2.8 1.4
60 130
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
0 1000
0 300
B-Groove
R-7 (Mahogany Zone)
A-Groove
R-8
R-6
L-5
R-5
??
670 ft
681 ft
779 ft
821 ft
989 ft
1061 ft
Wavy Tuff (634.8 - 637.7 ft)
Density (g/cm3)
Sonic (us/ft) Gamma Ray (API)
Resistivity (ohms)Fischer Assay Oil Yield
(gal/ton)
0 20 40 60 80
Curly Tuff (779.8 - 782.4 ft)
Mahogany Marker (702.6 - 703.1 ft)
Mahogany Bed (717 ft)
Dep
th (f
t)
Gre
en R
iver
/ U
inta
??
35 gpt (714-734 ft)
25 gpt (690-748 ft)
15 gpt (682-928 ft)
50 gpt (716-722 ft)
600
700
800
900
B-Groove
R-7 (Mahogany Zone)
A-Groove
R-6
670 ft
681 ft
779 ft
821 ft
Wavy Tuff (634.8 - 637.7 ft)
Curly Tuff (779.8 - 782.4 ft)
Mahogany Marker (702.6 - 703.1 ft)
Mahogany Bed (717 ft)
Dep
th (f
t)
35 gpt (714-734 ft)
25 gpt (690-748 ft)
15 gpt (682-928 ft)
50 gpt (716-722 ft)
2.8 1.4
60 130
0 1000
0 300
Density (g/cm3)
Sonic (us/ft) Gamma Ray (API)
Resistivity (ohms)Fischer Assay Oil Yield
(gal/ton)
0 20 40 60 80
Mahogany bed outcrop
CountyTownship and Range (Salt Lake Base Line and MeridianUintah Base Line and Meridian)
Well with core located at the Utah Core Research Center
County Seat
20 0 20 40 Kilometers
10 0 10 20 Miles
Duchesne
15E
16E 17E 18E19E 20E 21E 22E
23E
24E
25E
18S
19S
10S
11S
12S
13S
14S
15S
16S
DUCHESNE
WASATCH
UTAH
CARBON
EMERY GRAND
UINTAH
5E
6E 7E
8E 9E 10E 11E 12E
13E
14E
25E24E
23E22E
21E
20E19E
12W
11W
10W 9W 8W
7W 6W
5W 4W 3W 2W 1W
2N
1N
1S
3S
4S
5S
6S
7S
7S
8S
9S
10S
11S
12S
13S
14S
15S
16S
17S
3S
4S
5S
6S
7S
8S
9S
Vernal
1E
P-4P-4
Utah State 1
South Uinta Basin 12South Uinta Basin 12
X-2
South Uinta Basin 3
B-GrooveMahogany Bed
Fischer Assay Oil Yield(gal/ton)
0 20 40 60 80
35 gpt (495-530 ft)
25 gpt (469-542 ft)
15 gpt (340-563 ft)
50 gpt (499-511 ft)
B-Groove
R-7 (Mahogany Zone)
A-Groove
R-8
R-6
??
460 ft
470 ft
547 ft
560 ft
Wavy Tuff (436.6 - 438.8 ft)
Curly Tuff (548.1 - 549.3 ft)
Mahogany Marker (490.9 - 491.4 ft)
Mahogany Bed (504 ft)
Gre
en R
iver
/ U
inta
??
35 gpt (495-530 ft)
25 gpt (469-542 ft)
15 gpt (340-563 ft)
50 gpt (499-511 ft)
300
400
500
B-Groove
R-7 (Mahogany Zone)
A-Groove
R-6
460 ft
470 ft
547 ft
560 ft
Wavy Tuff (436.6 - 438.8 ft)
Curly Tuff (548.1 - 549.3 ft)
Mahogany Marker (490.9 - 491.4 ft)
Mahogany Bed (504 ft)
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
Dep
th (ft)
Fischer Assay Oil Yield(gal/ton)
0 20 40 60 80
Well Name: P-4Operator: White River Shale ProjectCored Interval: 52 - 1173 ft Ground Elevation: 5719 ftLocation: Uintah County, 10S 25E, Sec. 19, NESE, UTM E 659426, UTM N 4421812
Well Name: South Uinta Basin 12Operator: U.S. ERDA-LERC
Cored Interval: 61 - 621 ft Ground Elevation: 6261 ft Location: Uintah County, 12S 24E Sec. 19, NWSE, UTM E 648046, UTM N 4402078
(no geophyscial logs available)
Stratigraphic Units
Stratigraphic Units
R-8The colored blocks represent continuous zones averaging 15, 25, 35, and 50 gallons of shale oil per ton of rock, with footages in parentheses.
R-8
Stratigraphic Units
Core from the P-4 well illustrating the color differ-ence between the rich Mahogany Zone and lean B-Groove.
Utah oil shale
Box 1Box 1
Box 2Box 2
Box 3Box 3Box 4Box 4
Box 5Box 5
Displayed CoreDisplayed Core
720 ft720 ft
789 ft789 ft
Box 1Box 1
Box 2Box 2
Box 3&4Box 3&4
Box 5&6Box 5&6
Box 7&8Box 7&8
DisplayedDisplayedCoreCore
Stratigraphic Units
Utah’s Oil Shale Deposits: Stratigraphy and Resource Evaluation (Poster #2)Michael D. Vanden Berg (801-538-5419, [email protected]) and David E. Tabet (801-537-3373; [email protected])
Utah Geological Survey, Salt Lake City, Utahgeology.utah.gov
