Page 162 - Open-Hole Log Analysis and Formation Evaluation

y Extent = Vertical Water Porosity U. METHODS 148
FIGURE

8.2

Oil-in-Place
are , S, Saturation = | | = ¢ |
a ’
\
a) \ 4 OF ANALYSIS AND APPLICATION
LY ee mel Porosity = ¢ Volume = V OF RESULTS
Ce
(Generalized Reservoir

Unit).
Water Saturation

=
Sy
ee we ee

So
The
trap.
Once
=
extent
nurhber
Lb
A.
far we
RESERVE
such
total
have
oil-in-place
a
have
Although
the
conversion
SPU-S)b
of stock
HCPV
been
point
constant
this
values
point.
of
I i mathematically, is equal to product summation is in terms of bbl/acre-ft, An even more mathematical gas is well be gas, but none oil-in-place is used rather since the recalculate available and the mapped area changes, it calculated directly. If, subsequently, new If the area of the reservoir show a expressed plication and use of the numbers found. I
in
in
of
ESTIMATES
5¢X(1-S,)
number
for
HCPV of 10
of HCPV with
is
the
fi,
of view
any
summed,
generalized
oil-in-place.
of
tank barrels
course
only discussed
bbl/acre
this
dependent
laxly
meter
is
XbxXA
oil-in-place
It
the
same
is
respect
that
the
when
on
to
to
generated
sum
can
the
method
may be
proposed
well,
it
hectare
should
be
known,
the volume
depth
may
net
the
units
can
reserves
be
be

fundamental,
the
and
pay
be
is
expressions
(m’/ha)
the
a
recovered
substituted
which
of expressing
noted
of
used
requires
is
hydrocarbon
is
for
the
to
from

change
simple
two
thickness
that
of hydrocarbon
bottom
information
¢
oil.
oil-in-place
HCPV
in
b
called
could
(1
the
such
-
line
or
unitless.
a
from
for:
may
may
is
found
ce
matter
units
S,,)
be
becomes
be
term
to
This,
the
of
equally
trap.
the
extrapolate
areal
#
ina
additional
’ as 77,578 bbl/acre.. for example, log data flexibility in the ap-. chosen. simple expedient of a expressed HCPV values for all expressed as a volume times / and is therefore quantity A. Thus, the the reservoir content OIP will be expressed area oil-in-place (OIP), ‘an value contains oil. Ata HCPV = 0.3(1 - 0.4) example, if por