-point factor at volume = oil formation By reservoirs, for
=
=
volume
volume
=
=
Because
1.5
750
2000
of
Oil
cp
FORMATION
of oil
psia
formation.
factor,
psia
0.0979,
0.1611,
41.82[6
B,.
The
viscosity
-
dissolved
bubble-point
It
VOLUME
recovered
is
gas
at
a
shrinkage
is
present
FACTORS
surface
in
is
function
oil
of
less
at
—
quantified
the
than
by
gas
the
reservoir
the
5,.)/Boo]®
oil
gravity,
volume

Ves
conditions,
of oil
‘the
formation
in
the