New Mexico Bureau of Mines & Mineral Resources
Socorro, NM 87801
NEWMEXICO
Information: ~05/835.5420
Publications: 505/835-5410
A DIVISION OF
INSTITUTE OF MINING & TECHNOLOGY
July 20, 1981
MEMO
TO :
Frank E. Kottlowski,Director
FROM :
Sam Thompson 111, Petroleum Geologist
SUBJECT: Open-file report no. OF-149
As we discussed, the following report from GeoChem
Laboratories, Incis to be placed in the Bureau Open-File:
OF-149 Hydrocarbon source-rock evaluation study,
Cockrell Corp. No.1 Coyote State well,
Grant County, New Mexico, by L.-:Paul-Tybor,
GeoChem Laboratories, Inc.,1981, 17p.
(including 3p. text, 7 tables, 6 charts)
xc: Mike R. Smith, GeoChem
Robert A . Bieberman, Subsurface Library
Robert W. Kelley, Editor
An Equal Opportunity/Affimative Action Institution
GEOCHEMICAL ANALYSES
SOURCE ROCK EVALUATION
CRUDE OIL CHARACTERIZATION
GEOCHEMICAL PROSPECTING
CRUDE OIL-SOURCE ROCK CORRELATION
-
1143 C SRITTMORE ROAD
HOUSTON,TEXAS 77043
7131467-7011
J u l y1 0 ,
Mr. Sam Thompson 111
New MexicoBureau
of Mines &
Mineral Resources
Socorro, New Mexico 87801 .
1981
.
Dear Mr. Thompson:
Enclosedpleasefindtheresultsoftheorganicgeochemicalanalysesperformed
on t h i r t y - s e v e n( 3 7 )w e l lc u t t i n g ss a m p l e s
from theCockrell
Corp. No. 1 Coyote
S t a t e (1132-14) well,locatedinGrantCounty,
New Mexico.
Upon A r r i v a l a t GeoChem thesamples werelogged
i n under GeoChem J o b Number
2058,followed
by t h e sample s e q u e n t i a l number -001 t o -037, and submittedto
thefollowinggeochemicalanalytical
program:
Table
Type of Analysis
Totalorganiccarbondeterminationandbrieflithological
description
..........................
P y r o l y s i s ............................
I
I1
C15+ s o x h l e te x t r a c t i o n ,
d e a s p h a l t e n i n g , + l i q u i d chromatographic separation
................... I11
C15+ paraffin-naphthene
chromatography
....................... I V ;
Visual kerogen assessment ............ V
V i t r i n i t e r e f l e c t a n c e a n a l y s i s ....... V I ;
gas chromatograms
Histograms
Mr. Sam Thompson I11
-2-
1 0 ,J u l y
1981
DISCUSSION OF THE RESULTS
A.
Thermal MaturityofSediments
The Paleozoicsedimentsanalyzed
from t h i sw e l lr a n g ei nt h e r m a lm a t u r i t y
from a moderatelymatureMaturationIndexStage
2 t o 2 t a t 2140t feet,
w i t h i n t h e Mojado Formation, t o a matureMaturatyonIndex
Stage-3- t o 3 . a t
83ROt f e e t , w i t h i n t h e Bliss Formation.
-
A t t h e s el e v e l so ft h e r m a lm a t u r a t i o n ,t h e s eP a l e o z o i cr o c k sa r ec o n s i d e r e d
t o be w i t h i n t h e o i l
window, w h e r e i n s i g n i f i c a n t q u a n t i t i e s
of o i l and
associatedgascouldhavebeengenerated,providedthesesedimentscontain
s u f f i c i e n t q u a n t i t i e s ' of o i l - p r o n e o r g a n i c m a t t e r t y p e .
W i t h i nt h i sw e l li n t e r v a lt h e r ea r e
zoneswhichhavebeen
l o c a l l ya f f e c t e d
by t h ei n t r u s i o n si nt h i sa r e a
of t h eb a s i n .
Where t h i sh a so c c u r r e dt h e
thermalmaturityoftheintrudedsedimentsrapidlyincreasestoseverely
a l t e r e dl e v e l s .T h i s
i s thecaseforsample
2052-021, wheretheinterpreted
i s a s e v e r e l y a l t e r e d 4 . 1 0 % Ro
indigenousvitrinitereflectancepopulation
(TableVI).
These severelyalteredsedimentscouldhavegenerateddrygas.
However, t h es e v e r e l ya l t e r e dn a t u r e
of sediments, due toigneous
i n t r u s i o n s , i s normally a l o c a le v e n t whichdoesnotgreatlyaffectthe
regionalmaturationprofile
ofsedimentswithin
a basin.
The o v e r a l l m a t u r e m a t u r a t i o n p r o f i l e i n t e r p r e t a t i o n
of thesediments from
t h i s w e l l i s based on t h e orange-brown t o brown c o l o r a t i o n of thekerogen
i s o l a t e d from thesesamples(Table
V).
B.
HydrocarbonSourceCharacterization
of Sediments
The o n l ys t r a t i g r a p h i cu n i t ,a n a l y z e d
from t h i s w e l l , which h a sf a v o r a b l e
h y d r o c a r b o ns o u r c ec h a r a c t e r i s t i c s
i s theCretaceous Mojado formation.This
formation i s c h a r a c t e r i z e da s a m o d e r a t e l ym a t u r e ,p o o ro i l ,f a i rt o
good
T h i s r a t i n g p e r t a i n s mainly t o t h e lower h a l f of t h i sf o r m a t i o n
gassource.
where f a i r t o good amounts(Table
I ) of gas-proneorganicmatter(Table
IV)
wereanalyzed.
The poor o i ls o u r c ec h a r a c t e r
of t h i su n i t
i s i n d i c a t e d by
t h e low amountsof
C15+ t o t a l bitumen(221
ppm avg.;Table111)
and
t o t a lh y d r o c a r b o n (119 ppm avg.;Table111).
The v e r yl e a n amounts of f r e e
hydrocarbonyield (SI; 0.13; Table11) and remaininghydrocarbon
11) a l s o r e f l e c t t h e
poor o i l
g e n e r a t i n gp o t e n t i a l
(S2;0.33;Table
g e n e r a t i n g c a p a b i l i t y of thesesediments.
Mr. Sam Thompson 111
-3-
The r e s t o f t h e s t r a t i g r a p h i c u n i t s p e n e t r a t e d
with poor hydrocarbon source characteristics.
Should you haveany
questionsconcerningthe
may be o f f u r t h e rs e r v i c e ,p l e a s ef e e lf r e e
J u l y 10, 1981
by t h i s w e l l a r e o r g a n i c - l e a n
r e s u l t s of t h ea n a l y s e s ,
t oc o n t a c t me.
or i f we
Sincerely,
Paul Tybor
L/
GEOCHEM LABORATORIES, INC.
st
Enclosures
SUMMARY TABLE I
I
Organic
s1
AGE
Stratlgrapblc
Unit
Lilhology
U-Bar
Residual H.C.
Yleld
(me/p)
WAN
WAN
-
( 5 )
(2)
(10)
(10)
(1)
119
0.33
221
W;H;-
-2 to
2+ 4.10
0.91
(1)
(1)
(1)
( i)
(2)
0.01
28e
0.01
87
T o k i H.C.
(mdg)
(ppd
WAN
-
HEAN
WAN
(23)
(5)
(2)
1.00
0.13
6400- Limestone, '
(4 )
7100
light
brown
gray;
mediumto
0.26
Shale(? Mojado~
cavings).
Mudsrone.olive
17906400
gray;
Shale,
gray.
dark
7100Ilell-to-finish 7240
'
WAN
lithology:
Varied
( 1)
Shale,Limestone.O.36
Hacuricy
-
H.C.'s
.
Thermal Predominant
Kerogen
Kerogen
Bitumen
Visual
cis+
Assessmenr
Carbon
( l o f rock)
CRETACEOUS
Mojado
52
c +
Vicrinlcc
Alceracion n e f l e c c u w
(1-5 Scala1 (Xbl
Organic
Free
Top
(Feet)
Richness
nla nla
' nla nla
(PP)
-
WAN
WAN
'
n
(I)*
Z+u
Hydroccrboo
Souru
('13
Douncial
u
n
( 5 )
EIaderately
mature.
poor oil, fair to
426 source.
gas
goad
( 1)
nla
497
W;H;Am
2
(1)
W;-;H
(1)
2
n/a
(2)
poor
( Mature.
2 ) nla
2+ to ?-
nla
to 2+
Moderately
mature,
poor hydrocarbon
saurce.
.
nlaModeratelymature,
poor hydrocarbon
source.
ORDOVICIAN
Montoya
El
light
Paso
72407720'
Dolomite,brownnla (nla
4)
ish gray.
0.03
nla
nla
77208360
,brownDolomite
nla( 5nla nla nla
ish
gray;Limestone,
medium
to brownish gray.
Am;-;(3) (3)
hydrocarbon source.
poor
Mature,
n/a nla
hydrocarbon source.
Am(A1);-;-
e-estimated
-3- ti
*
3
reflectance
due
High
igneous intrusions.
Lo
local
Table I
SCREEN
ANALYSIS
SUMMARY
We1 1
Interval
(Feet)
Brief Lithological
Description
2058-001
1950-1 960
Mudstone, grayish olive.
0.21
2058-002
2140-2150
Composite:mudstone g r a y i s h o l i v e and
s h a l e , brownishblack.
1.34
2058-003
2330-2340
Mudstone, grayish olive.
0.34
2058-004
2480-2490
Composite:mudstoneand
2058-005
2560-2570
Mudstone, olive gray.
0.20; 0.21R
2058-006
2660-2670
Mudstone, ol i ve gray.
0.23
2058-007
2990-3000
Mudstone, 01 i ve gray.
0.23
2058-008
3220-3230
Composite:mudstoneand
shale.
0.33
2058-009
3310-3320
Composite:mudstoneand
shale.
0.41
2058-010
3560-3570
Composite:mudstoneand
shale.
0.59
2058-01 1
3730-3740
Shale, medium g r a y t o medium dark gray,
0.80
2058-012
3970-3980
Composite,mudstoneandshale.
0.27
2058-013
4100-4110
Composite,mudstoneandshale.
0.42
2058-01 4
4300-431 0
Composite:mudstoneand
2058-015
4400-441 0
Shale, medium darkgray.
0.71
2058-016
4490-4500
Shale, medium dark gray t o darkgray.
0.74; 0.77R
2058-017
4730-4740
Composite: s h a l e andmudstone.
0.62
2058-018
5080-5090
Shale, medium dark gray to dari gray.
0.66
2058-01 9
5160-5170
Shale, medium dark gray to dark gray.
1.17
2058-020
5250-5260
Composite: s h a l e and mudstone.
0.72
2058-021
5620-5630
Shale, dark gray to grayish black.
9.98
2058-022
5800-581 6
Shale, dark gray.
1.43
2058-023
6070-6080
Shale, medium dark gray t o dark gray.
0.56
GeoChem
Sample
Number
shale.
shale.
TotalOrganic
Carbon
( X of Rock)
0.38
0.76
Table I
SCREEN
ANALYSIS
SUMMARY
GeoChem
Sample
Number
We1 1
Interval
(Feet)
Brief Lithological Description
2058-024
6400-6410
Composite: shale and limestone.
0.46
2058-025
6490-6500
Composite: shale and limestone.
0.40
2058-026
6810-6820
Limestone, l i g h t brown.
0.05
2058-027
7080-7090
Limestone, medium gray.
0.14
2058-028
7120-7130
Composite, shale and quartz and limestone.
0.36
2058-029
7290-7300
Dolomite, brownish gray.
0.03
2058-030
7430-7440
Dolomite, brownish gray.
0.03; 0.03R
2058-031
7530-7540
Dolomite, brownish gray.
0.04
2058-032
7670-7680
Dolomite, brownishgray.
0.04
2058-033
7880-7890
Dolomite,, brownish gray.
0.05
2058-034
7980-7990
Limestone, brownish gray.
0.05
2058-035
81 30-8140
Dolomite, brownish gray.
0.07
2058-036
8220-8230
Limestone, medium l i g h t gray t o brownish gray.
0.04
2058-037
8370-8380
Composite: 1imestone and dolomite.
0.02
TotalOrganic
Carbon
(% of Rock)
PAGE
1
OF
1
T.O.C.
PAGE
st
s2
s3
Sl+S2
2140
2058-002
2058-011
2058-014
4300
2058-019
2058-022
2058-024
-5160 -
2150
3740
4310
5170
5800
5810
6400 0.016410 0.01
1.34
3730
-
,
0 .eo
0.76
1.17
1.43
0.46
0.40
0.10
0.10
0.06
0.21
0.17
1 .oo
0.21 0.27
0.02
0.00
0.40
0.14
0.17
0.10
0.11
0.09
PYROLYSIS
0.50
1.10
0.23
0.17
0.02
=
Residual hydrocarbon potential
(mg HC/g of rock)
= CO2 produced from kerogen pyrolysis
( m g C O U g of rock)
i Genetic hydrocarbon potential
( m g HC/g of rock)
Hydrogen
Index
= mg HC/g organiccarbon
Oxygen
Index
mg CO2/g organic carbon
Sl/Sl+S2 = Transformation r a t i o
Tmax
= TemperatureIndex,degrees
TABLE I1
RESULTS OF ROCK-EVAL
= Totalorganiccarbon,
Ut. X
= Freehvdrocarbons. . mu_HC/K- of rock
30
125
28
2
0
2
30
18
22
9
8
20
433
0.20
0.09
0.22
0.91
1 .oo
0.50
C.
44 1
430
436
392
497
Table 111
Summary of C15+ SoxhletExtraction,Oeasphaltening
and Liquid ChromaLcgraphy
A. Weights of Extracts
GeoChem
Sample
Number
and Chromatographic Fractions
Well I n t e r v a l
Precipitated
Weight
Total of
Rock Extd. Extract
(grams)
(grams)
(grams)
(grams)
(grams)
2058-019
0.0223
0.0059
0.0282
5100
100.0-5230
2058-022
5650 -5900
0.0102
0.0059
0.0161
100.0
6740 -6430
100.0
2058-024
E. Concentration of Extracted
2058-019
282
5100 -5230
2058-022
5650 -5900
2058-0246340-6430
N-C5
ParaffinsEluted
Noneluted
Naphthenes
Aromatics
NS'S
NSO'S
(grams)
(grams)
(grams)
(grams)
Asphaltenes
Soluble
Sulfur
0.0087
N.D.0.0014
0.0033
0.0067
0.0109
N.D. 0.0014
0.0025
0.0018
0.0045
N.D.
N.O.
0.0057
0.0030
N.D.
N.D.
N.O.
Haterials i n Rock
109
45
67
1814
-
161
87
14176
63
-
--
.
33
25
-
106
59
59
30
-
-
-
98
C. Composition of Extracts
GeoChem
Sample
Number
-5230 5100
2058-019
2058-022
2058-024
------------Nonhydrccarbons------------
--------Hydrocarbons-------ParaffinNaphthene Aromatic
Well I n t e r v a l
1.63
23.8
5650-5900
6340-6430
S
I
Eluted
Sulfur NYYS
NSO'S
PNlArom
38.7 1.66
62.4
1.26
20.9
0.64
39.111.2 1.51 2.50
36.6
28.0
-
-
-
S
S
--
11.7
15.5
5.0
8.7
-
Noneluted
Precipitd.
Asphaltene
S
I
-
34.5
AsphlNSD
HC'S
S
-
-
HClNon HC
-
Table IV-A
Saturate Hydrocarbon Analyses
Summary of Paraffin-Naphthene Distribution
CeoChem
Sample
I
I
I
NumberWellIntervalParaffinIsoprenoidNaphtheneIndex
-5230
2058-019
5100
80.2
2058-022
5650 -5900
2058-024
6340
-6430
2.4
17.4
24.4
28.0
5 -6
c-P
A
ip19/ip20
1.04
1.03
1.04
70.O
c-P
Index B
1.89
1.61
1.34
1.13
1.7 1.04 70.4
1.11
Table IV-B
Saturate Hydrocarbon Analyses
Normalized Paraffin Distribution
GeoChem
sample
I
I
I
I
I
~
I
I
~
I
I
I
I
I
I
I
~
I
I
I
I
I
Number Well Interval nC15 nC16 nC17 ip19 nC18 ip20 nC19 nC20 nC21 nC22 nC23 nC24 nC25 nC26 nC27 nC28 nC29 nC30 nC31 nC32 nC33 nC34 nC35
2058-019
5100
-5230
2058-022
5650 -5900
2058-024
6340 -6430
7.2 121.20.8
1.55.151.191.5
0.2 53.5.2
0.2.30
8.1
8.3 22.3.40.56.2.62.56.4.1.2.43
11.7 7.1
2.4
1.7
7.1
5.0
45.9.1
5.5121.191.078..31
6.6
7.3
6.6
5.3
4.0
3.0
6.3
2.12.4
53.2.31.70.70.4.82
1.3
0.7
1.0
0.05.4
00..5
34
0.1
0.1
0.1
0.1
0.1
0.0
0.1
I
Table VI
VlTRlNlTE
REFLECTANCE
GEOCHEM
SAMPLE
NUMBER
rwE
NUMBER
OF
POPULATION
OF
SAMPLE
READINGS
DEPTH
(faat)
3740205810il
CIG
56302058-021
CIG
4.81
0.128(1) 0.51 14 0.68
(2)
18
28
(3)
1.34
1.76
0.360(1) 1.36
3.49(2)
5.46
(3)
4 1.71
54
5.46
2
SUMMARY
MINIMUM
MAXIMUM
REFLECTANCE REFLECTANCE
[
Rol
0.32
0.80.91
0
1.10
I
O/!
Ro 1
MEAN
REFLECTANCE
I
RaI
1.05
STO. OEV.
I a,/ Ra 1
0.085
0.194
0.96
4.10
5.45
0.317
-
RFUARKS
GEOCHEM
NO.
2058-011
TYPE OF SAMPLE:
CLIENT'S NAME
NEW MEXICO BUREAU OF MINES
COCKRELI. #1 COYGTE S
T
m
WELL
NAME
(NO. OF READINGS = 60) 0.320.350.370.380.420.430.480.530.590.620.630.640.650.68
0.80 0.81 0.81 0.810.83
0.83 0.84 0.85 0.900.930.930.940.960.970.98
1.10 1.ll 1.ll 1.161.161.201.201.201.211.221.231.241.241.251.251.281.321.39
1.391.431.501.531.571.601.621.651.661.76
POPULATION
NO. OF READINGS
0.51 (1)
(2)
1.10 (3)
0.68
14
181.05
28
MIN. RO ( % )
0.32
0.80
1.00
MAX. RO I%) MEAN Ro(%L
0.91
241
1
3 4
STD. DEV. lo&
1.051.05
REMARKS
0.128
0.085
0.194
C - CAVE C I X " ~ T 1 0 N
X - INDIGENOUS POPULATION
0 REclcLED -POPULATION ( S)
21
6
NO. 3740
/SAMPLE
DEPTH
CIY;
X
X
X
c
c
xx
xxx
0
0
0
0
0
0,
VITRINITE
REFLECTANCE HISTOGRAM
GEOCHEM NO.
2058-021
TYPE OF SAMPLE:
CLIENT'S NAME
NEWMEXICOBUREAUOFMTNES
/SAMPLE
DEPTH
(7iy;
NAME
WELL
NO. 5630
#1
QXKREXL
(No.OF READINGS = 60) 0.961.151.611.713.493.503.523.543.583.683.77
3.83.85
3.86
3.87
3.92
3.93.94
3.95
3.96
3.99
4.03
4.04.06
4.06
4.07
4.11
4.11
4.11
4.134.134.144.144.154.184.19.4.194.21.4.234.234.284.344.364.424.424.444.45
4.44
5.44
6.54
1.54
3.54
9.64.74
5.85
1.45.46
POPULATION
NO.
(1)
(2)
5.46 (3)
OF READINGS
MIN.
4
544.81
5.462
Ro ( %).
0.96
3.49
5.45
MAX. RO (%)
1.710.360
(IIyoTE
STATE
3-80 3.803.81
MEAN
STD. DE\!
Ro(O&
1.36
4.10
%1
REMARKS
0.317
-
- CAVE CI"INAT10N
- INDIGENOUS POPULATION
0 POPULATION(S)
24!
21
C
co
X
w
a
is
I&
0
VlTRlNlTE
REFLECTANCE HISTOGRAM
16
17
18
19
20
15
21
22
23
I’
25
I
I
I
j
i
i
I
26
2058-024
6400'-6410'
21
27
I"
2058 -022
17
a
5800'
21
2G
29
- 5810'
17
I
!
!
16
:
i
I
!
2058-019
!
5160'-5170'
1
!
21
22
23
15
24
I
25
P
34