USGS Logo

CERT Logo

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

Petroleum Systems of the Po Basin Province of Northern Italy and the Northern Adriatic Sea: Porto Garibaldi (Biogenic), Meride/Riva di Solto (Thermal), and Marnoso Arenacea (Thermal)
by

Sandra J. Lindquist

(For printing: best with legal size paper)
Table 2.  Reserve allocations* by hydrocarbon source for the Po Basin Province.
PETROLEUM SYSTEM
Ultimate Recoverable
Reserves - MMBOE
% of Province
Total Reserves
 % of Province
Total Gas
 % of Province
Total Oil
% of URR
Produced
Definite Biogenic Plio-Pleistocene) (G)
2388.16
(14.33 TCF)
67.4
75.8***
0
50.57
Probable Biogenic (Plio-Pleistocene) (G)
253.52
( 1.52 TCF)
7.2
8***
0
3.38
Biogenic Miocene (Veneto Plain) (G)
19.68
( .12 TCF)
0.6
0.5
0
50.85
Definite Mix of Biogenic & Thermal (G&C)
286.35
( 1.72 TCF)
8.1
9.1
0
88.19
Probable Mix of Biogenic & Thermal (G)
11.37
( .07 TCF)
0.3
0.3
0
20.56
Thermal Tertiary (Miocene) (GC&O)
153.00
(84% gas)
4.3
4.1
6.4**
63.21
Thermal Triassic (OG&C)
426.92
(16% gas)
12.1
2.2
93.6**
30.35

* Known ultimately recoverable reserves; data derived from Petroconsultants (1996) and Table 1.
** Stefani and Burchell (1993) report that 70% of pre-1989 oil in northern Italy is from Triassic source rocks; Mattavelli and Novelli
(1990) assign 95% of Italian oils (all of Italy) to Triassic carbonate source rocks and 5% to Tertiary shale source rocks.
*** Mattavelli and others (1983) report 80% of Po Basin gases to be biogenic/diagenetic,10% thermal, and 10% mixed in origin.

G = gas, O = oil, C = condensate (note that condensate comprises just 1% of total province reserves.)

[TOP of REPORT]  [To List of Tables]    [To Top of this Page]    [To Next Table]    [To World Energy Project]


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