Page 39 - Open-Hole Log Analysis and Formation Evaluation

i
Type
Often
When
Curves
FIGURE
Names
Purpose:
&
Operating
run:
14.8
Limitations:
Generic name
of tool:
Mb LEOUS
OF
recorded:
principle:
of log:
combined with:
abbreviations:
GR
GATHERING
GR
Gamma Ray Log.
Any
None
Open
Gamma
and
gamma
Sand/shale
all
ray
Scintillation
Courtesy
cased
FORMATION
open-
hole.
detector
Radioactivity/litholo,
ray activity
ao
Boo
WELEX,
and
:
discriminator
EVALUATION
cased-hole
oe
a Halliburton
DATA
measures natural
tools
Company.
formation

25
or
1.
Type
When
Often
Names
Curves
FIGURE
Generic
TOTAL
Purpose:
&
Operating
run:
Industries,
Limitations:
1A.9
of tool:
name
FORMATION
Inc.
COUNTS
combined
of
recorded:
principle:
log:
Gamma
‘with:
DEPTH
abbreviations:

Ray
EVALUATION
Slow
Total
Open
Gamma
Gamma
Measure
or
Potassium
Uranium
Thorium
source
Spectral
Potassium
Spectralog,
K,
ray
ray
formation
counts
logging
COUNTS
|:
Log.
cased
Ur,
0
OVERVIEW
Uranium
NGT
Neutron-density
PER
and
energy
478% Per CD
spectral
speed
hole
of gamma
Th
248 PPM
Radioactivity/lithology
log
rays
MINUTE
Courtesy
:
—$—<—_s
1
Per CD
spectrum
714
PPM
PerGo
Dresser
concentrations
in
Atlas,
characterizes

Dresser