N e w Mexico B u r e a u of Mines a n d Mineral R e s o u r c e s
O p e n F i l e R e p o r t No. O F 1 9 7
HYDROCARBON
SOURCE-ROCK
EVALUATION
STUDY,
COCKRELL NO. 1 S T A T E - 1 1 3 4 9 WELL
LUNA
COUNTYl
NEW MEXICO
by L . P a u l T y b o r
Inc.
G e o C h e r nL a b o r a t o r i e s ,
Houston, T e x a s
'May 1 7 1 1 9 8 2
GEOCHEMICALANALYSES
SOURCE ROCK EVALUATION
CRUDE oIL”souRcEROCK
CRUDE OIL CHARACTERIZATION
GEOCHEMICAL PROSPECTING
1143-C BRITTMOORE ROAD 0 HOUSTON, TEXAS 77043-5094 0 713/467-7011
May 1 7 , 1982
Mr. Clayton S. Valder
Marshall R. Young O i l Co.
750 West F i f t h S t r e e t
F o r t Worth,Texas76102
Dear Mr. Valder:
E n c l o s e dp l e a s ef i n dt h er e s u l t s
of theorganicgeochemicalanalysesperformed
on well cutting samples
from t h e C o c k r e l l 411 Stat‘eh?&,
l o c a t e d i n Luna County,
I\
New Mexico.
Upon a r r i v a l a t t h e l a b , t h e s a m p l e s w e r e a s s i g n e d t h e
GeoChem J o b Number 2288,
andweresubmittedtothefollowinganalytical
program:
Table
-
Type of Analysis
T o t a lo r g a n i cc a r b o nd e t e r m i n a t i o n
and b r i e f l i t h o l o g i c a l d e s c r i p t i o n
Visualkerogen
.................I
assessment.........................;II
Due t o t h e o r g a n i c - l e a n n a t u r e
of theserocks,asdetermined
from t h eo r g a n i c
c a r b o ns c r e e na n a l y s e sp e r f o r m e d ,p y r o l y s i sa n a l y s i s
was not c a r r i e d o u t on any
ofthesesamples.
DISCUSSION OF THE RESULTS
A.
Thermal
Maturity
The t h e r m a l m a t u r i t y of t h e s e d i m e n t s f r o m t h e a n a l y z e d w e l l i n t e r v a l
ranges fromanimmatureMaturationIndexStage
1+ t o 2- a t 6000+ f e e t ,
w i t h i n t h e Lobo, t o a m o d e r a t e l ym a t u r eM a t u r a t i o nI n d e xS t a g et o
2+ a t
6760+ f e e t , w i t h i n t h e
E l Paso.Kerogenassessment
was performed on t h e
s m p i e from t h e u n d e r l y i n g Bliss Sandstone,however i t a p p e a r s t h a t t h i s
sample i s comprisedpredominantly of t h e r m a l l y immature cavings.
unit, however by
Consequently, no m a t u r i t y d a t a i s a v a i l a b l e f o r t h i s
it can be s a f e l y
e x t r a p o l a t i n g from t h e o v e r l y i n g m o d e r a t e l y m a t u r e r o c k s ,
assumed t h a t t h e s e Cambrianrockshaveattained
a t l e a s t a moderately
maturematurationlevel.
Mr. ClaytonValder
-2-
May 1 7 , 1982
The s e d i m e n t s a t 6 0 0 0 2 f e e t a r e t h e r m a l l y
immature and p r o s p e c t i v ef o ro n l y
b i o g e n i cm e t h a n eg a s .F r m
6510+ feet t o 7120+ f e e t ,t h er o c k sa r e
moderatelymatureandconsidered-to
be w i t h i n The o i l window.
B.
HydrocarbonSourceCharacterization
The rocksanalyzed from w e l l i n t e r v a l 5990+ f e e t t o 71202 feet a r e
o r g a n i c - l e a nw i t hp o o rh y d r o c a r b o ns o u r c ey h a r a c t e r i s t i c s .I ft h e
moderately mature rocks analyzed
i n thiswellwereencounteredatan
organically-richpositionelsewhereinthebasin,thensignificant
hydrocarbongenerationcouldhaveoccurred.
Shouldyouhaveanyquestionsconcerningthisdata
a s s i s t a n c e t o y o u ,p l e a s ef e e lf r e et oc o n t a c tu s .
or i f we can be of f u r t h e r
Yours t r u l y ,
st
Enclosures
Table I
SCREENANALYSIS
GeoChem
Samp1e
Number
i
We1 1
Interval
(Feet)
SUMMARY
Organic
Brief Lithological
Description
Total
Carbon
(X o f Rock)
2288-001
5990-6000
Shale,grayish
red.
0.08
2288-002
6190-6200
Shale,grayish
red.
0.09
2288-003
6500-6510
Composite: Shale and siltstone,Pale
2288-004
6550-6560
Limestone,pinkishgray.
0.10/0.09
2288-005
6650-6660
Limestone,brownishgray.
0.05
2288-006
6750-6760
Limestone, l i g h t gray.
0.06
2288-007
6850-6860
Dolomite, l i g h t gray.
0.03
2288-008
6950-6960
Limestone, l i g h t gray.
0.03
2288-009
7020-7030
Limestone,pinkishgray.
2288-010
7060-7070
Dolomite,pinkishgray.
0.04
2288-011
7110-7120
Composite:
0.05
Limestone and sandstone.
red.
0.09
0.03/0.03
N e w Me.xico B u r e a u of Mine's and Mineral R e s o u r c e s
OF 197 .
O p e n ' F i l eR e p o r tN o .
.I
HYDROCARBON SOURCE-ROCKEVALUATIONSTUDY,
COCKRELL NO. 1 S T A T E - 1 , 3 4 9 WELL
LUNA
COUNTY,
NEW MEXICO
by L P. a u T
l y,bor
G e o C h e mL a b o r a t o r i e s ,
Houston, T e x a s
May 1 7 , .1982
InC.
GEoc"EM'cAL
SOURCE ROCK.EVALUATION
CRUDE
OIL CHARACTERIZATION
OEOCnEMICAL
pRospEcTINo
CRUDE OIL-SOURCE ROCK CORRELATION
1143-C BRIRMOORE ROAD 0 HOUSTON, TEXAS 77043-5094 0 713/467~7011
Nay 17,1982
Mr. C l a y t o n S. Valder
M a r s h a l l R. Young O i l Co.
750 West F i f t h S t r e e t
F o r t Worth,Texas 76102
Dear Mr.'Valder:
,
.
.
.:
.
'
E n c l o s e dp l e a s ef i n dt h er e s u l t s
of t h e organicgepchemicalanalysesperformed
onwellcuttingsamples
from t h eC o c k r e l l# l . S t a t * X 6 e i l ,l o c a t e di nL u n aC o u n t y ,
'New Mexico.
Upon a r r i v a l a t t h e l a b , t h e
sampleswereassignedthe
andweresubmittedtothefollowinganalyticalprogram:
GeoChem J o b Number 2288,
Table
Type of Analysis
T o t a lo r g a n i cc a r b o nd e t e r m i n a t i o n
and b r i e f l i t h o l o g i c a l d e s c r i p t i o n
.................I
Visual kerogen assessment.........................'.II
Due to. t h e o r g a n i c - l e a n n a t u r e
of theserocks;
c a r b o ns c r e e na n a l y s e sp e r f o r m e d ,p y r o l y s i sa n a l y s i s
o ft h e s es a m p l e s .
DISCUSSION
A.
a s determined f r m t h e o r g a n i c
was n o tc a r r i e do u to na n y
OF THE RESULTS
Thermal
Maturity
The thermalmaturity of t h es e d i m e n t s fr& t h e a n a l y z e d w e l l i n t e r v a l
r a n g e s fromanimmature
MaturationIndexStage
1+ t o . 2 - a t 6000+ f e e t ,
i t o 2+ a t
w i t h i n t h e Lobo, t o a moderately mature Maturation Index Stage
6760+ f e e t , w i t h i n t h e
El Paso.Kerogenassessment
was performedonthe
Bliss Sandstone,however i t a p p e a r s t h a t t h i s
sbpiefrontheunderlying
sample i s comprisedpredominantlyof.thermallyimmaturecavings.
i s a v a i l a b l e f o r t h i s unit, however by
C o n s e q u e n t l y ,n om a t u r i t yd a t a
e x t r a p o l a t i n g from t h e . o v e r l y i n g m o d e r a t e l y m a t u r e r o c k s ,
it can be s a f e l y
assumed t h a tt h e s e Cambrian r o c k s h a v e a t t a i n e d a t 1 e a s t . a m o d e r a t e l y
mature maturation l e v e l .
Mr. Clayton Valder
May 17, 1982
.
!’
Thesediments a t 60002 feet arethermallyimmatureandprospectiveforonly
biogenicmethanegas.Fran6510+feetto
7120+ f e e t , t h e r o c k s a r e
be w i t h i n The o i l window.
moderately mature and considered-to
B.
Hydrocarbon
Source
Characterization
well i n t e r v a l 5990+ f e e t t o 71202 feet a r e
Therocksanalyzedfrom
o r g . a n i c - l e a nw i t hp o o rh y d r o c a r b o ns o u r c ey h a r a c t e r i s t i c s .
I f the
an
moderatelymaturerocksanalyzedinthiswellwereencounteredat
organically-richpositionelsewhereinthebasin,
then s i g n i f i c a n t
hydrocarbon generation could have occurred.
Shouldyouhaveanyquestionsconcerning
t h i s d a t a o r i f we can be of f u r t h e r
a s s i s t a n c e t o you,please
feel f r e et oc o n t a c tu s .
Yours t r u l y ,
Lator
GEOCHEM LABORAT ‘ O R E S ,
st-
Enclosures
INC.
-
Table I
SCREENANALYSIS
GeoChem
Sample
Number
. .
We11
InterviI1
(Feet I
SUMMARY
Brief Lithological
Description
TotalOrganic
Carbon
(%o f Rock)
2288-001
5990-6000
Shale, grayish red.
0.08
2288-002
6190-6200
Shale, grayish red.
0.09
2288-003
6500-6510
Composite:
0.09
2288-004
65.50-6560
Limestone, pinkish gray.
0.10/0.09
2288-005
6650-6660
Limestone,brownishgray.
0.05
2288-006
6750-6760
Limestone, l i g h t gray.
0.06
2288-007
Dolomite, l i g h t gray.
0.03
2288-008
6850-6860
..
6950-6960
Limestone, l i g h t gray..
0.03
2288-009
7020-7030
Limestone,pinkishgray.
0.03/0.03
2288-010
7060-7070
Dolomite,pinkishgray.
0.04
2288-011
7110-7120
Composite:Limestone
Shale and siltstone,Palered.
and sandstone.
0.05