,
1
t:
N e w Mexico B u r e a u of Mines a n dM i n e r a l
Open F i l e R e p o r t
No. OF-204
Resources
O R G A N I C GEOCHEMICAL ANALYSIS, GARTLAND NO- 1 BRISTER
WELL! SIERRA COUNTY, NEW MEXICO
b yS t e p h e n
R. J a c o b s o n ,J a m e s
S. R a n k i n ,
a n d James D. S a x t o n
C h e v r o n , U.S.A.
Inc.
D e n v e rC
, olorado
W. Brown
a n dS t e p h e n
Brown a n d R u t h L a b o r a t o r i e s ,
Houston, Texas
May 2 5 , 1983
Inc.
Q;F
Chevron
U
Chevron U.S.A. Inc.
700 South Colorado Blvd., P. 0. Box 599, Denver, CO 80201
May 25,1983
Mr. Clayton S. Valder
Marshall R. Young O i l Co.
750West
Fifth Street
F o r t Worth, TX 76102
J'
Dear Mr. Valder:
Enclosed
please
find
the
geochemical
and
paleo
results
from
the
Gartland
#l B r i s t ePr .a l e o n t o l o g ei cx a m i n a t i ootnhf e
samplesfoundCretaceousformsthroughoutthewell.
Also the
T"ax r e s u l t s show a temperaturereversal(lowertemperatures
withdepth).
The c u t t i n g s were
re-sampled
but
the
paleo
and
T-Max r e s u l t s were
unchanged.
Upon verycloseexaminationof
samples i tnh P
e a l e o z o i sce c t i o n ,
a few Permian
forms
were
i d e n t i f i eT
d .h e ar ser e v e rpa ol s s i bilne t e r p r e t a t i o n
t os
e x p l a itnh e sree s u l t s .
The most l i k e l yi,n
my opinion, i s
t h a t h es a m p l e sr e f l e c t
a cavingproblem.
The higherthermal
m a t u r i t y (T.A.1.)
v a l u e (s 4 1 8 0f t .
and
deeper)
were
obtained
from some o f t h e few P a l e o z o i pc a l y n o m o r p h si,n f e r r i n tgh a t
t h e s ev a l u e sa r ep r o b a b l yr e p r e s e n t a t i v e
of t h e s e c t i o n a t t h e
i n d i c a t e dd e p t h s .
.:.
Yours t r u l y ,
M. I. Roberson
DistrictGeologist
JSRfbm
Enclosures
cc:
G. C. Young,
BIOSTBATIGWHIC STUDY NO. 1096
PALYNOLOGY REPORT
P3974
LOCATIOA:
Gartland #l Brister (Drew Matthews)
Sec. 8-125-4W
Sierra Co., New Mexico
PROBLEM:
Cutting and picked cuttings samples submitted by Jim Rankin for
determination of maturity(TAI-Vo) and miscroscopic organic
analysis (MOA).
RESULTS:
Note: So much Cretaceous material is present in the complete
interval that TOC, Tmax, organic yield and
MOA indices are
valueless, essentially the same material was measured over and
over. Laborious examination did yield a very few palynomorphs
that should be "in place" according to the stratigraphy given.
No vitrinite plugs were made because of insufficient material.
They would nothave been useful because such a small proportion
of the kerogen was inplace.
Data
-
Sample
P3974-2
(2160-2180)
Kerogen Types (MOA)
No useful data.
Maturity
Tmax vo
TAI - 2.7
-
2.8 oil generative zone. ("Jot
Amount (of organics)
No useful data.
.70
-
.80)
?
Sample
Kerogen
Types
P3974-3
(2370-2400)
No useful data.
Maturity
Tmax
V."
TAI
-
-
2.6
-
2.7 o i l generative zone. (=Vo, .6o - .70)
Amount
No useful data.
Top of Permian@ 2,740'
Sample
Kerogen
Types
P3974-13
(2930-2940)
No useful
data.
Maturity
Tmax
VO
TAI
-
- 2.8
-
Amount
No useful data.
2.9 oil generative zone.
(=Vo,
.80
-
.go)
Sample
Kerogen
Types
P3974-4
(2920-2960)
No
useful
data.
Maturity
Tmax VO
TAI
-
2.8
-
2.9 oil generative zone. (=Vo, .SO
-
.90)
Amount
No useful data.
Sample
Kerogen
Types
P3974-33
(3650-3660)
No useful
data.
Maturity
%ax
VO
TAI
-
-
2.9
-
3.0 oil generative zone. (=Vo, .90 - 1 . 0 )
Note:' The first occurrence downhole of a
single specimen of Vittatina
sp. (Permian) is
used in this determination, this also is the
first corroboration of the stratigraphy.
Amount
No useful data.
Sample
Kerogen
Types
P3974-34
(4180-4190)
No
useful
data.
Maturity
%ax
VO
'PA1
3.8 - 3.9
-
dry gas gen. zone. (=Vo, 2.1
-
3.4)
Note: TAT. determination based on presence of a
single specimen of Hamiapollenites cf.
gerisporites, a Permian agepalynomorph.
Amount
No useful data.
Top of sill @ 4 , 3 6 0 '
Bottom of sill @ 5,110'
Sample
P3974-38
(5430-5450)
Kerogen Types
No useful data.
Maturity
Tmax
.
.
~"
TAI
- 3.8 -
3.9 dry gas gen. zone. ('Vo,
2.7
-
3.4)
Note: TAI determination based on the
following assemblage:
One specimen of Hamiapollenites cf.
perisporites, Permian
One specimen of Vittatina sp., Permian
One specimenof Vittatina costabilis,
Permian.
Amount
No useful data.
Sample
P3974-30
(6860-6865)
Kerogen Types
No u s e f u l data.
Maturity
Tmax
VO
TAI
-
- 3.8
- 3.9
Amount
No useful data.
dry gas gen. zone. (=Vo, 2.7
-
3.4)
Sample
P3974-39
(6860-6865)
Kerogen Types
No useful data,
Maturity
Tmax VO
TAI
- 3.8 -
3.9 dry gas gen. zone. (=Vo,
2.7 - 3.4)
Note: TAI determination based on a single
specimen of Vittatinasp. a Permian age
palynomorph.
Amount
No useful data.
Sample
P3974-10
(7200-7220)
Kerogen Types
No useful data.
Maturity
Tmax VO
.
TAI
-
-
3.8 dry gas gen. zone.
Amount
No useful data.
(=Vo, 2.7)
Sample
Kerogen
Types
P3974-16
(7200-7230)
No u s e fdualt a .
Maturity
~.
Tmax
"0
TAI
-
3 . 8 - 3.9 drygasgen.zone.
-
(=Vo,
2.7
-
3.4)
Amount
No u s e f u l d a t a .
Kerogen
Sample
Types
P3974-31
(7395-7400)
No u s e fdualt a .
Maturity
Tmax
VO
TAI
-3.8 -
Amount
No u s e f u l d a t a .
3.9 drygasgen.zone.
(=Vo,
2.7
-
3.4)
Sample
Kerogen
Types
P3974-11
(8200-8230)
No u s e fdualt a .
Maturity
Tmax VO
TAI
-
- 3.8 -
3.9drygasgen.zone.
(=Vo, 2.7
-
3.4)
3.9drygasgen.zone.
(=Vo,
2.7
-
3.4)
Amount
No u s e f u l d a t a .
Kerogen
Sample
Types
P3974-12
No u s e fdualt a .
(8500-8510)
Maturity
Tmax
VO
TAI
- 3.8 -
Amount
No u s e f u l d a t a .
Sample
Kerogen
Types
P3974-18
(8490-8550)
No u s e fdualt a .
Maturity
Tmax
"0
TAI
-
3.8 - 3.9drygasgen.zone.
-
(=Vo,
Amount
No u s e f u l d a t a .
ATTACHMENT:
Brown - RuthReport429
Brown - RuthReport407
Figure 1
5-k
May 18,1983
J. D. SAXTON
2.7
-
3.4)
u
APPROX.
APPROX.
TAI
Ro
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
iII
APPHOX.
% Ed
APPROX
TAI
0.30
0.32
0.35
0.38
0.43
0.50
0.60
0.70
0.00
0.90
3.0
3.1
3.2
3.3
3.4
3.5
3.13
3.7
3.8
3.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.6
2.9,
:
4.0
0
0.5
APPROX.
% R,
"
"
0.1 1
0.14
0.16
0.1 8
0.20
0.22
0.24
0.26
0.28
APPHOX.
TAI
1.o
1.5
2.0
2.5
PERCENTVlTRlNlTEREFLECTANCE
3.0
(%
,
3.5
1.0
1.1
1.2
1.3
1.4
1.5
1.7.
2.0
2.7
3 :4
4.0
-
I
4.0
R,)
FIGURE 1
c
T A I AND PERCENTVITRINITEREFLECTANCE
OF
PrllNClPALHYDROCARBON GENERATION ZONES
LE 77-0149
BIOSTRATIGRAPHIC STUDY #lo96
ADDENDUM
P3974
Location
Gartland (Drew Matthew)#1 Brister
Section 8, TlZS, R4W
Sierra County, New Mexico
Problem
Confirm age of picked cuttings samples to support source
rock quality determinations. Requescedby J. S . Rankin.
Results
Sample #
Depth
&.E
P3974-34
P3974-38
P3974-39
4180-90'
5430-50'
6860-65
Permian ( ? )
Permian ( ? )
Permian ( ? )
These results must be used with caution. The dominant proportion of the organic matter is Cretaceous, characterized
by dinoflagellates, plant tissue spores and pollen unknown
from the Paleozoic.' As these samples were picked cuttings,
were concentrated
the possibility that Cretaceous cavings
Consequently bulk
processissuggested.
by the picking
analyses like total organic content
(T.O.C.),
microscopic
organic analyses (M.O.A.) and rock eve1 pyrolysis (including Tmax) are all masked or overprinted by the large Cretaceous component of the samples.
Discussion
The threesamplesstudiedcontainedtwospecimens
of
Hamiapollenites c.f. perisporites, restricted to the Wolfcampian-Leonardian,
two
broken
specimens
assignable
to
Vittatinasp.andonespecimen
of Vittatinacostabilis
(known from Wolfcampian to Guadalupian). One specimen of
each was found in sample P3974-38 (5430-50').
A single specimen
of H.cf.
perisporites was foundin
sample ~3974-34(4180-90~). A single specimen of Vittatina
sp. was found in P3974-39 (6860-65').
How to unravel the
reworking, caving or in-place determination is complicated
by the quality
of the samples available to
be picked and
the picking process itself.
S.
R. JACOBSON
May 9, 1983
SRJ:mm
FILE INMXING INFO.
FOSSIL TYPE
TYPE O f S r U O Y
I
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.
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GEOCHEMICALREPORT
Garland No. 1 Brister Well
SierraCo., New Mexico
8-12s-4W
BROWN & RUTHLABORATORIES,
INC.
10690 Shadow Wood Drive, Suite 130
Houston,
Texas
77043
BROWN 62 RUTH LABORATORIES, INC.
10690 SHADOW WOOD DIUVE, SUITE 130, HOUSTON, TEXAS 77043 o (713) 464,3284
November 2 , 1982
ChevronU.S.A.,Inc.
Post Office Box 5 9 9
Denver, Colorado 80201
Attention:
D r . Stephen R . Jacobson
Gentlemen:
Attachedpleasefind
o u r analytical results from the geochemical analysis
of twelve ( 1 2 ) cuttings samples from the Garland No. 1 Brister Well,
SierraCo., New Mexico.
The work was authorizedby
your Work Request CHEN-2100 of October
11, 1982. Analytical instructions were includedintherequisitionletter.
The unused samplematerial
is being returned under separate cover.
If youhaveanyquestionsconcerningtheseresults,
additional assistance, please contact us.
o r if we canbe
Very truly yours,
SWBIrh
Attachments
RUTH LABORATORIES, I k C .
BROWN
&
Stephen
W.
Brown
of
.
GEOCHEMICAL REPORT
-
407
Chevron U. S .A . , Inc.
Post Office Box 599
Denver, Colorado 80201
CLIENT :
Garland No. 1 Brister,Sierra
WELL :
AUTHORIZATION:
.Co., New Mexico
D r . Stephen R . Jacobson
SAMPLE DESCRIPTION
Twelve (12) cuttings sampleswerereceived
as Work Order CIIEN-2100.
Thesamples
representedtwenty
( 2 0 ) toforty
( 4 0 ) foot intervalstaken
between thedepths
1680 feetand
8510 feet. All the samples
were
in
good condition.
SAMPLEPREPARATION
None of the samples
appeared
t o be
contaminated,
and
no special
preparation was required.
Following visual
examination,
the
samples
were ground, for analysis.
.
I
ANALYTICALDETERMINATIONS
The
instructions
contained
in
the
Work Order
requested
that
total
organiccarbon(T . O . C . ) and Rock-Eva1 pyrolysisbeperformed
on each
of the twelve ( 1 2 ) samples. Theresults
from boththeseanalysesare
contained
the
attached
in
Table
I.
The
pyrograms
are
visually
presented in Figure I.
Ingeneral,thesedimentsrepresentedbythesamplesappearmoderately
immature and hold littlepotential for hydrocarbongeneration.Although
theT.O.C.levelsreacheda
maximum value of 0.96%, the 52 valueswere
consistently low ((0.10
mg/gto
0.88 mglg) , and not indicative of a
potential source unit.
The S 1 valueswere all very low (maximum value 0 . 2 0 mg/g),giving
evidence of the presence of out-of-place hydrocarbon.
no
The Tmax values
were
somewhat unusual,
in
that
they
exhibited
a
definitedecreasewithincreasingdepth.
An examination of the S2 peaks
offered
no
explanation,
so at
this
time the
cause
of the
alteration
reversal is unknown.
Chevron U.S.A., Inc.
Garland No. 1 Brister
Sierra Co., New Mexico
TABLE I
File N o . : 4 0 7
November 21, 9 8 2
Results of Organic Carbon Analysis and Rock-Eva1 Pyrolysis
~
Sample
Numb e r
407-001
407-002
407-003
407-004
407-005
407-006
407-007
407-008
407-009
407-010
407-011
407-012
Dep.th*
(ft)
1680-1700
2160-2180
2370-2400
2920-2960
3660-3690
4140-4150
4280-4290
5140-5150
5400-5430
7200-7220
8200-8230
8500-8510
T.0.C
(wt.%)
0.27
0.63
0.70
0.96
0.54
0.42
0.57
0.88
0.66
0.41
0.65
0.61
s1
s3
s2
(mg/g)
(mg/g)
0.10
(0.10
0.18
-0.11
0.10
(0.10
0.14
0.20
0.24
(0.10
( 0 .10
( 0 . 10
0.17
0.22
0.88
0.70
0.21
(0.10
0.52
0.60
0.58
0.10
<0.10
(0.10
(mg/g)
0.34
0.32
0.35
0.49
0.42
0.80
0.72
0.73
0.38
0.44
0.55
0.62
Tmax
Production
(oc)
Index
**
0.37
442
441
443
438
0.17
0.14
0.32
**
437
435
434
**
**
**
"_
-"
63
35
126
73
39
0.21
0.25
0.29
0.73
0.82
1.55
91
68
88
_"
"_
"_
!
i
i
!
i
i
i
i
j
I
*
**
Hydrogen
Oxygen
Index
Index
0.49
0.68
2.51
1.44
0.51
"_
i
!
S2
s3
feet
Unab le to determine due t o insufficient 5 2 yield, multiple peaks, etc.
"_
"_
"_
~~
"_
"_
_"
"_
126
51
50
51
78
190
126
83
58
107
85
102
v)
E
m
L
01
0
L
x
a
m
>
I
w
U
0
Y
n:
I
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-"---
I
I
GEOCHEMICAL REPORT
TotalOrganicCarbon
&
Rock-Eva1 Evaluation
Garland No. 1 Brister Well
SierraCounty, New Mexico
See. 8-12s-4W
r
v
.
BROWN &? RUTH LABORATORIES, INC.
10690 SHADOW WOOD DRIVE, SUITE 130, HOUSTON, TEXAS 77043
0
(713) 4643264
December 2 2 , 1982
Chevron U .S.A., lnc.
P . 0. Box 599
Denver, Colorado 80201
Attention:
Dr. Stephen R . Jacobson
Gentlemen :
.Attached please find the results
of geochemical analyses performed on nine ( 9 )
cuttings samples from theGarland No. 1 Brister Well, SierraCounty, New
Mexico. Authorizationandanalyticalinstructions
were conveyed as Work Order
CHEN-2100.
The small amount of unused samplematerial is being returned under separate
cover.
We appreciate the opportunity to
be of service to Chevron.
additionalassistance,pleasecontactus.
*-
If we canbe
of
Very truly yours,
BROWN
&
RUTH LABORATORIES, INC.
n
Ste
SWBIkr
Enclosures
W. Brown
en
GEOCHEMICAL REPORT - 429
CLIENT:
\WELL:
CHEVRON U.S.A. I N C .
P. 0. Box 599
Denver, Colorado 80201
Garland No. 1 Brister,
Sierra
County,
AUTHORIZATION:
New Mexico
I
D r . Stephen R . Jacobson
SAMPLE DESCRIPTION:
Nine ( 9 ) cuttings samples from the Garland No. 1 Brister Well, SierraCounty,
Thesamplesappeared
New Mexico, were receivedas
Work Order CHEN-2100.
t o be clean and totally free of contamination.
SAMPLE PREPARATION:
No special
preparation
procedures
were necessary,
and
examination,thesamples
were groundforanalysis.
following visual
ANALYTICALDETERMINATIONS:
The
instructions
contained
in
the
Work Order
requested
that
total
organic
carbon(T.
0. C. ) determinationsbeperformed
on everysample,andthat
Rock-Eva1 pyrolysis
be
performed
on all samples
with
T.O.C.
a
content
in
from both theseanalyses are presented
excess of 0.2%. Thetabulatedresults
inTable I . The Rock-Eva1 pyrograms are plotted in Figures I-A, and I-B.
In general, the samplesappeared t o have a source potential very
similar t o that
observed in corresponding intervals previously analyzed
from the Garland No. 1
Brister Well (Brown & RuthJob No. 407). The onlynoticeabledifference
is a
slightreductionintotalorganiccarboncontentin
most of thesesamples,as
compared t o the roughly corresponding intervals in the
first set of samples.
Thesedimentsrepresentedbythese
samples appearmoderately
immature and
A s in the first set
of samples,
havepoorpotentialforhydrocarbongeneration.
the limited S2 yields (maxiumum yield of 0.83 mg/g),suggestthattheorganic
faciesdoesnotcontainalargeenoughquantity
of thetype of organicmatter
that can be converted into hydrocarbons.
Theapparentreversalinthealterationgradientobservedinthe
first set of
samples from the Garland No. 1 Brister well, was againobservedin
this set of
samples.
The
Tmax
was
in
excess
of 44OOC in
the
first
two samples
and
tended t o decrease with depth.
, .
.,
TABLE I
Chevron U . S . A . (Denver)
Garland No. 1 Brister
SierraCounty, New Mexico
File No. 429
December 22,1982
'
Result.s
,I
Sample
Number
Client
I. D .
429-001
P-3974-23
2920-2980
P-3974-24
3650-3660
P-3974-25
4180-4190
P-3974-26
4290-4300
P-3974-27
4300-4310
P-39'74-28
5170-5180
P-3974-29
5430-5440
P-3974-30
6860-6865
P-3974-31
7395-7400
429-002
429-003
:j
429-004
429-005
j
'I
429-006
429-007
:i
i
429-008
429-009
T.O.C.
(%Wt.)
0f
Olrganic c arbon A.nal:ysi s an(3 Roc:k-Eva :1 Pyroly$;is
s1
s2
(mg/g)
(mg/g)
S3
Tmax
(mg/g) ("C)
0.72
0.16
0.83
0.49
442
0.16
1.68
115
68
0.42
0.12
0.25
0.42
440
0.33
0.59
59
101
0.30
0.10
0.20
0.33
0.78
425
0.25
66
262
0.21
0.22
0.38
0.57
427
0.72
183
256
0.17
"_
"_
"_
"_
_"
0.30
0.14
0.36
0.33
424
0.27
1.11
122
110
0.34
0.24
0.42
0.39
428
0.36
1.07
122
115
10
4.10
0.61
**
"_
_"
"_
136
0.21
0.35
0.53
434
0.37
0.66
0.45
0.44
<o.
"__"
1
t
I
'I
i
I
i
1i
**Unable determine
to
due
insufficient
to
0.36
"_
%!
I
Production
Index
5 2 yield, multiple peaks,
etc.
S2
Hydrogen
Oxygen
s 3 IndexIndex
80
120
€
F I G U R E I-B
R O C K - E V A LP Y R O G R A M S
429-006
P-3974-28
‘
429-008
P-3974-30
iI
429-009
P-3974-31
I
i
!
1:
I\n_
s3
_J
J
s1
s2
s1
52
A”
s1
s2
s1
s2
t