Light Hydrocarbon Geochemistry: Insight into Mississippian Crude Oil Sources from the Anadarko Basin, Oklahoma, USA
Table 1
Bulk compositional and physical characteristics of examined crude oil samples.
Sample ID
Reservoir
API
%SAT+
%ARO+
%POL+
%ASP+
Type
Group 1
Alf-1
Mississippian
36.12
78.2
14.3
5.4
2.1
Medium oil
Alf-2
Mississippian
37.39
63.4
28.7
3.4
4.5
Medium oil
Woo-1
Mississippian
28.1
58.1
21.7
11.1
9.1
Black oil
Woo-2-
Mississippian
21.73
50.5
24.2
14.8
10.5
Black oil
Kay-1
Mississippian
48.91
69.1
29.2
0.9
0.8
Condensate
Group 2
Lin-1
Woodford
38.45
77
14.2
4.5
4.3
Medium oil
Lin-2
Mississippian
33.24
78.3
11.2
7.7
2.8
Medium oil
Log-1
Mississippian
38.12
75.5
18.9
3.5
2.1
Medium oil
Log-2
Mississippian
38.14
81.2
13.5
4.2
1.1
Medium oil
Pay-1
Mississippian
38.27
66.6
17.8
8.4
7.2
Medium oil
Pay-2
Woodford
34.21
75.7
18.7
3.8
1.8
Medium oil
Group 3
Can-1
Mississippian
32.54
70.8
21.4
5.2
2.6
Medium oil
Can-2
Mississippian
33.38
61.8
30.1
3.3
4.8
Medium oil
Kin-1
Mississippian
35.6
64.5
28.7
5
1.8
Medium oil
Kin-2
Mississippian
33.71
68.8
22.1
4.7
4.4
Medium oil
Bla-1
Mississippian
49.39
87.5
10.9
1.1
0.5
Condensate
Reservoir indicates the landing zone of the horizontal well, and not necessarily the actual source of the oil. +SAT: weight percentage of saturate hydrocarbons; ARO: weight percentage of aromatic hydrocarbons; POL: weight percentage of polar resin compounds (NSO); ASP: weight percentage of asphaltenes.
