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U.S. DEPARTMENT OF THE INTERIOR
U.S. GEOLOGICAL SURVEY

The Timan-Pechora Basin Province of Northwest Arctic Russia:  Domanik – Paleozoic Total Petroleum System

by
Sandra J. Lindquist
(For printing: best with legal size paper in landscape orientation)
Table 2.   Timan-Pechora Basin Province
Reserve Allocations and Reservoir Characteristics by Age and Lithology


ALL RESERVOIRS
SANDSTONE RESERVOIRS
CARBONATE RESERVOIRS
RESERVOIR AGE
Avg.
Avg.
Avg. Net
 Allocated Reserves *
Avg.
Max
Avg.
Max
Strat
 Reserves *
Avg.
Max
Avg.
Max
Strat
 HC TYPE
Poro
Perm (md)
Thickness
 Reserves *
mmboe
 (% of
Poro
Poro
Perm
Perm
Traps
mmboe
 (% of
Poro
Poro
Perm
Perm
Traps
(%)
(arith / geom)
(m)
mmboe
(% of all)
 horizon)
(%)
(%)
(md)
(md)
(%)
 horizon)
(%)
(%)
(md)
(md)
(%)
POST-HERCYNIAN
Triassic
22.5
75 / 39
7
1344
(12)
1344
(100)
22.5
28
75
340
(3)
0
(0)
(0)
 variable
Upper Permian (pt 3)#
19.3
156 / 53
9
1103
(10)
1081
(98)
19.5
27
156
1113
(5)
22
(2)
9
9
120
120
(0)
 variable
"UPPER PALEOZOIC"
Lower Permian (pts 1,2,3)#
15.3
134 / 70
19
3178
(27)
763
(24)
15.9
24
184
765
(4)
2415
(76)
15.1
28
118
650
(22)
 variable
Upper Carboniferous (pts 1,2)#
13.2
120 / 68
19
1164
(10)
70
(6)
13.2
19
195
840
trace
1094
(94)
13.2
19
95
250
(5)
 variable
Lower Carboniferous (pt 1)#
14.9
117 / 66
9
129
(1)
50
(39)
14.4
20
137
350
(0)
79
(61)
15.8
20
89
257
(0)
 variable
Upper Devonian (pt 3)#
12.9
260 / 97
15
3019
(26)
1268
(42)
13
20
372
4000
(31)
1751
(58)
12.9
25
177
1200
(14)
 variable
Middle Devonian (pts 2,3)#
13.7
239 / 72
13
& 708
& (6)
708
(100)
13.7
25
239
3560
(9)
0
(0)
(0)
 variable
"LOWER PALEOZOIC"
Lower Devonian
10.8
162 / 84
22
680
(6)
61
(9)
13.7
16
52
85
(0)
619
(91)
10.4
14
179
413
(23)
 all oil, 26-41 API
Upper Silurian
9
63 / 62
?
?
?
0
(0)
(0)
?
(100)
9
10
63
80
(100)
 all oil, 32-35 API
Lower Silurian
10.5
93 / 81
10
148
(1)
1
(1)
12
12
15
15
(1)
147
(99)
10.4
16
99
150
(21)
 mostly oil, 23-39 API
Silurian
10.8
387 / 177
17
58
(Tr)
14
(24)
11.5
12
115
200
(0)
44
(76)
10.3
11
930
930
(0)
 all oil,15-40 API
Upper Ordovician
11
3
31
78
(1)
0
(0)
(0)
78
(100)
11
11
(0)
 oil and gas
ALLOCATABLE TOTALS
14
avg.
10901
(100)
5360
(46)
16 avg.
154 avg.
avg. 4.4
6249
(54)
13 avg.
208 avg.
avg. 15.4

* Reserve numbers are ultimate recoverable (all data derived from Petroconsultants, 1996).
# Timan-Pechora known recoverable reserves total 19978 mmboe, but just 58% (11609 mmboe) can be allocated to reservoir horizons with available porosity, net thickness and oil saturation information.

The three largest producing fields listed below contain 30% (5908 mmboe) of all Timan-Pechora known recoverable reserves.  They are distributed within the above-noted reservoir horizons in unknown proportions.

1    Vuktyl
2    Usa
3    Vozey
&  Middle Devonian siliciclastic volumes under-represented (Umishek, personal communication, 1998), possibly because of inclusion with Upper Devonian category.

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U. S. Geological Survey Open-File Report 99-50G