New
Mexico Bureau Mines
and Mineral
Open File ReportNo. 273
Resources
HYDROCARBON SOURCE-ROCK ANALYSES.
AMOCO PRODUCTION COMPANY NO. 1 BAKER'WELL,
QUAY COUNTY, NEW MEXICO
By GeoChem Laboratories, Inc.
and Chevron U.S.A., Inc.
1987
QEOCH,'?MlCAL ANALYSES
ROCK
CHARACTER'ZATION
CRUDE OIL
CRUDE OIL-SOURCE ROCK CORRELATION
SOURCE
PI1OSPEPTINQ
DTWHeM lABORATORle.9. INC.
14007-H EAST FASTER AVENUE
.
Mr. SteveJacobson
CHEVRON. USA, INC.
700 S. ColoradoBlvd.,
Denver, CO 80201
Dear
MF.
ENGLEW00Q.CQLQRhDQ EO111
PHONE (303)8*3-0220
20 J a n u a r y 1984
Box 599
Jacobson:
on t h e
P l e a s ef i n de n c l o s e dt h er e s u l t so ft h eg e o c h e m i c a ls c r e e n i n ga n a l y s i s
f o u r ( A ) samples a s you r e q u e s t e d .
Your r e f e r e n c e numbersand well name f o r t h e s e s a m p l e s a r e l i s t e d
t h e c o r r e s p o n d i n g GeoChem Jobandsamplenumbers.
Amoco P r o d u c t i B
o na k e r s
...
zk9k3QL.
GeoChem Job No. D1123-001
P4420-5
6400'-6500'
-002
-003
-004
-6
-7
-a
7100'-7200'
7700'-7800'
8050'-8100'
"
.Q???.C.O,.,,.&
If YOU s h o u l d h a v e a n y q u e s t i o n s c o n c e r n i n g t h i s a n a l y s i s , p l e a s e
hesitate to call us.
Sincerely,
T e c h n i c a l Manager
RWP :pkn
Enclosure
..
belo-q w i t h
do n43t
I
Amoco Production Baker 111
29-9N-30E
Quay Co.,
NM
RESULTS OF TOTAL ORGANIC CARBON
GEOCHEn
SAMPLE
NUMBER
CLIENT
IDENTIFICATION
NUMBER
D1123-001
Depth0.84
6400'-6500'
D1123-002
Depth 7100'-7200'
1.21
[ b y -
D1123-003
Depth 7700'-7800'
1-67
54,--4
D1123-004
8050'-8100'
Depth
TOTAL ORGANIC
CARBON
(% of Rock)
A bo
6.5616.59
%dh
ProductionBsksr
29-9N-30E
Quay C o . . NU
Amucu
T.O.C.
81
SI
52
53
Hydrogen
Index
Oxygen
Index
PI
Tmax
RESULTS OF ROCK-EVAL PYROLYSIS
*:
1
44597.5
1.67
0.26
8.78
0:74
p,
D1123-001
Depth 6400'-6500'
Dl 123-002
Depth 7100'-7200'
01123-003
Depth 7700'-7800' 25.1
D l 123-004
Detph 8050'-8100'
1.17
i
332
442
0.29
0.260.56
0.65
0.20
0.80
0.40
1 . 6 3 0.14
0.42
3.90
0.33
0.20
0.08
---
--
Total o r g a n i c carbon, v t . X
Free hydrocarbons. mg HCIg of rc
Residual
hydrocarbon
potential
(mg HC/g of rock)
CO2 produced from k e r o gpeynr o l )
(mg C021g of rock)
mg HClg o r g a n icca r b o n
mg CO2/g organic
carbon
SllSl
52
Temperature
Index,
degrees
+
C.
0.84
77.5
66.
1.97
1.21
66.0
33.
26.22
6.58
133.4
5.
GEOCOM ROCK E V A L I 1
J H N I S 9 1984
T I ME= 1442
I V = 23 0 0 1
F I D AT TENUATION=
TCD HT TENUATIUN=
!
4
32
50%
350
1
1
TOC = 6.84
U T = 99.4
TIIHX = 332 DEGREES C
t2.532E-01 SUM= +1.902E+03
52= t6.511.E-81 SUM= +4.704E+03
c - t5.555E-01
SUM= +7.391E+03
7
UNKNOLIN
I
I
96%
1
I
!
550
!
JAN 13,1334
TIME= 1 5 1 1
I D = 23602
F I D FITTENUATION=
T C D ATTENUATION=
GEOCOM ROCK EVAL I 1
S
32
I
TOC = 1 . 2 1
WT = 1 9 . 4
T t k = i i 0 DEGREES C
"
SUM= +1.455E+03
52= +7.991E-01 SUM= +5.773E+03
53= t4.64'3E-01 SUM= +5.683E+63
ur.4 K N 0 w N
51= t2.814E-61
1
_"""""""""""""""""""""""""""""""""""""""-
I
!
902
550
!
GEOCOM RUCK EVFIL 1.1
!AN 189 1984
r IrlE= 1540
I D = 23063
F I D HTTENUATION=
rCD ATTENUATION=
16
32
oi:
1e0
!
!
!
50%
350
I
I
!
I
I
I
9 0 i;
550
!
CiEUCOll ROCK EVAL I 1
IFID HTTENUATION= 128
T C U ATTENUHTION= 32
../.
108
If
I
I
I
!
56%
356
I
I
I
!
I
96%
558
!
GEbCOH ROCK EVHL I 1
' H N 19, 1934
TIllE= 0721
"_ " _
GEPTH
081
ctw
063
QO4
52
SI
"
"
"
900.65
80.26
00.28
80.26
80.74
~
8
.
8
081.63
008.73
LEGEtdD
- = N E C H T I V ED H T A
* = S I G N A L > A/G L I M I T
+ = O R T A > COLUPlN L I P I I T
it = I N V R L I ' O
DHTRiRESULTS
" _5 3
TPlRX
013 ..56
01 ~
3 ., e 0
01a.
3 ..42
01 - 3 3
332
""_
""""""""""""~
. .
"
"
440
445
442
"_P I
"_
52/52
TUU
-""
0.29
01.:
e.28
91.1
83.:
26.:
a.
0.14
0.08
"
"
"
"
"
"
"
"
"
" _H I
1.
I.
6.
"_" " " "__
" _iri
BIOSTRATIGRAPHIC STUDY 01303
( A D D C I J D U ~)
LOCATION: Amoco)-aR
PROBLEM:
MOA, TAI and RoV analyses of four Pennsylvanian age wellcuttinp
samples for J.T. Jonas.
RESULTS:
Kerogen
TypeMOA
1 IT
Sample
No.
Depth
111
P4420-1
6300
-
400'
0
20
40
40
2
6600
-
700'
0
15
45
3
7500
- 600'
0
20
4
7800
-
0
20
900'
Organic
Submitted
Yield
IV m1/10 grm
%
RoVPge/J.T.Jonas
Trace
2.7
No plug. Wolfcamp?Penn.
40
Trace
2.7
No plug.
50
30
Trace
2.8-2.9
No plug.
40
40
Trace
2.7
No plug.
I,
It
,I
DISCUSSION:
MOA analysis of these samples by
S . C. Teerman - COFRC (re memo to
S . R.
Jacobson, 3 / 2 5 / 8 5 ) and J. D. Saxton indicate the organic matter in these semples
to be dominantly TypeI11 vitrinitic "gas prone" kerogen. This determination is
somewhat corroborated by pyrolysis results of four other samples within the samk
over-all well interval, in which HI values range from 66.0 to 133.4 indicating
gas proneness (i.e., 0-150).
This degree of corroboration became necessary because
of the presence of agreat
deal of amorphous Type
111 ammp+me material which resembles Type
I1 "oil
prone" kerogen.
MM. d
~J
W D. .
w. THOMPSON/J.
SAXTON
t
s. c.
MWT:Uml
TEERMAN (COFRC)
~.. ...-
-
.
MEMORANDUM
Box 446
La Habra,
CA 90631
March 25, 1985
ANALYSIS AMOCO BAKER #I..
NM AND IDENTIFICATION OF
AMORPHOUS VITRINITE
d4 - q d - 30&
MOA
MR.
S. R. JACOBSON
Chevron-Central
Dear Steve:
'
Much of the amorphous fraction in the
&co four
baker #l
samples (P-4420) consists of vitrinitic organic matter
(OM).
However, some oil-prone amorphous
OM and degraded cutinite
also occur in these samples (approximately5-20%). This
observation is based on microscopic analysis
of sieved
are
transmitted light slides only. Geochemica1,data
necessary to confirm the microscopic classification
of
amorphous
organic
matter.
/#4NFr b*-L4mJ
3500- 7LOD
bboo- L h + f 7800- 7909
Identification of Amorphous Vitrinite
'
The following are some general comments and nricroscopic
to help identify amorphous
properties that can be used
vitrinite:
1:
Descending gradation of identifiable vitrinitic particles
to amorphous-like OM. Often, amorphous vitrinitic material
OM
will displaya transition between amorphous and structured
(Plates 1 and 2 ) . Vitrinitic particles that display
amorphous edges or "coatings" are often
a good clue that tke
of vegetal or
amorphous OM may be humic in origin. Remnants
woody structure (incompletely altered hum3.c
remains) in
amorphous-looking particles also suggest
a humic origino f
the OM (Plate 2 ) .
2. Appearance in reflected light. Amorphous vitrinite with
0.8% vitrinite reflectancewi1L
a maturity less than about
generally have higher "visual reflectivity" than oil-prone
amorphous OM. However, .with increasing maturity, the
OM. decreases;
hydrogen content of oil-prone amorphous
therefore, their reflectivity or ''gray level" increases an'l
in an
they developa more consolidated texture resulting
appearance similar to vitrinitic
OM. Vitrinitic remnantsin.
in
amorphous clumpsor particles are easier to recognize
reflected light. As shown in Plates
1 and 2. using a
transmitted li ht slide and alternating between transmittejl
and reflected ight can be very useful to help recognize
vitrinite remnants.
f
2
3 . Color of amorphous OM in transmitted light. In general,
humic amorphousOM will be a darker color (reddish brown
or
OM. This color difference
dark brown) compared to oil-prone
the edges of amorphous particles.
is especially evident at
However, this is
a subjective and maturation dependent
OM is somewhat dependent
property. The color of amorphous
enviroment,
upon theEh potential of the depositional
(Masran and Pockock, 1981). With increasing maturity, the
of amorphous
color differences between differtint types
kerogens become less distinctive.
4. Fluorescence of amorphousOM. Although the fluorescence
of oil-prone kerogens is often extremely weak,
can it
sometimes be used to help distinguish oi.1-prone and
vitrinitic (non-fluorescent) amorphousOM. Immature
oil-prone amorphous kerogens have
a positive fading effect
in
fluorescent
(increase
intensity with time of excitation),
help
be
u.sed
to
identify the oil-prone amorphous
which,can
kerogen. However, fluorescence is subjective and
also
maturation dependent ‘and
can not be used alone
t o distinguish
different typesof amorphous kerogens.
5. Texture. Oil-prone amorphous kerogenwi’ll sometimes
display a more crystalline or ‘!grainy” texture
in contrast to
amorphous vitrinite.
6. Other characteristics useful in detecting amorphous
vitrinite include: (a) evidence of fungal breakdown such as
(b) partial
woody remains permeated with fungal hyphae,
of exinitic
degradation, pitting, or patterned thinning
material, and (c) diagnostic microfossils, whFch provide
information on the depositional environment.
As stated
above, most these
of
microscopic properties that
can be used to identify amorphous vitrinite are subjective
and often difficult to detect.No single microscopic
is
property will provide
a conclusive answer. The problem
compounded with mature and post-mature samples. However,
by
piecing together as much information as possible
by using the
above criteriaa decision can often be made
on the typeof
amorphous OM. This decision needs to be confirmed with
geochemical analyses. I hope in the near future
to write a
of the
more complete description (with photomicrographs)
microscopic properties and identification
of amorphous humic
material.
S. C . TEERMAN
COFRC
SCT:
ez
Attach: Plates 1-2
cc wlattach:
L. C . Bonham
R. W. Jones
File-4th
REFERENCES
Masran, T. C. and Pockock, S., 1981. The classification of
plant-derived ,particulate organic matter
in sedimentary
J. (ed.).
Organic maturation
rocks. In: Brooks,
pp. 145-175.
studies and fossil fuel exploration,
Academic Press, New York.
PLATE 1
in transmitted
Figure 1. Amorphous vitrinitic particles
light (arrows). Note gradation of identifiable
amorphous-like organic
vitrinitic particles to
matter. 750X
Figure 2 .
Amorphous vitrinitic particle in reflected ligt-t.
Using transmitted light. Note themore vitrinitic
appearance of particles in reflected light.
Same field of view as Figure
1. 750X
PLATE 2
Figure 1. Amorphous'vitrinitic particle in transmitted
light. Note reddish-brown colorof particle
(arrow), which is transition between vitrinite and
amorphous. 750X
Figure 2 .
Amorphous vitrinitic particle
in reflected
(arrow).
Note vitrinite relic in particle
Same field of view
as Figure 1. 750X
light.
T.O.C.
Production Baker 8 1
-9N-30E
a y Co.. NH
SI
nco
s2
s3
Hydrogen
Index
Oxygen
lndex
PI
Tmax
RESULTS OF ROCK-EVAL PYROLYSIS
,7
0.26
0.65 ?%;.lrdY/0.56
0.29
0.20
0.807h&.40
445
0.26
1.63
442
0.74
8.78
123-001
Depth 6400'-6500'
332
123-002
Depth 7100'-7200'
440
123-003
Depth 770O'-780Ot'
123-004
Detph 8050'-8100'
3
.
?&
1.17
0.20
1.97
0.42
0.14
1.67
3.90
0.33
0.08
26.22)rd
----
*.
\ '
Total organic carbon. Y:.
Free hydrocarbons, mg IIC/g D
Residual hydrocarbon potentlal
(mg HClg of rock)
COZ produced from kerogen pyrolysis
(me CO2/g of rock)
mg RClg organic
carbon
mg COZ/g organic carbon
SllSl
52
Temperature Index, degrees C.
0.84
1.21
6.58
+
77.5
.7
66.1
66.0
33.5
97.5
25.0
133.4
5.1
7
I;
..
I
,
.
23
I)
TABLE 1
GEOCHEMICALPARAMETERS
DESCRIBINGSOURCE ROCK
GENERATIVEPOTENTIAL AND
LEVEL OF THEREIAL MATURATION
Poor
.
0-0.5
0.5-1
'
Fair
'
.
.
>lo
0-150
150-300,
>300
3 -5
>5
Maturation
PI
[ S l l (Sl+S2)
I
Tmax ( " C )
Ro ( % )
Oil "birthline"
-0.1
-435
-0.6
Oil "deadline"
'0.4
-460
-1.2
Gas
Gas and oil
Oil
.
5-10
S2lS3
0-3
HI:'t
Quality
-1
0-3
3 -5
1-2
>2
Good
Very G o o d
...
S2 (mp, H C / g rock)
TOC (wt.% )
Quantity
. . . ~ . ..- . ." ....
(mg H C I g Cor )
.-
*Hydrogen Index, assuming a level of thermal ma tura tion for the
organic matter equivalent to R = 0 . 6 x .
0
AMDCB BAKER HI
NEW MEXICO
P442B
F ICURE , 1
FIGURE 2
AMUCO HAKE3 # 1
NEW MEX I.CO
F'4420
75LC
I