Page 56 - Open-Hole Log Analysis and Formation Evaluation

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PRIMARY
Pad
TEXTURES

Limestone

PARTICLES
| y11t1|
The
[As]
[<7]
(undifferentiated)
as
Se]
[o_o]
LE]
[ES]
*Use
Chert
texture
aoe Oolites
Fossils
Gravel
Arkosic
Anhydrite
Bentonite
and
DEPOSITIONAL
Chert (dark)
Mudstone
(light)
Packstone
Grainstone
or
Feldspathic
Boundstone
Wackestone
sand
appropriate
particle
sand
symbols
Gypsum
Reprinted
rock
for
(undifferentiated)
Type
Dolomitic
(undifferentiated)*
Limestone
overlays
Pay
of
color
.
symbol
designated
appropriate
chert
for
shown
in
CARBONATE
by permission
matrix
below
should
MISCELLANEOUS
symbols.
margin
designations)
be
can
by
Lithologic:
of the
be
ROCK
Recommended Practice,” 2nd ed.,
ROCK
component
used
Dec.
Dolomite

bral
TYPES
Calcareous
with

TYPES

ae
eoees
AA
any
Heal
oe
C
DIAGENETICALLY
1983.
AoA
L
surrounding
of
MISCELLANEOUS
Coal
Lithic
these
Chaiky
Arkosic
Lignite
Sucrosic
ALTERED
pebbles,
Pelletoids
Crystalline
Lithociasts
Potassium
basic
Feldspathic
Conglomerate
salt
“Hydrocarbon
sandstone
cobbles
sandstone
or
patterns
Dolomite
77
sandstone
(undifferentiated)
boulders.
(undifferentiated)*
Well Logging

[~A_]
STREAKS

CEMENTS
INTERBEDS
wD
Obl sandstone Quartz COMPONENTS MODIFYING Siltstone designations) for color Shale (See symbois [| Clay (See of rock two letters types Specific rock ROCK TYPES SILICICLASTIC Cross Sections Columnar and be used for Stratigraphic intrusive To +7*.* | Symbols White Black and LK | Extrusive LITHOLOGY SYMBOLS USED TO DES
Use
AND
Anhydrite
fronstone
CONCRETIONS
ferruginous
AND
[==] Argillaceous
Anhydritic

“AA |
xz |
AND
same
or other
material
LENSES
Anhydritic
Po
ve
Calcareous

symbols
Argillaceous
Carbonaceous

NODULES
as
[=] Calcite
-
for
INTERCALATIONS
[= =| Calcareous
x] fc] Pal : ~~ - SECONDARY name in center be can IGNEOUS MUD LOGGING
wD
( designated AND
streaks
i! v| Silty Salt hoppers sandy Slightly Micaceous Sandy = | Dolomitic Very sandy Cherty ‘ COMPONENTS column. of lithic first and/or inserting symbols by using Pyroclastic Metamorphic Aff | ROCKS METAMORPHIC
Calcareous
Phosphatic
% |
.
[7 2 |
and
Chert
lenses
Dolomitic
Cherty

enclosed
Do]
Fs)
within

Sideritic b
or Siliceous
RT
ee
Sandy
ey
Dolomite
above
symbols.
|

Quartz

SPWLA from