New Mexico Bureau of Mines and Mineral Resources Open File Report No. OF 196 HYDROCARBON SOURCE-ROCK EVALUATION STUDY, GUEST AND WOLFSON NO. 1 DIANA WELL LUNA COUNTY, NEW MEXICO by. L. Paul Tybor GeoChem Laboratories, Inc. Houston, Texas April 15, 1982 SOURCE ROCK EVALUATION CRUDE OIL-SOURCE ROCK CORRELATION 11494 WTFMOORE ROAD CRUDE OIL CHARACTERIZATION OEOCHEMICALpRospEcTING HOUSTON, TEXAS 77043-5094 713/467-7011 A p r i l1 5 , 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 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 w e l l c u t t i n g s s a m p l e s from theGuest & Wolfson No. 1 D i a n a , l o c a t e d i n S e c . 16-23S-llW, LunaCounty, New Mexico. Upon a r r i v a l a t GeoChem the samples were a s s i g n e d t h e followed by thesample numbers -001 t o -038. GeoChem J o b Number 2261, Thesesamplesweresubmittedtothefollowinganalytical program: Table Analysis Type of % 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 & brief lithological description.. ..............I P y r o l y s i s a n a l y s i s .............................. 11 Visual kerogen assessment........ ...............111 Vitrinite reflectance...........................IV DISCUSSION CIF THE RESULTS A. Thermal M a t u r i t y of Sediments Based on k e r o g e n c o l o r a t i o n ( T a b l e I I I ) , t h e t h e r m a l m a t u r i t y of t h e sedimentsrangesfromanimmatureMaturationIndexStage 1+ a t 1840L f e e t , within t h e T e r t i a r y t u f f and a g g l o m e r a t e , t o a moderately mature Maturation Index Stage 2 t o 2+ a t 7870+ f e e t , w i t h i n t h e Cambrian B l i s s Sandstone. - Mr. Clayton S. Valder A p r i l 15, 1982 -2- The rocks from1840 f e e t t o 2060 f e e ta r et o o immature, t o havegenerated well anyhydrocarbonotherthanbiogenicmethane (C1) gas.Between depths 2370 f e e t t o 6620 f e e t ,t h er o c k s are t o oo r g a n i c - l e a nt oa s s e s s This i n t e r v a l i s canprised of redshale, t h e i rl e v e l s ofthermalmaturity. Lower Paleozoic sandstone and v o l c a n i c s , which i s Cretaceous i n age.The sediments from 6720 f e e t t o 7870 f e e t have a a t t a i n e d moderately mature m a t u r a t i o n l e v e l s , which is considered well w i t h i n t h e o i l window. These moderatelymaturerockshaveexperiencedsufficienttime and t e m p e r a t u r et o havegeneratedandexpelledlargequantities of hydrocarbon,providedthese sedimentsareorganicallyrich. (3) samples(Table Vitrinitereflectanceanalysis was performedonthree IV),however,due t ot h ev e r yo r g a n i c - l e a nn a t u r e of t h e s er o c k s ,n o r e f l e c t a n c e r e s u l t s were o b t a i n e d . B. Hydrocarbon Source Characterizations A l l thesedimentsanalyzed from t h eT e r t i a r y ,C r e t a c e o u s ,S i l u r i a n , OrdovicianandCambrian-agerockunitsaredeficientinorganicmatter (% TO€; Table I )w i t hp o o rh y d r o c a r b o ng e n e r a t i n gp o t e n t i a l . The verypoor f r e eh y d r o c a r b o ny i e l d s( S I ;T a b l e1 1 ) andhydrocarbongenerating p o t e n t i a ly i e l d s( S 2 ;T a b l e 111) o b t a i n e df r a nt h ep y r o l y s i sa n a l y s i s s u b s t a n t i a t et h en o n h y d r o c a r b o nc h a r a c t e r i s t i c s of t h e s e r o c k s . Shouldyouhaveanyquestionsconcerningthisdata,of a s s i s t a n c et o y o u ,p l e a s ef e e lf r e et oc o n t a c t i f we can be of f u r t h e r us. Yours t r u l y , Paul Tybor P r o j e c tC o o r d i n a t o r GEOCHFNLABORATORIES,INC st Enclosures . Table I SCREENANALYSIS SUMMARY TotalOrganic Carbon (% o f Rock) GeoChem Sample Number We11 Interval (Feet) Brief Lithological Description 2261-001 1820-1840 Composite: volcanicrock and agglomerate. 0.08 2261-002 2040-2060 Composite: volcanicrock and agglomerate. 0.08 2261-003 2200-2230 Composite: volcanicrock and agglomerate. 0.11 2261-004 2350-2370 Composite: volcanicrock and agglomerate. 0.06 2261-005 2500-2520 Composite: volcanicrock and agglomerate. 0.06/0.06 2261-006 2640-2670 Composite: volcanicrock and agglomerate. 0.07 2261-007 2850-2870 Composite: volcanicrock, agglomerate. red shale and 0.06 2261-008 3000-3020 Composite: volcanicrock,redshale agglomerate. and 0.07 2261-009 3150 Composite: volcanicrock,redshale agglomerate. and 0.10 2261-010 3300-3320 Composite: volcanicrock,redshale agglomerate. and 0.06 2261-011 3450-3460 Composite: rock (15). red shale (85), volcanic 0.07 2261-012 3600-3620 Composite: redshale and volcanicrock. 0.08 2261-013 3800-3810 Composite: redshale and volcanicrock. 2261-014 3950-3960 Composite:red 2261-015 4100-4120 Composite: 2261-016 4250-4270 Cmposite:redshale 2261-017 4400-4420 2261-018 shale and volcanicrock. 0.08/0.08 0.06 and volcanicrock. 0.08 and volcanicrock. 0.10 Composite: red shale and volcanicrock. 0.10 4550-4570 Composite: red shale and volcanicrock. 0.05 2261-019 4650-4670 Composite: red shale and volcanicrock. 0.05 2261-020 4800-4820 Composite: red shale and volcanicrock. 0.08 2261-021 4950-4970 Composite: red shale and igneousrock. redshale 0.05/0.05 Table I SCREEN ANALYSIS SUMMARY GeoChem Sample Number , Well Interval Total Organic Carbon ( % of Rock) Brief Lithological Description (Feet) 2261-022 5050-5070 Composite: Red shale and sandstone. 0.05 2261-023 5250-5270 Composite: Red shale and sandstone. 0.06 2261-024 5400-5420 Composite: Red shale and sandstone. 0.08 2261-025 5600-5620 Composite: limestone. Red shale,sandstone,and 0.09 2261-026 5850-5870 Composite: 1imestone. Red shale,sandstone, 2261-027 6000-6020 Composite: Shale, red (80), sandstone (20). 2261-028 6600-6620 Composite: Dolomite,red red (20). 2261-029 6700-6720 Dolomite, p i n k i s h gray. 2261-030 6800-6820 Limestone, l i g h t brownish gray. 0.04 2261-031 6950-6970 Limestone, l i g h t brownish gray. 0.06 2261-032 7080-7100 Limestone, l i g h t brownish gray. 0.09 2261-033 7150-7170 Limestone, l i g h t brownish gray. 0.09 2261-034 7320-7340 Dolomite, l i g h t brownish gray. 0.06 2261-035 7550-7570 Dolomite, l i g h t brownish gray. 0.06 2261-036 7700-7720 Dolomite, l i g h t brownish gray. 0.08/0.08 2261-037 7800-7820 Dolomite, l i g h t brownish gray. 0.08 2261-038 7850-7870 Composite: 0.07 and (80), shale, Q u a r t z i t e and dolomite. 0.08 0.09 0.08 0.05/0.05 PAGE 1 OF 1 PAGE T.O.C. 51 s2 s3 i PC* Hydrogen Index Oxygen Index PI Tmax TABLE I I RESULTS OF ROCK-EVAL PYROLYSIS 2261-002 2261-004 2261-007 2261-010 2261-013 2261-016 2261-019 2261-023 2261-025 2261-027 2261-028 2261-029 2261-030 2261-031 2261-032 2261-033 2261-034 2261-035 2261-036 2261-037 2261-038 2040-2060 2350-2370 2850-2870 3300-3320 3800-3810 4250-4270 4650-4670 5250-5270 5600-5620 6000-6020 6600-6620 6700-6720 6800-6820 6950-6970 7080-7100 7150-7170 7320-7340 7550-7570 7700-7720 7800-7820 7850-7870 234 424 302 271 271 271 443 375 301 312 0.11 317 0.11 292 297 306 271 0.04 443 444 255 269 270 271 0.01 0.01 0.03 0.03 0.04 0.04 ~. 0.05 0.06 0.09 0.10 , 0.04 0.02 0.03 0.02 0.02 0.02 0.02 0.01 0.01 0.02 ~~ ~~ 0.09 . .. ~ 0.05 0.07 0.09 ~ ~ ~~ 0.09 0.06 0.06 ~ ~~ 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.75 0.21 0.19 0.24 0.33 0.44 0.33 0.33 0.33 0.30 0.39 0.35 0.26 0.23 0.25 0.17 0.24 0.28 0.30 0.22 0.26 0.25 0.17 0.37 0.25 0.29 0.33 0.33 0.30 0.20 0.17 0.17 0.20 0.17 0.17 0.33 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . Total organic carbon, w t . S ’ Free hydrocarbons, mg HC/g of rock = Residual hydrocarbon potential ( M HC/K Of rock) = W Z produce2 from kerogen pyrolysis (wg C02/g of rock) D 0.083 (S1 + S2) = mg HC/g organio carbon = = mg C02/g organio carbon SI/Sl+S2 I Temperature Index, degree0 C. 0.08 0.06 0.06 0.06 0.08 0.10 0.05 0.06 0.09 0.09 0.08 0.05 0.04 0.06 0.09 0.09 0.06 0.06 0.08 0.08 0.07 50 83 100 150 125 90 100 116 100 122 137 180 150 100 44 0 0 16 0 0 0 937 350 316 400 412 440 660 550 366 333 487 700 650 383 277 188 400 466 375 275 371 Table V I VITRINITE REFLECTANCE GEOCHEM SAMPLE NUMBER NUMBER DEPTH 2261-007 2870 mi INSWFICIFM! KEROGQU FLOAT 2261-016 4270 crc; No VITRINITE 2261-025 5620 CfG No VITRINITE (trot) TYPE OF POPULATION OF SAMPLE READINGS SUMMARY MINIMUM MAXIMUM MEAN REFLECTANCE REFLECTANCE REFLECTANCE STD. DEV, ( Yo Ro) (YoRo) ( '10 R o ) ( Yo RO 1 REMARKS