New Mexico Bureau of Mines and Mineral Resources
Open File Report No. OF-203
ORGANIC GEOCHEMICAL ANALYSIS, SHELL NO- 1 LEEMAN
WELL, SIERRA COUNTY, NEW MEXICO
by Stephen R. Jacobson, James S. Rankin,
and James D. Saxton
Chevron U.S.A. I Inc.
Denver, Colorado
December 14, 1982
Mr. R. A. Bieberman
New Mexico Bureau
of Mines
and Mineral Resources
Socorro, hW 87801
Dear Mr. Bieberman:
Enclosed please find results of organic geochemical work
done
on the
Shell #l Leeman, Sierra County, New Mexico. I've included
a second copy
for Mr. Sam Thompson; please forward it to him.
Also, please keep these
results confidential for one year as we've agreed upon previously.
Thanks
again
for
your
help
and
cooperation
Yours truly,
S.
JSR:ksh
Enclosure
cc:
G. C. Young, Chevron U.S.A.
M. I. Roberson, Chevron
U.S.A.
Rankin
with
this
work.
...'
-
,
\3T:
Chevron
2)-.;]>
Chevron U.S.A. Inc.
U
700 South Colorado Blvd., P. 0.Box 599, Denver, Co 80201
December 10, 1982
Mr. Clayton S. Valder
M a r s h a l l R . Young O i l Co.
750 West F i f t h Street
F o r t Worth, TX 76102
Dear M r . Valder:
of the o r g a n i c g e o c h e m i c a l a n a l y s i s f o r t h e
Enclosedplesefindresults
S h e l l No. 1 Leeman, 1980' FNL, 660' FEL, S e c t i o n 17, T13S-R1E, Sierra
County,' New Mexico.
The o r g a n i cg e o c h e m i c a la n a l y s i si n c l u d e st h ef o l l o w i n gt e s t s :
1.
2.
3:
4.
T o t a lO r g a n i c Carbon (TOC)
Rock Eva1(Pyrolysis)
MicroscopicOrganicAnalysis
(MOA)
V i t r i n i t eR e f l e c t a n c e (Ro) o r Thermal A l t e r a t i o nI n d e x
(TAI)
Resultsi on t h e G a r t l a n d No. 1 Brister w e l l , Sierra County, New Mexico,
had some i n c o n s i s t e n c y ,t h u s
some o f . t h e s e c t i o n was resampled. We w i l l
send a r e p o r t on t h e G a r t l a n d well when t h e a d d i t i o n a l d a t a i s r e c e i v e d .
Yours t r u l y ,
M
, I. Roberson
District Geologist
JSR:ksh
Enclosures
cc:
j
, -
G. C . Young, Chevron U.S.A.
~~~,"",~~~"_,,"____l__
_.,____..I_
..
.
.
~
-. . .
-
..
~ - .
. ~ - . ---
Discussion of R e s u l t s :
I.
Thermal
Maturity
The top of t h e C r e t a c e o u s s e c t i o n
i s c e n t e r e di nt h eo i l - g e n e r a t i o n
zone. Lower -in the C r e t a c e o u s s e c t i o n the rockshave moved i n t o
t h ec o n d e n s a t e andwetgaszone.
The t h e r m a lm a t u r i t yi n c r e a s e s
f a i r l yu n i f o r m l yw i t hd e p t h .P e r m i a n
and t h e u p p e r p a r t
of
Pennsylvanian-agerocksarefounddivided
by t h e wet gas - d r y g a s
boundary.. From thelower Scrawn downward, a l l . t h e sampleswere
in
the d r y g a s zone.
11. OrganicRichnessand
Type
Samples from t h e uppermost p a r t of t h e Cretaceous section had
n e a r l y 1%T . O . C . , however, the kerogen t y p e was 90% i n e r t i n i t e .
The remainderofCretaceousagesampleshad
T.O.C. v a l u e s i n t h e
f a i r . r a n g e (0.5 t o 1.0 w t . % ) andkerogentypeapproximatelyevenly
s p l i t betweenoil-prone,gas-prone,andinertinite.Permianage
r o c k s were m o s t l y c l e a n c a r b o n a t e s , b u t
a s h a l e was encountered
near the b a s e of the G l o r i e t aF o r m a t i o n .
t h i s samplehad T.O.C.
v a l u e of 1 . 6 1 w t . % (good range) and 40% eachofoil-proneandgasprone kerogen.
T .O .C. value's for the Pennsylvanian through the bottom
of t h e h o l e
were i n the f a i r r a n g e and were either of predominately oil-prone
orevenlyoil-prone
andgas-pronekerogentype.
i
P
COFRC #
40909-001
40909-002
40909-003
40909-004
40909-005
40909-006
40909-007
40909-008
40909-009
40909-010
40909-01 1
40909-012
40909-013
40909-014
40909-015
40909-016
40909-017
40909-018
215-250
290-370
550-770
830-1000
1100-1270
1300-1390
3100-3220
4230-4400
4430-4450
5060-5235
5235-5450
5680-5860
5900-6400
6400-6580
6890-7085
7100-7140
7180-7215
7293-7340
(*K = Value l e s s t h a n
S1:
AGE
FORM
Ucret
Ucret
.
Ucret
Ucret
Ucret
Dakota
Ucret
Perm
Perm
Perm cmp
Cisco
Penn
Penn
Penn
Penn
Penn
. Penn'
Mesa Ver
Mesa Ver
Mesa Ver
Manchos
Manchos
DEPTH (FT)
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
Miss
Dev
D
Si1
D
Glorieta
Ab o
Wlf
Cisco
Canyon
S trawn
Strawn
Atoka
L Valley
Percha S
Fslman
s3
-
.3
.6
.5
.7
.8
.7
DESCRIPTION
SI
-
s2
-
Shale
Drk s h a l e
Drk s h a l e
Drk shale
Drk s h a l e
Drk s h a l e
Drk s h a l e
s hCaal lec
Shale
Gry c a l c s h
Gry c a l c s h
Gry scha l c
Gry c a l c s h
Gry csahl c
Gry calc sh
Gry calc s h
Sh gr+ s h
Sh g r y sh
.2
.2
.3
.2
.5
.1
.2
.3
.3
.4
.3
.2
.4
.1
.2
.3
.4
.5
.2
.3
.2
.2
.5
.4
x*
**
.2
.1
.1
.1
.1
.1
.1
rMAx
SI/
S1+S2
s2
-
-
.4
466
449
442
.4
.5
.7
.2
.6
.4
.2
.5
.4
.6
.4
.5
.a
.9
.I
~.
0
;a-
1;5-
.a
.7
.a
.5
.6
.5
.5
.5
.5
.6
.7
.8
.1
.3
.2
.2
.2
.2
.2.
.2
.2
.6
I
.7
.a
.7
.7
.2
.a
.a
.4
.7
.5
w T %
S2/S3
.97
.8a
.92
.76
.96
.71
1.61
.53
.50
.37
.86
1.03
.57
.8a
.71
175
.59
.88
HI
-
a
26
25
51
17
45
46
10
51
5;
a
a
41
9
12
la
11
13
52: MG HC'S/GM Rock, a measure of t h eg e n e r a t i n gc a p a c i t y .
98
128
and m a t u r i t y of t h e
organic matter.
S3:
MG C02/GM Rock, a m e a s u r e o f t h e a b i l i t y
and m a t u r i t y of t h e OM.
TMAX:
Temperature (Deg C.) a t which r a t e of hydrocarbongenerationpeaks.
Sl/SI+S2:
S~.
2/S3:
.
of t h e OM togeneratenon-hydrocarbons,alsodepends
Rationof
A measureof
H I (HydrogenIndex
01 (Oxygen lndex
non-hydrocarbons.
amount generated to t o t a l g e n e r a t i v e p o t e n t i a l ;
t h eo i lp r o n e n e s s . o ft h e
= 100SZ/TOC):
=
100S3/TOC):
of t h e OM.
a m a t u r a t i o ni n d i c a t o r .
OM.
MG HC'S/GM organiccarbon;
MG CO2/GM organiccarbon;
Type D i n d i c a t e s d r i l l c u t t i n g s ( p i c k e d
upon q u a n t i t y , o i l p r o n e n e s s
A f u n c t i o no fm a t u r a t i o n
a measure of t h e o i l p r o n e n e s s
a measureof
theability
of a u n i t amount o f OM.
of a u n i t amountof
by a g e o l o g i s t ) .
C o l o rk e yf o rr o c kd e s c r i p t i o n s :g r y = g r a y ,d r kg r y = d a r kg r a y ,b l k = b l a c k ,l t = l i g h t ,
AA=as above
91
31
44
of amount of g e n e r a t i o n t h a t h a s o c c u r r e d .
Is a f u n c t i o n of t h eq u a n t i t y ,o i lp r o n e n e s s
96
14s
5:
5c
a6
55
17
0 . 1 which i s , b e l o w the d e t e c t a b l e l i m i t ) .
MG HC'S/GM Rock, a measure of t h eb i t u m e nc o n t e n ta n d ,t h e r e f o r e ,
71
1OL
7c
lli
51
28:
t h e OM t o g e n e r a t e
80
SHELL ~1 LEEMAN FED
SEC. 17 - 13s - 1E
SIERRA CO., NEW MEXICO
HYDROCARBON GENERATION ZONES
.. .
"
BIOSTUDY NO. 1089
TA 1
0.0
2.5
3.0
3.5
3.7
1.0
1.5
2.0
4.0
ti"'"'
%R
0.0
0.5
2.5
3.0
3.5
4.0
HHAiUf
ZONE
% KEROGEN TYPES
I
=Vas .90
'VO,
.90
=TA1, 2.9-3.0
'VO,
1.7
iTAl, 3.3-3.4
1.7
STII. 3.2-3.3
'VO,
'VO, 1.7
=TI1, 3.5-3.6
I
?
9
n
.i
r'
9
N
J
9-r
0
;-