Page 37 - Open-Hole Log Analysis and Formation Evaluation
P. 37
22
I.
Type
Often
When
FIGURE
Curves
Names
Generic
Purpose:
&
Operating
Company.
run:
1A.6
Limitations:
of tool:
CALIPER
name
METHODS
API Gamma Ray Unite
combined
recorded:
OF
principle:
of log:
with:
abbreviations:
Fast
CNL,
GATHERING
Open
$n for
Density,
or
Requires
Measures
Compensated Neutron
CNT
some
formation
neutrons
Compensated
Log.
cased
gamma
FORMATION
ray,
hole
selected
liquid-filled
Radioactivity/porosity
neutron
Courtesy
thermalized
hole
caliper
porosity/lithology
by
lithology
EVALUATION
a
hydrogen
DATA
atoms
in
Halliburton
23
1.
When
Curves
Names
FIGURE
Generic
Purpose:
&
Operating
run:
14.7
Limitations:
GAMMA
Type of tool:
Oiameter In,
name
API-Gamma Ray Units
FORMATION
Often‘combined
recorded:
principle:
of log:
with:
Sonic Log.
abbreviations:
At
EVALUATION
of
BHC,
Some
Open
Sonic
Courtesy
Caliper
Measures
Measures
Induction,
hole
formation
SP,
acoustic
WELEX,
Sonic/porosity
OVERVIEW
hole-size
travel
a
GR
At formation
faZr,
log
WELEX,
porosity,
MICROSECONDS PEA
:
time-df
TRAVEL TIME FT.
limitations
lithology
Halliburton
depending
compressional
Company.
on
waves
value
in
