NMBMMR
Open-file Report 450
.
Hydrocarbon source racles
character of sediments
penetrated by the
0
Shell Oil Company, No. 1 Santa Fe well,
Sandoval County, New Mexico
(Spot NW NW Sec. 18; T13N;R3E)
Prepared for
Burlington Resources
Farmington, New Mexico
1998
HYDROCARBON SOURCE FACIES CHARACTER
OF SEDIMENTS PENETRATED BY THE
Shell Oil Company, No. I Santa Fe Well
Sandoval County, New Mexico
(Spot NW NW Sec. 18; T13N; R3E)
Prepared for:
BURLINGTON RESOURCES
Ms. Nanis Wallace
By:
GEOCHEM LABORATORIES, INC.
Geoffrey S. Bayliss
GEOCHEM JOB NUMBER4417
September, 1998
BURLINGTON RESOURCES
Shell Oil Company
#I Santa Fe Well
Sandoval County, New Mexico
GeoChem Job Number4417
HYDROCARBON SOURCE FACIES CHARACTER
OF SEDIMENTS PENETRATEDBY THE
Shell Oil Company, No. 1 Santa Fe Well
Sandoval County,New Mexico
(Spot NW NW Sec. 18; T13N; R3E)
This report documents the findings of a basic geochemical Hydrocarbon Source Facies
Oil Company, No. 1 Santa Fe Well,
Characterization of sediments penetratedbytheShell
Sandoval County, New Mexico(Spot NW NW Sec. 18; T13N; R3E).
INTRODUCTION
On August 19, 1998, GeoChem received from the New Mexico sample storage center at
Socorro, ten (IO) boxes of samplescontaining dried well cuttingssamples in m a i l brown
envelopes collected at ten (IO*) foot intervals from600f feet to 11,033 feetT.D.
GeoChem was also provided with an AMSTRAT (American Stratigraphic Company) litho
percent description log on which was provided the formation top information. This formation top
information is presented in Summary TableI.
Theworkauthorized
in thisstudyinvolvedthecollectionofapproximatelyforty(40)
samples as outlined in GeoChem's letter of recommendation and costs, August 6, 1998, over the
entire well section, 6001: feet to 11,033 feet T.D. This well had a complete suite of dried well
cuttings at essentially ten (
I
O
foot
) intervals in small brown envelopes. The well was assigned the
GeoChem Job Number 4417 with each sample identified by a suffix, -001 through -036A and B in
order of increasingdepth of penetration.
GeoChempersonnelselectedappropriatesamples
at spec.ific depthsbaseduponthe
visual examinationof the sample material cross referenced
with the litho percent log description.
Each sample selected was sieved to remove fines material (C20 mesh) and the cuttings
sample then visually examined and high graded by removal of any extraneous mud additive and
drilling contaminants. Iron was removed by magnet with loss of circulation material (mica, etc.)
removed by airblowing of the sample.
The analytical sample was then ground
to pass through200 mesh.
The analytical programcalled forthemeasurement
of Total OrganicCarboncontent
(TOC), Rock-Eva1 (R-E) pyrolysis, Visual Kerogen Assessmentof Organic Matter Type (OMT) and
Thermal Alteration rank (TAI) and Vitrinite Reflectance %Ro determination.
RESULTS AND DISCUSSION
RESULTS
Geolooic
A.
Zonation
TheAMSTRAT,stratigraphictopinformationcontained
in the litho percentlog
provided to GeoChem was used to break out the geologic zones of expiorationai interest.
These formation tops havebeen presented in Summary Table I and on ail Data Tables and
well profile Diagrams presenting the analytical
data discussed herein.
B.
Hvdrocarbon
Source
Character
of
Sediments
The hydrocarbon source data presented herein is summarized in Summary Table
II for each of the stratigraphic intervals penetrated by this well. In Summary Table 11, the
data reflects the minimum,maximumandmeanvalues
for each of theanalytical
parameters presented, Total Organic Carbon (TOC) content, S, volatile hydrocarbon, S,
generatable hydrocarbon, S, organic oxygen content, Hydrogen Index (HI), Oxygen Index
(01)and Thermal Alteration Index (TAI) and%Ro Vitrinite Reflectance measurements.
The results of the individualanalysesarealso
reported in Table i (Sample
identification, depth andTOCvalues),Tables
11-A and 11-B (Rock-Eva1 pyrolysis data
reportedas mgmlgram and ppm “I, respectively), Table l i l A and 111-8 (Visual Kerogen
Summary and Worksheet respectively) and Table (Vitrinite
IV
Reflectance %Ro Summary).
Rock-Eva1 (R-E) pyrograms are reproduced in AppendixI at the rear of this report and the
Vitrinite population histogramsare immediately behind TableIV.
DISCUSSION
,
The data presentationin this report has focused on displaying
the information in well profile
format or in diagram plotswhich address the inter-relationships between two(2) or more interactive
analytical parameters.
The Total Organic Carbon (TOC) dataand the Rock-Eva1 (R-E) data are presented in well
profile format in Figures I-A and 1-B (mgm/gram and ppm “lM)upon which is overlain the well
stratigraphy.Organiccarbonrichness,hydrocarbonrichness,hydrocarbongeneratingpotential,
organic facies oil versus gas character and thermal maturity rank can be readily appraised on this
one figure.
These data are also presented on GeoChem’s Hydrocarbon Source Richness Diagrams,
Figures 2-A, 2-8,2-C, 3-A, 3-8 and 3-C which shows the relationship between TOC andS,and S,
values for both carbonate and clastic rock types. These diagrams should be self-evident in terms
of the significancesof these data.
TheVisualKerogendata(OMTandTAI)providesinformation
on theorganicfacies
controls on oil and/or gas generation as well as determining the ievei of geothermal diagenesic
(time-temperature) attained by these sediments with increasing depth
of burial in this well. The
visual kerogen information is presented
in well profile format in Figure4 and also in GeoChem's Oil
Factor Diagram Figure5.
Using theseSummary Tables and Figures, one can evaluate the independent stratigraphic
hydrocarbon source facies characteristics each
for section.
Quaternan, Sediments f600f feet to 3.140f feet)
The Quaternary-age sediments, mostly representative ofan intermixed red bed (claystone)
and sandkilt sequence has only experienced an immature (TAI 1.4)geothermal diagenetic (timetemperature) history which is insufficient for any significant generation of oil liquids and/or gas to
have occurred.
The red beds contain little organic matter as is reflected in the low TOC values (average
0.28%). Surprisingly, the Rock-Eva1 (R-E) data does provide indications of fair to good yields of
both S, volatilehydrocarbon (320 ppm to 440 ppm,average 387 ppm) and S, generatabie
hydrocarbon (200 ppm to 390 ppm, average 323 ppm). Hydrogen Index (HI) (83to 216,average
130)and Oxygen Index(129to 222.average 171)indicate amore likely gassourcing character.
(S, and S,) could be indicative of the
It is possible that these observed hydrocarbon yields
infusion of these immature sediments with hydrocarbon migrating from deeper buried source or
reservoir sediments or couldbe contamination associated with the drilling and sample collection.
Quaternary-age sediments at this well location are consequentlyrated as a nonsource for
oil and/or associatedgas.
Cretaceous-aae Sediments (3.140ffeet to 6.840ffeet)
The Cretaceous-age sediments at this well location include Cretaceous Undivided(3,140f
feet to 3,644_+
feet), Menefee (3,644ffeet to 4,378_+
feet), Point Lookout (4,378ffeet to 4,520k
feet), Mancos (4,520ffeet to 6,010ffeet), Gallup (6,010ffeet to 6,443ffeet), Greenhorn (6,443f
feet to 6.514f feet), Graneros (6,514ffeet to 6.540f feet), Graneros Sandstone (6,540ffeet to
6,600ffeet) and Dakota(6,600ffeet to 6,840ffeet).
Lithologically, the entire Cretaceous section is similar to the overlying Quaternary section
being representative of mixed claystone, red bed, dark shales interfingered by sandstones
and
siltstones facies. The Menefee formation has interfingered coal stringers over much
of the interval,
3.644f feet to4,378ffeet with onecoal stringer being present in the Point Lookout interval.
As a consequence, it is difficult toaccuratelydeterminethesource
rock potential for
hydrocarbon generation (oil and/orgas). Most definitely the Menefee formationcould serve as an
excellent source for both oil and gas when one considers the interfingered nature of the various
swamp-near shore depositional cycles
which appear to characterize these sediments.
Based on the data presented in Summary Table II and Table I, (and discounting the high
coal values), the organic carbon contents (TOC) vary from a low of
0.18% to a high of 5.40%
(average 2.60%). These values would indicate a good to very good potential forsourcing gas and
a possibly good oil liquidssourcepotential. The kerogenispredominantlyHerbaceous-Woodyof oil-prone Amorphous-Sapropeliic
lnertinitic plantdetrituswith,however,fairabundances
of the coals (46.59% and 53.34%)
distributed throughouttheformations.Thecarboncontent
would be consistent with bituminous type coals which have experienced a geothermal diagenetic
(time-temperature) history comparable
to that rated as the oil generation window.
A similar appraisal of the S, volatile hydrocarbon and S, generatable hydrocarbon yields
abundances (SI,
following Rock-Eva1 (R-E) pyrolysis also shows good to very good
190 ppm to 830
ppm. average 437 ppm; S,,230 ppm to 10,430 ppm, average 4,210 ppm). A good oil source
quality for the contained organic matter in these sediments is also reflected
in the moderately
higher Hydrogenindex values (98 to 277,average 167)compared to the significantly lower Oxygen
Index values (23 to 110, average 37). Note also the high SJS, ratio values which indicates a
significant oil liquids source character forthe contained organic matter (Figure 1-6).
Unfortunately,atthis
well location the thermalalterationranking
fortheCretaceous
sediments only rates at a moderately immature Stage If to 2- (TAI 1.5) grading with increasing
depth of burial to a moderately mature Stage 2 (TAI 2.2),based on the coloration of the plant
cuticle. It should be borne in mind,however, that when one visuallyratesorganic
rich
carbonaceous shales or limestones, it is a limitation on the accuracy of the maturity rank in that
whereas the outside of the palynologic kerogen can be darkened geologically, it also applies that
the inside canremain comparatively unaltered.
It is my opinion that this is the case
at this well location and consequently the thermal
alteration rank should be a moderately mature to mature level (i.e. TAI
2.3 to 2.5). The Vitrinite
Reflectance %Ro measurements would be more in keeping with a moderately mature to mature
thermal rank for this interval.
Based on the above discussed findings, the Cretaceous-age sediments are rated as good
to possibly excellent moderatelymatureto mature oil and associatedgassourcerocks.
The
interfingered sequence of sands, silts. carbonaceous shales and bituminous rank coals could well
have generated significant yields of oil liquids, and most certainly, methane coal gas in the local
area of this well.
(6,840ffeet
Jurassic-age sediments at this
well location comprised the Morrison Formation
to 7,412ffeet), the Todilto (7,4122feet to 7,530f feet) and the Entrada (7,530ffeet to 7,7261
feet).
From the litho percentage log and litho description it appears these three(3) stratigraphic
units are primarily a mixture of interfingered light colored claystones and shales with sandstones
and siltstones. Limestone nodules were noted in the upper portion of the Morrison Formation and
also at the base of the Entrada.
The datapresented in Figure 1-6 indicatespoortoverygoodorganiccarbon(TOC)
contents (average 1.45%, SummaryTable li) with correspondingly good amounts of S, volatile
S,
hydrocarbon (360 ppm to 520 ppm, average 420 ppm)andgoodtoexcellentamountsof
generatable hydrocarbon potential(400ppm to 2,720ppm, average 1,413 ppm).
Thermal maturityranking fortheJurassicsediments
rated asmoderatelyimmature to
moderately mature (Stage 2- to 2.TAI 1.8 to 2.0), a value which is only at an onset level of oil
and/or associated gas formation. The contained organic matterin these sediments was dominantly
Herbaceous plant detdtus with secondary amounts
of oil-prone Amorphous-Sapropellic kerogen. It
is interpretedhoweverthat at thismaturitylevelthecontainedkerogenswould
be essentially
potential gas sourceswith the possibilityfor oil liquids at higher msturityrank.
Triassic Sediments f7.726f feet to 8.885t feet)
Triassic sediments comprised the Chinle Formation (7,7265 feet to 8,7375 feet) and the
Aqua Zarca Formation (8,737i feet to8,8855 feet).
Based on the parameters discussed above for the Jurassic-age sediments, the Triassic
sediments appear to be very similar comprising interfingered mixtures of red shales, orange red
claystones, sandstones and siltstones. Limestone nodules were again noted at the upper sections
of the Chinle Formation.
to
Thermalmaturity of thesesediments is again rated at themoderatelyimmature
moderately mature (Stage 2- to 2 to 2, TAI 2.0 to 2.2) but with the various richness parameters,
TOC, Rock-Eva1 (R-E), S,, S,, HI and 01values ail averaging significantly lower(0.19%-0.22%; 250
ppm-260 ppm; 250 ppm 353ppm; 131-188; 139-142 respectively).
Theselowervalueswould
be consistent with the Triassic-age sedimentshavinga
moderately immature to moderately mature poor-to at-best-fair
oil andlor associated gas source
character should thisfacies be buried deeper elsewherein this Basin.
Permian-aae Sediments (8.8855 feet to 10.375ifeet)
This interval is represented by the San Andreas Formation (8,885f feet to 8,9905 feet),
Yeso (8.99Oi feet to 9,3785feet),MesetaBlanca(9,3785feetto9,6305feet)andtheAbo
Formation (9.630i feet to 10,3755 feet).
limestone
nodules
Thesesedimentsareagainmixtures
of red shales, dolomites,
interfingered with sandstones and siltstones. The entire interval is lean in organic carbon content
moderately fair amountsof S, volatile
(TOC. 0.13% to 0.29%. average 0.22%)with,however,
hydrocarbon (150 ppm-475 ppm, average 293 ppm) and
S, generatable hydrocarbon potential (367
ppm-570ppm,
average 442 ppm).Thesesediments
have alsoexperienced an increasing
geothermal diagenetic (time-temperature) history being ranked at an oil and associated gas onset
generation rankof Stage 2 to 2+ (TAI 2.3).
The contained kerogen however is entirely a mixture of gas-prone Herbaceous, inertinite
and Woody structured plant remains.
Basedontheseparameters,thePermian-agesediments
rate asmoderatelymature to
mature poor source rocks for eitheroil liquids andlor associated gas generationin the local areaof
this well.
Pennsvlvanlan-aae Sediments (10.3755 feet to 10.955+ feet)
These basal sediments sit upon the Precambrian
Formation at this well location.
and are representative of the Madera
Source rock characteristics reflect the lithologic character of these sediments which are
comprised of red shale intermixed with a dominantly cream
to tan colored limestone accumulation.
Organic carbon contents (TOC) are comparatively good for carbonates (0.21%-0.42%. average
S,
0.31%) buttheyields of S, volatilehydrocarbon(70ppm-170ppm,average100ppm)and
generatablehydrocarbon(320ppm-480
ppm. average 402 ppm)wouldonlyindicateafair
hydrocarbonsourcecharacter.Thematuritylevelis
at asimilarmoderatelymaturetomature
Stage 2 to 2+ (TAI 2.3) state.
Based on these criteria, the Pennsylvanian-age sediments
at this well location are not
considered as viable sources for the generation
of economically significant volumes of oil and
associated gas.
U
)
No samples were analyzedfrom this interval.
i
SUMMARY TABLE I
FORMATION TOPS
Formation Formation
Name
Age
. .
Depth
iretaceous
Cretaceous Undivided
Menefee
Point Lookout
Mancos
Gallup
Greenhorn
Graneros
Graneros Sandstone
Dakota
I
urassic
Morrison
Todilto
Entrada
..
rlassic
Chinle
Aqua Zarca
'ermian
San Andres
Yeso
Meseta Blanca
Abo
+
'ennsylvanian
'recarnbrian
Precambrian
(feet)
600
3140 ?
3140 ?
3644
4378
4520
6010 ?
6443 ?
6514 ?
6540
6600
6840
6840
7412
7530
7726
7726
8737
8885
8885
8990
9378
9630
10375
10375
10955
10955
SUMMARY TABLE II
Summary of Analyses by Formation
!&
ew
- ‘Mar:
1.4
-
1.4
-
1.5
1.5
1.9
1.9
2.1
1.1
?.2
1.3
2.2
2.2
-
-
2.0
2.0
1.8
1.6
2.0
2.0
-
-
1.2
7.1
- -
2.3
2.3
2.3
1.3
2.1
2.1
1.3
1.3
-
-
-
-
- -
TABLE I
SAMPLE IDENTIFICATION
AND
TOTAL ORGANIC CARBON RESULTS
GeoChem
Carbon
Sample
Number
Total Organic
Depth
(feet),
(% of Rock)
4417-001
0.41 0201000-1
4417-002
0.24
1990-2020
4417-003
0.18
2500-2530
441
7-004 0.18
3190-3220
441
7-005 0.27
3490-3520
4417-006A
2.61 3700-37207700-3720
7-006B
441
4414000-401
7-007
0
0
4200-421
7-008 441
4500-4520
4417-009A
4500-4520 4417-009B
7-01441
0
4600-4610
4417-011
2.90
4900-4920
4417-012
5.08
5400-5410
5800-5810
4417-013
4417-014
6100-6110
4417-015
6290-6300
4417-016
6500-6510
4417-017
4417-018
4417-019
441
7-020
4417-021
441
7-022
441
7-023
441
7-024
7-025
441
8900-8910
7-026 441
441
7-0279100-9110
4417-028
9400-941
7-029 441
441
7-030
0.27
"
"-
6700-6710
6900-6910
7100-7110
7500-7510
7600-7610 7900-7910
8300-8310
8600-8610
8800-8810
9000-9010"
0
9600-9610
1.49 : 1.46R
53.34
3.73
3.71
3.34
2.04 ; 2.03R
1.65
1.42
2.40
0.14
2.70
0.38
0.21 ; 0.30R
0.13
0.32
0.19
0.13
0.32
0.30
TABLE I
SAMPLE IDENTIFICATION
AND
TOTAL ORGANIC CARBON RESULTS
GeoChem
Carbon
Sample
Number
Total Organic
Depth
(feet)
(% of Rock)
4417-031
4417-032
4417-033
9700-9710
10000-10010
10300-10310
0.17 ; 0.15R
0.24
0.1 6
4417-034
0.22
4417-035A
0.42
441 7-0355 0.21
4417-036A
441 7-0365
10400-10410
10600-10610
10600-10610
10800-1
081
0
10800-1
081
0
0.27
0.41
0
0
0
FIGURE 1-A
'
ROCK-EYAL
I OC
0.0
2.0
Pyrolysis
4.0 0
"-1
(rn
F~ROLYSISSUMMARY (flgm7gram)
GioChern Job Number 441
'dragenOxygen
Index
Index
250
500 0
5
T-"
52/53
400 0
200
r
l:l I I
I I I I I I I I ~
T-MOX
Index
Prod.
0.0 0.5
453
1.0425
I I I
"
"
-
-
f
-400
-
- 800
.I200
- IGOO
-
-
480
-2000
?100
7.000
-
"
-
............
-.................................
--..............................
-...............................
-
-...
,......,/,>,/,
.................................
"
............
XEIACEObS
"
31
........
""
....
..,.
.,
-7200
........
--7600
"
-8000
-
.................................
-8400
-
-.. .........................
-..
.........
..........................
....
.. 8800
"
I_.
-6800
........
..
..........
nca
................
..........
64UO
..::>.
"
HIASSIC
............
L I ......... ' =
-4800
li(l(l(l
-
.........
"
-
..
L
.....................
-
_I_.
-..................
9700
..............
...
.......... . . . .
7 .
..
-
-
16(10
10000
3
.
-.
"
"_
-10400
_"
-10800
-
"
e,
"
-11200
- 1 1600
.I2000
-
I2100
I 2nuo
~
.
.
-
~~~~
13200
.~
~~
- 13600
. I 4000
14400
"
0.0
2.0
(X)
4.0 0
5
9 0
SI (solid) S2(( $ear)
1 1 1 1 1 1 1 1 ~
00
E
!ihO(l
.................................
................................
............
#(
!
i
-5200
-
"
.4400
m
. .,. . . . .
-
.........
;s:::::
"W..
-4000
-.................................
............
-3600
......
.................................
............
"
-3200
"
200
3
4
(W3)
8 0.0
0.5
(Sl/SltS2)
1.0425
(degrees C)
;
.
l
1
I-
g
TABLE Il-A
RESULTS OF ROCK-EVAL PYROLYSIS (mg/g)
Client
GeoChem
Sample No.
Identification
4417-001
4417-002
0.62
0.39
0.20
4417-003 2500-2530
3190-3220 4417-004
4417-005
3490-3520
441?%%x
3700-3720
3700-3720
4417-0068
38.94
4000-4010 4417-007
4200-4210
- 4417-0084500-45204417-009A
4417-0096
4500-4520
2
4600-46104417-010
4417-011
2.86
433 4900-4920
4417-012
5400-5410
4417-013
5600-5810
4417-014
77.7 6100-6110
6290-6300 4417-015
6500-65104417-016
1.65
0
SI
!<cy
fmgfgf
rnlgko
(mglg)
Qty.
1000-1020
1990-2020
0.04
88.4
92.9
0.32
93.5
90.7
92.1
81.6 439
5.52
3.8
99.9
6.7
48.1
11.5
_
I
_
_
"
84.7
1.17
78.0
95.9
0.38
361
347
0.39
351
335
338
4.77
434
0.11
433 0.19
430
433
428
429
8.21
428
0.11
430
432
432
431
0.07
81.9
93.1
0.41
s2
S3
PI
0.40
0.53
0.44
0.30
0.26
0.37
0.23
0.39
1.37
1.55
53.34
4.47
12.38152.83
0.56 0.05
10.43
2.52
77.21
0.36
4.97
98
0.46
0.50
0.85
0.61
5.00
5.62
0.83
0.52
3.50
0.36
0.39
4.58
0.40
0.35
0.60
1.09
25.52
13.10
1.45
11.73
1.09
0.88
0.50
0.51
0.54
0.58
0.18
0.41
0.07
23.17
0.12
1.49
0.03
PC'
Oxygen
T.O.C.
Hydrogen
( W t W IndexIndex
0.06
0.41
162
0.24
0.18
222
0.06
0.04
0.05
0.42
3.70
0.14
0.27
2.61
91
~
0.03
3.73
0.07
2.90 0.14
0.06
3.71
0.13
0.13
"
"
"
"
"
I
_
0.91
6.62
0.44
0.27
0.72
0.46
0.53
0.33
26
5.40
46.59
I . " " " "
5.08
22
3.34
26
2.04
92
83
216
127
94
144
182
168
104
286
193
165
133
129
1
222
41
110
"
"
23
25
29
30
23
161
134
168
"
1
7
'
277
24
23
__"
"
"
6700-6710
2.63 4417-017 0.36
433
89.5
4417-018
0.46 6900-6910
0.08
85.5
0.53
4417-019 0.30
36410
92.6
- 7100-71
4417-020
7500-7510 1.12
98.70.38
7600-7610 4417-021
96.4 322
4417-022
7900-7910
0.26
94.2
8300-83104417-023
100.0
4417-024
8600-8610
100.5
0.27
8600-88104417-025
93.9
8900-8910 0.28
4417-026
0.38
0.23 95.4
9000-9010 4417-027
98.1
9100-9110 4417-028
0.27
96.9
4417-029
9400-9410
356
94.5
4417-030
9600-9610
101.1
_
"
4417-031
9700-9710
100.7
4417-032
10000-10010
94.1
"
"_
T.O.C.=Totalorganiccarbon,wt.% .
SI
= Free Hydrocarbons, mg HC/g of rack
S2
=Residualhydmwbon potentla1
..
,
tmmn HCln nf mcki
0.24
433
5.14
2.70
0.52
0.24
440
353
357
359
351
356
331
334
0.26
0.23
0.27
0.26
0.36
0.34
0.46
0.42
0.49
0.22
0.13
0.52
365
372
0.40
374
0.12
0.50
0.30
0.25
0.40
0.43 204
0.36
0.38
0.29
0.07
0.57
0.27 0.38
0.21
0.28
0.42
0.04
0.4684
0.04
0.52
0.05
0.38
0.05
0.05
0.13
0.32
0.19
0.13
0.32
~
0.25
"_0.21
0.44
0.47
0.16
0.23 0.39
0.43 _____
0.300.40
0.69
155 0.45
0.46
166
0.29
0.17
0.27
0.32
0.240.25
s3
= GO2 produced from kerogen pyrolysis
PC"
= 0.083(SI + S2)
:
1.42
2.40
0.14
271
0.42
(wCows of rock)
0.05
0.06
0.05
0.09
0.07
0.05
0.04
"
"
0.17
185
214
214
41
105
276
131
292
146
186
230
270
166
'
28
22
11
___
63
128
215
75
142
215
65
69
113
-
170
70
Oxygen index = mg COZg organic carbon
PI
= S11(Sl+S2)
Tmax
=Temperature Index, 'C.
TABLE II-A
RESULTS OF ROCK-EVAL PYROLYSIS(mglg)
GeoChem
Client
Identification
Qty.
10300-10310
4417-033
0.16
0.02
0.29
10400-10410
4417-034
0.22
0.04
0.17
0.04
4417-035A
0.13
10600-10610
0.15
0.21 4417.0358 0.04
10600-10610
0.31
10800-10810
4417-036A
4417.0368
10800-10810
98.3
0.22
97.2
0.21
95.6
0.22
95.0
95.0
0.22
100.1
No.
Sample
T.O.C. =Total organlc carbon,wi.%
SI
=Free Hydmcarbons. mg'HClg
ofmck
52
=Residual hydrocarbon
potentidl ti.
(mg HClg of rock)
''
Tmax
'vc) .
378
0.24
0.41
380
0.48 505
0.38
503
4530.17
0.32
436
. .
.
. .
. . . .
'
s2
(rngkl)
SI
(mg/g)
53
0.10
0.08
0.07
0.17
0.09
0.09
0.42
PI
0.27
0.18
0.22
= GO2 producedfmm kerogen
pymlysis
.,
. .
s3
(msU
(mgC021gofmck)
PC*
= 0.083 (SI + S2)
Hydrogen index= mg HClgorganiccarbon
.
''
~
PC'
0.04
0.03
T.O.C.
Hydrogen
(M%) Index
Index
0.41
150
186
114
180
155
78
Oxygen
137
95
35
104
62
53
Oxygen Index= mg COZg organic carbon
PI
= SIl(Sl+S2)
Tmax
=Temperature Index,
'C.
",
'
FIGURE 1-El
ROCK-NAL P(R0LYSIS SUMMARY
TOC
0.0
(Pprn wt' wt)
Ge4hem Job Mumber 441
Index
S2/S3
Pyrolysis (ppm)I tiydrogen index .Oxygen
4.0 ,
45w
SI
4
250
500 0 \ 200
400 0
2.0
77-
T-Max
index
Prod.
8 0.0
0.5
453
1.0425
7
i
40
"
"
"
"
"
"
.....
. . . . ......
80
160
200
OllATlRNARY
280
3 2 0 4 7 "
"
....
3
m
"
. . . . ...,..
. . . .
.......
...
....
"
3
"
xc
"
"
.....
...
m
...
"
31
"
.....
.....
......
"
-
"
"
"
...............................
...............................
-
-.
.........................
-..
....................
. .
"
"
5
-
....
"
"
"
......
-
-
"
............................ ....
....
+..................
...
"
-
....
......
................
.......
.....
...:........................ . . . . ......
.................... . . . . ......
.....
"
..............................
-.-.............
.....................
, .
.. .. . .. .. . .
..... . . ......
3
................. . . . ...
"-.............. . . . . ... .
-
-
i
-
"
"
L
"
"
4.0
4
m
Sl(solid) S2(clec
1
4
"
i
"
8C
xc
"
lJ"LL
0.5
1,0425
453
(degrees
A-L-114800
480
C)
TABLE 11-6
RESULTS OF ROCK-EVAL PYROLYSIS (ppm)
GeoChem
Sample No.
Client
identification
Qty.
1000-1020 4417-001
88.4
4417-002
92.9
1990-2020
4417-003
2500-2530
0.54
400
93.5
4417-004 90.7
3190-3220
4417-005 3490-3520
92.1
3700-37204417-006A
81.6
4417-0068
3700-3720
23.173.8
4417-007
4000-4010
433
10499.9
4417-008
4200-4210
6.7
4500-45204417-009A
48.1
4417-0098 77210
4500-4520
2520
428
11.5
4417-010
4970
360 96.2
4600-4610
4417-011
2860
4900-4920
460 84.7
4417-012
8210
5400-5410
500 78.0
4417-013
5800-5810
610
430
- 95.9
4417-014 6100-6110
77.7
4417-015
6290-6300
500
81.9
4417-016 6500-6510
390
93.1
"
"
"
Tmax s3 S I
f'c)
(PPm)
361
380
347
83
351
390
335
338
390
439 0.07
3.70434
0.12
1.49
430
433
s2
fpw)
400
320
440
300
260
370
1090
5520
25520
0.14
190
4470
5EO 5.40
0.24200
0.18230
4770
38940
1550
0.11
152830
10430
"~
_"
"~
429
433
428
3.73
2.90
3.71
432
3.34
4323500
431
4580
0.53
830
520
360
5000
5620
0.13
2.04
Oxygen
T.O.C.
(ppmf
PI
530
0.04390
0.51
0.62
0.04350
600
0.58
0.41
1370
12380
13.10
0.91 1450
11730
0.44'
1090
0.27 870
1170
0.46 850
880
0.33
0.41
PC'
0.03
0.05
0.03
46.59
0.07
0.14
5.080.06
0.11
__
Hydrogen
Index
Index
(M%)
0.06
0.41
92
0.06
0.18
0.05
0.42
0.27
2.61
216
127
__ 144
182
168
53.34.
6.62
25
30
23
0.72
0:13
0.07
1.65
286
193
165
133
98
161
134
168
171
277
"
4417-017
6700-6710
0.12
4417-018
6900-6910
7100-7110 4417-019
0.50
~4417-020 7500-7510
4417-021
7600-7610
4417-022
7900-7910
.0
8300-83104417-023
8600-8610
4417-024
"."__I
8800-8810
4417-025
4417-026
95.4 8900-8910
0.44
4417-027
98.1 9000-9010
- 4417-028 9100-9110
9400-9410 4417-029
4417-030 9600-9610
100.7 9700-9710
4417-031
10000-10010
4417-032
374
___-
400
89.5
85.5
380
92.6
98.7
96.4
94.2
100.5
93.9
210
96.9
94.5
101.1
433
2630
433
364
300
440 1120
322
400
353
357
270
3593510.52
380
356
470
331
334
356
365
372
94.1
T.O.C. =Total organic carbon,kt.%
SI
= Free Hydrocarbons.mgHC/g of mck
S2
= Resldualhydrocarbonpotential
(mg HC!g of m k )
s3
360
420
0.08
5140
530
2.40
300
214
0.14
380
2.70
290
0.12
0.25
520
0.38
0.07240
0.57
204
0.21
430
0.05
270
0.38
260
260
0.13350
0.05280
0.42
230
- ""00.32
42
0.04 0.46
260
270
250
230
0.38
280
360
4 3 0
160
0.39
270
0.30
690
0.09
340
0.40
460
490 0.07 0.52 450
420 _"
220
290
0.32
460
0.25
130
400
170
= CO2
produced
from kerogen
pyrolysis
(mg COVg of mck)
= 0.083 (S1+ S2)
PC*
Hydrogen Index = mg HC/g organic carbon
1.42
0.24
0.46
0.05
185
214
22
____
63
41
105
276
84
0.04
0.05
0.06
0.05
0.19
0.13
0.32
0.23
270
0.05
0.04
0.27
0.17
0.24
131
292
146
186
230
166
166
129
162
222
194
222
41
110
91
23
26
"
"
29
22
26
24
23
~28
271
"
-
11
128
215
75
142
215
65
69
113
155
~170
70
Oxygen Index= mg CO2/g organic carbon
= SI/(Sl+S2)
Tmax
= Temperature
Index,
'C.
PI
-
TABLE ll-B
RESULTS OF ROCK-EVAL PYROLYSIS (ppm)
Client
GeoChem
Sample No.
Identification
Q
y
t.
4417-033
98.3
10300-10310
4417-034
10400-10410
4417-035A
10600-10610
4417-0358 10600-10610
4417-OY6A
10800-10810
4417-0366
100.1 10800-10810
T.O.C. =Total organfo
carbon,
wt.%
SI
=Free Hydrocarbons,
mg HClg of rock
S2
=Residual
hydrocarbon
potentid
(mg HClg of rock)
TmaX
SI
{ppm}
rc)
'
100
80
70
170
90
90
378
380
505
503
420
453
436
97.2
95.6
95.0
95.0
.
"
. ...
52
(Ppm)
{PPm)
0.16 240
0.22 410
480
380
0.27
320
= e03 p!odu@
Pi
0.02220
0.04210
150
0.04
220
0.04
170
220
0.29
0.17
0.13
0.31
0.18
0.22
from kerogen
pyrolysis
(mg COag of rock)
PC'
= 0.083 (SI + S2)
Hydrogen index = mg HGlg organic carbon
53
,,
T.O.C.
(M%)
53
PC'
0.04
Hydrogen
Oxygen
Index
Index
150
186
114
180
155
78
0.42
0.21
0.03
0.41
137
95
35
104
62
53
Oxygen Index= mg COUg organic carbon
PI
= S1l(Sl+S2)
Tmax
=Temperature
Index,
'C.
FIGURE2-A
HYDROCARBON SOURCERICHNESS
10’
I
I
I I I llll
-
CARBONATES
Iff
I
I 1
DRY GAS SOURCES
. ..
...
,.
NON OIL SOURCES
RESERVOIRS
1°-k
II
I@
S1
and S2
I
I
I I I llll
0(ppm)
10‘
I
I
I
I l l l l
105
GeoChem Job Number 4417
I
I
I I 1 I I I
1 0’
FIGURE 2-B
HYDROCARBONSOURCERICHNESS
100
1 0'
CARBONATES
1OJ
1 02
m
r-"
-
I
I l l
i
II
I
I llllyl
/
CONDEN: TE SOURCES
G
1 05
1 04
I
I
I
1 06
I I I llll
I
I
I I l l
OIL SHALES
; 00
0; 0
DRY GAS SOURCES
i o
Y
oc
:
i G
i o
6%
:
0
0
>
Oio
C
"\
P
NON OIL SOURCES
P
O
0
R
LLU
1 00
1 0'
..
......
... ...
.
... ..
..
RESERVOIRS
..
I
i
I l l
I
103
s1 ( P P 4
I
I
I
I I Ill1
10'
I
I
I
l l l l l
105
GeoChem Job Number 4417
I
I
I I I I
10'
FIGURE 2-C
HYDROCARBON SOURCE RICHNESS - CARBONATES
1 00
1 0'
1 02
7
105
II
I 05
1 0'
I
I
,TE SOURCES
I I l l 1
I
/
I
I I I llll
106
I
I
I I I l l
/I
OIL SHALES
DRY GAS SOURCES
-
lot
100
NON OIL SOURCES
1 0'
1 02
105
s2 ( P P d
1 04
1 05
GeaChem Job Number 4417
10'
FIGURE 3-A
HYDROCARBONSOURCERICHNESS
- SHALES & MUDSTONES
10 0
i@
L
1GJ
1 0'
I
I
I I I1111
I
I 1
I ~5
1 0'
I
"
I
I
I I I l l
I
I
I I I llll
G
0
OIL SHALES
0
DRY GAS SOURCES
/
1
1 01 00
IO <
I
7
<
0
NON OIL SOURCES
I
I
I I I I l l 1
I
I
I
ILL
1 D'
S1
0 and S2 0 (ppm)
GeoChem Job Number 4417
I
I
I I l l
1 06
1 02
FIGURE 3-B
HYDROCARBON SOURCE RICHNESS - SHALES & MUDSTONES
kdr
107100
DRY GAS SOURCES
1
NON OIL SOURCES
FIGURE 4::KEROGEN SUMMARY
GeoChem Job Number 4417
,
I
',
Formation
0
1
2.0
L
1
"-T--
-1
215.
0 40
4.0
3.3
Oil Factor
Organic Matter Type
Thermal Alteration: Index
TOC
BO
60
20
100
0
35
I
M
-
2000
2400
-x
...........................................
........
.................................
..........
.............i......................
.........
I
..............
:.
m
/
. .
.........
jY
..................................
.........
,x,:,:,;,
.........
:.. .........
/.i::ii.:i:i.:.::lll/i/j/lljl/iiil~.::.:~:,,,,~~:
0
I
I
..........
I
i
..........
..........
-
__I
i .
.........
...............
:..................:..............
.......................
.........
.......................
.........
.........
..............:..................;..............
7
a
W
ll,Oil\
"
"
~
D
11600
12030~
12400-
128001
1
4.0
w-
1
I
O
20
(
..
."_"
35
60
w,I:
(%oil prone)
.-.
..-,
TABLE 111 - A
SUMMARY OF ORGANIC CARBON AND VISUAL KEROGEN DATA
.
,
.
..
....:
.. .
;i; .
':A,;,;,..
..
.
. ..
.
GEOCHEM
' SAMPLE
NUMBER
.
,
..
DEPTH
(FEET)
. .
,-
.i
',
.,. .
-,
'. .
'-:'"70fAL: !, .
., 'ORCANIC
CARBON
,
1
I
I
ORGANIC MATTER
. .
THERMAL
ALTERATION
INDEX
H;Am;W-I
H-I;W;Am
. H;Am;W-I
13
-.
50
0
25
36
0
18
9
0 17
174225
13
"_
36
I+
1+. to 2& to "
2
1.4
1.5
1.9
-.
"
4600-4610
5400-5410
6100-6110
7100-7110
4417-019
7900-7910
8600-8610
H;W;Am-I
2- 17 250 42 17
1.42
H;Am;W-I
Am-H;-;W-I
0.14
H;Am;2.70
H;I;Am(W)
0.38
0.21;
0.30R
H-l.-.H;Am-I;0.32
360
27
2- 10 100 40 40
0
44
2- 30 100 40 20
3.73
I
4417-024
ALTERATION
. ' STAGE
~
! .
0.24
0.18
1.49;
1.46R
4417-010
4417-012
4417-014
!
. *'
,
I
4417-028
9100-9110
4417-029
9400-9410
44
17-032 1 0 0 0 0 - 1 0 0 ~
4417-036A
10800-10810
0.23
0.30
0.24
H;W-I;Am
0.27
H-I;W;-
H-I;WH;W-I;-
0
0
0
25
"___
18
18
to 2
2.0
2.1
2.2
2
2.2
2.0.
1.8
2.0
2.0
2.2
to 2
."
56
0
0
50
50
0
0
50
25
2to 2
2- to 2
2
"
I
~
0
0
36
27
36
0
0
"
6
32-0 27 027 45
27 270 33 13
36
~~~
2_ to 2+
2_ to 2+
to 2.
2_ to 2+
2.3
2.3
2.1
2.3
W
U
I
Woody-Slmclured
Unidentified Material
Inellinile
Coaly
-
LEGEND:
KEROGEN KEY
Secondary;
Predominant;
60-100%
2040%
Trace
0-20%
AI
=
Am
Am"
H
H*
=
=
=
=
Algal
Amorphous-Sapropel
Relic Amorphous-Sapmpel
Herbaccous-SporelPollen
Degraded Herbaceous
C
=
=
-
=
FIGURE 5: GEOTHERMAL DIAGEN
!9
31sGeoChem Job Number 4417
%Kerogen Oil Factor = %AI(O.9)t%Am(O.9)t%H(0.6)t%W(0.3)t%1(0.1)
100
80
60
40
20
0
0
0
TAbLE IV
VlTRlNlTE REFLECTANCE SUMMARY
.
GeoChem
epth Sample
Sample
(feet)
Number
Maximum
Minimum
Number
Type
of
.
,.
Mean
Popu- .
of
Reflectance
Reflectance
Reflectance
Std.
(%Ro)
(%Ro)
latlon
(%Ro)
(%Ro)
Readings
Dev.
Maturity Rank
"
CUTTINGS0.50 1
4000-4010
4417-007
2
4600-4610
4417-010
0.021
4417-012
5400-5410
0.49 CUTTINGS
45
1.31
1.34
1
1.28
2
CUUINGS
0.0220.55 0.60
1 0.49
0.58
43
0.43
2 0.015 1.091.11
0.60
0.034
MODERATELY IMMATURE TO MODERATELY MATURE
MATURE
0.049
MODERATELY IMMATURE TO MODERATELY MATURE
MATURE
1.12
0.69
5
42
MODERATELY
MODERATELY
MATURE
IMMATURE
TO
"
6100-6110
4417-014
"
0.49 CUTTINGS
0.55
0.44
1
2
0.025 1.61 1.64 1.58
5
46
5 1.19
3
1.21
1.24
0.028
0.017
MATURE
VERY
MODERATELY IMMATURE
MATURE
TOMATURE
-
6700-6710
4417-017
0.042 0.65
CUTTINGS
0.72
0.57
1
27
MODERATELY
MATURE
_"
e
a
T A ~ L EIV
VlTRlNlTE REFLECTANCE SUMMARY
..
GeoChem
Sample
Number
00-7510
7-020 441
"
:.
:. , .
i
' ;
Number Minimum Maximum
Mean
of
Popu- ' of
Reflectance
Reflectance
Reflectance
Readings
.,
(%Ro)
(%Ro)
(%Ro)
(%Ro)
Sample
iation
TYPO'
Depth
(feet)
'
Std. Dev.
Maturity Rank
- #
0.025
CUTTINGS
0.69 0.73 10.65
2
0.014 31.35
11
16
61.36
0.82
1.32
0.95
0.89
0.030
MODERATELY MATURE
MATURE
MATURE
-_
-
"
"__
10800-10810
4417-036A
CUTTINGS
7
1
2
6
0.91
1.13
0.98
1.21
0.95
1.17
0.025
0.023
MATURE
MATURE
ie
VlTRlNlTE REFLE ANCE HISTOGRAM
CLIENT
SAMPLE TYPE
LOCATION
READINGS:
0.52
0.480.49
0.52
1.09
0.52
0.44
0.46
0.49
0.53
0.45
0.49 0.49
0.53
0.53
0.47
0.50
0.53
0.47
0.50
0.54
0.47
0.47
0.51
0.54
0.55
0.51
0.47
0.51
0.55
0.480.48
0.51
0.48
0.51
0.55
0.56
1.12
POPULATION
1
2
0.44
0.49
0.53
0.43
0.49
4417-007
40004010 FEET
SEPTEMBER 29,1998
GEOCHEM NO.
CLIENT NO.
DATE
BURLMGTON RESOURCES
CUTrMGS
SHELL OIL CO., #I SANTA FE WELL
NO.
READINGS
43
2
MIN.
MAX.
%Ro %Ro%Ro
0.43
1.09
0.58
1.12
MEAN
0.50
1.11
STD.
DEV.(%)
0.034
0.015
MATURITY RANK
MODERATELY IMMATURETO MODERATELY MATURE
MATURE
SAMPLE NO. 4417-007
t
VITRINKE REFLECTANCEREADING (%RO)
0.51
0.58
VlTRlNlTE REFLEl
aNCE HISTOGRAM
CLIENT
SAMPLE TYPE
LOCATION
..-..-...".
0.58 0.56
."
n
-.49
PGAnINrx.
n.62
n.67
n~62
0"~"
62
0.68
0.69
1.28
1.29
n u
0.56
n 59
0.58 0.59 0.59
NO.
%Ro
0.63
0.63
1.31 1.31 1.34
~~~~
MIN.
MAX.
0.49
0.0211.281.31
45
5
0.69
1.34
0.60
Y
0.56.
.
0.55
n 6n
"
"
n fin
0.1
-~jO
0.64
0.64
0.65
STD.
DEV.(%)
0.049
i
;
;
0.54
0.55
0.60
0.60
0.66 0.67 0.66
4417-010
4600-4610 FEET
SEPTEMBER 29,1998
0.61
0.61
0.68
RANK
MATURITY
MODERATELY IMMATURETO MODERATELY MATURE
MATURE
SAMPLENO. 4417-010
0
0
n 59
0.64
MEAN
%Ro
%Ro
POPULATION
READINGS
1
2
GEOCHEM NO.
CLIENT NO.
DATE
BURLINGTON RESOURCES
CUTTINGS
SHELL OIL CO., #I SANTA FE WELL
I
0
0
T
Y)
VlTRlNm REFLECTANCE READING (%RO)
0.62
0.68
X0 06
t
2.
a
3
2E
$2
2s
' 0
4
VlTRlNlTE REFLE .ANCE HISTOGRAM
CLIENT
SAMPLETYPE
LOCATION
0.45
BURLINGTON RESOURCES
CUTTINGS
SHELL OIL CO., #I SANTA FE WELL
READINGS:
0.45
0.45
0.48
0.48
0.51
0.50
0.54
0.48
0.51
0.54
..
POPULATION
0.028
0.44
0.48
0.55
1.20
NO.
READINGS
0.48
0.51
0.51
1.19
0.49
0.51
1.22
MIN.
MAX.
%Ro
46
0.49
0.44
1.19
5
5 0.0751.61 1.64 1.58
0.46
0.48
0.52
1.22
'
%Ro
0.55
1.240.017
GEOCHEM NO.
CLIENT NO.
DATE
0.46
0.49
0.51
1.58
MEAN
%Ro
1.21
0.46
0.49
0.52
1.24
0.46
0.52
1.61
0.47
0.49
0.52
1.59
STD.
DEV.(%)
0.46 0.48
0.50
0.52
4417-014
6100-6110 FEET
SEPTEMBER 29,1998
0.47
0.50
0.53
1.64
,
MATURITY RANK
IMMATURE
MODERATELY
MATURE
MATURE TO VERY MATURE
SAMPLE NO. 4417-014
VlTRlNlTE REFLECTANCEHEADING (%RO)
0.47
0.50
0.50
0.53
1.64
0.50
0.54
@
VlTRlNlTE REFLE .ANCE HISTOGRAM
CLIENT
SAMPLE TYPE
LOCATION
READINGS:
0.64
0.57
0.66
0.66
NO.
POPULATIQN
READINGS
1
GEOCHEM NO
CLIENT NO.
DATE
BURLINGTON RESOURCES
CUTTINGS
SHELL OIL CO., #I SANTA FE WELL
27
0.58
0.66
0.58
0.60
0.61
0.67
0.68
0.68
MR'I.
%Ro
MAX.
%Ro
MEAN
%Ro
0.57
0.72
0.65
0.61
0.68
0.61
0.68
0.61
0.69
STD.
DEV.(%)
0.042
4417-017
6700-6710 FEET
SEPTEMBER 29,1998
0.62
0.63
0.70 0.72 0.70
RANK
MATURITY
MATURE
MODERATELY
SAMPLE NO. 4417-017
VlTRlNKE REFLECTANCE READING (%RO)
0.63
0.64
0.72
0.64
VlTRlNlTE R E F L E a N C E HISTOGRAM
CLIENT
TYPE
SAMPLE
LOCATION
READINGS:
0.85
1.34
1.35
0.65
0.87
1.34
POPULATIQN
~
0.88
0.67
0.88
1.36
0.67
0.88
1.36
MM.
NO.
READINGS%Ro%Ro%Ro
0.68
0.88
MAX.
0.69
0.89
MEAN
0.69
0.90
0.70
0.90
0.72
0.90
STD.
DEV.(%)
~
1
2
11
16
3
6
0.65
0.82
1.32
44 i7-020
GEOCHEM NO.
CLIENT NO.
DATE
BURLINGTON RESOURCES
CUTTINGS
SHELL OIL CO., #1 SANTA
WELL
FE
0.730.025 0.69
0.95
0.89
1.35
1.36
0.030
0.014
SAMPLE
NO. 4417-020
VITRINE REFLECTANCEREADING (%RO)
0.72
0.90
7500-7510 FEET
FEET
SEPTEMBER 29,1998
0.72
0.91
MATURITY RANK
0.73
1.32
0.92
0.82
0.95
0.85
ai
VlTRlNlTE REFLE
READINGS
GEOCHEM
4417-036A
NO.
CLIENT NO.
DATE
BURLMGTON RESOURCES
CUTTINGS
SHELL OIL CO., # I SANTA FE WELL
CLlENT
SAMPLE TYPE
LOCATION
0.93
0.91
NO.
POPULATION
READINGS
1
2
7
6
0.93
MIN.
%Ro
MATURE
0.91
1.13
0.94
0.96
MAX. STD.
MEAN
%Ro
%Ro
0.0250.98
1.21
0.95
MATURE
1.17
0.98
e
NCE HISTOGRAM
0.98
1.16
1.13
DEV.(%)
0.023
."
.
SAMPLE NO. 4417-036A
VITRINIlE REFLECTANCE READING (%RO)
10800-10810FEET
SEPTEMBER 29,1998
1.17
MATURITY RANK
1.17
1.17
1.21
APPENDIX I
Rock-Eva1 Pyrograms
-
-
GEOCHEM LABORATORIES. INC.
1143-CBrittmoore Road
Houston. Texas 77043
Phone 713-467-7011 * Fax: 713467-7639
E-mail: geochem@geochemusa.com
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