Page 41 - Open-Hole Log Analysis and Formation Evaluation

°
26
Lee mado doe
FELD
170
ATUAUTH NO.
RELATIVE
1
DEVIATION
to
rd
ORIENTATION
BEARING.
FROM MAGNETIC NORTH
LOG
ELECTRODE
I.
messy
Type
FOCUSED
When
Often
TRACE OF
Curves
Names
FIGURE
Generic
Purpose:
&
Operating
run:
PAD No. 2
TRACE
Limitations:
OF
14.10
of tool:
METHODS
name
FAD
CORRELATION
recorded:
OF
No.3
principle:
CURVES
of log:
combined with:
DIAMETER OF HOLE IN INCHES,
abbreviations:
CAUPER
Dipmeter.

4
2
4
xan
Cepin
SP,

GATHERING

Hole
Does

Lf
ft
Open
4-arm
‘
GR
Relative
Azimuth
caliper
curves
wor
Measures
Dipmeter
Resistivity
hole
MAGNETIC DECLINATION

correlation
:
1 |
FAR e—
20"
r
deviation
COMPUTED
of Pad
curves
dipmeter,
bearing
268
231
158
103
38
141
n3
ia
35
32
70
1000

123
ios
176
207
306
ne

ot
1
47s
not perform
FORMATION
independent pad

curves

formation
ant

True Dip Angie
Courtesy Dresser Atlas,
1
HDT,
LOG

GRAPHIC
well
3200"
one ame

dip,

a

in

Goope—~
50°60"
ow
“3
70°
79
63
80
73
23
a5
wv
”
«o
40
SHDT
30
35
22
20
a
30
25

AND ANGLES OF DIP
en degrees
electrodes
80"
detects
EVALUATION
$0"
PRESENTATION
correlation/orientation
ser.
77
119.2
100
3732
173.2
aaa
1428
2748
100.9
oil-based
40.4
dea
Ma
wa
700
039
486
ars
as
|
__exceuente—~
record
res
DATA
©
VERTICAL DISPLACEMENT FOR VARIOUS HORIZONTAL DISTANCES
1000
fractures
Dresser Industries,
i
muds .
o

Inc.
S280
1st

one mute

Teo! Angie

; |
| |
wd

EEE

Jond Direction|
UT
30°
correlation

27

1.

Type
Often

When
FIGURE
Curves
Names
Generic
Purpose:
&
Operating
run:
Limitations:
1A.11
of tool:
name
recorded:
principle:
of log:
combined with:
abbreviations:
SP
To
CST
FORMATION EVALUATION
in
for
Open
Limited
Sidewall
Recovery
Auxiliary
Explosive
hole
Sidewall Sampler Tool.
retrieve
hole
Percussion
SP
formation
depth
report
core
OVERVIEW
number
charge
sampler
curve
samples
control
only,
cutter -
propels
of the
for

hollow
depth
Tool
Courtesy Schlumberger
formation
Sidewalt
of cotes ( typically 30)
control
cylinder
per
into
trip
Well Services.

Sampler