Page 29 - Open-Hole Log Analysis and Formation Evaluation
P. 29
Signal
Sensor
FIGURE
1.2
Ultra
Sonic
Pulsed
Natural
a
Conditioner |
Reservoir
Density
Spectral
Formation
Neutron
Inelastic
Borehole
Dipmeter
Dielectric
long
Formation
|
[a
and
Microfocused
.
Mud
(2)
gamma
neutron
gamma
(acoustic)
Porosity-Lithology
tester
gamma
Components
spacing
Geometry
ray
ray
Mudcake
gravimeter
Productivity
lithologic
| .
:
electric
Indicators
'
|
~
Indicators
Tape
density
Depth
£0
(microresistivity)
Filtrate
Indicators
Invasion
Deck)
of a Logging System.
Measurement
Formation
ndisturbe
“Print
<
Analog
End
Log
_
Product
Tape
Digital
A
_
and
a
:
rents
These
FIGURE
mation
mation.
electric
3
tools are:
1.3
Induction
important,
initials
-along with
Induction
Caliper
basic
discussion
do
logs)
4
tools
one
log
such
Omitted
Logging
Spontaneous
resistivity.
not
or
Tools
and
as:
devices
of each
in the formation.
5
rate
from
belong
They
of
Terms.
will
Several
as
to
some
the
another
the
potential
produced
the
work
list
Curves
(SP)
answer
basic
by...
of the
separate
are
like
‘standard
:
log
90%
basic
tools
tools
mine
Induction logs are
. 2b] Via Cable Transmission : Y A Log B Log Log A * (Panel) (Camera or C ~ Conditioner Device }—r (Reproduction) Surface Signal Recording Logging Survey EVALUATION OVERVIEW 11 1. FORMATION EVALUATION DATA I. METHODS OF GATHERING FORMATION 10
various
ho
6.7
of the
resistivity-tool
tools.
rope,
since
auxiliary
. _ 1 C ~
follows.
types
they
detectors
called by a
of
8
Among
by
questions
devices
old
Wo
family and
“TTT
always
-F---|--4 -~
those
logs
about
which,
logging
inducing
measure
the
(such
Il
Sensors
tool
..eeeeeeeeeeeee multiple sensor
ru
cur-
variety ofnames
for-
for-
while
as
piggy-back
auxiliary