Petroleum exploration in Italy: a review

Mattavelli, L.; Pieri, M.; Groppi, G.

doi:10.1016/0264-8172(93)90044-s

Cited by 59 publications

(31 citation statements)

References 2 publications

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“…In the southern Apennines, the foreland of the Miocene fold and thrust belt was represented by shallow-water carbonates of the Apulian Platform. These were subsequently buried beneath the nappe stack, during late deformation stages, providing the structural traps hosting major oil fields (Casero et al, 1991;Mattavelli et al, 1993;Sciamanna et al, 2004;Shiner et al, 2004). Thus, it could be expected that the dolostone bodies which are reported in the Apulian subsurface (Murgia et al, 2004) might have the same origin, this giving economic significance to the fluid-flow that took place along with the southern Apennines belt formation.…”

Section: Discussionmentioning

confidence: 99%

Late Dolomitization in Basinal Limestones of the Southern Apennines Fold and Thrust Belt (Italy)

Iannace

Gasparrini

Gabellone

et al. 2012

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Bois-Préau, 92852 Rueil-Malmaison Cedex -France e-mail: aleianna@unina.it -marta.gasparrini@ifpen.fr -tatyana.gabellone@unina.it -smazzoli@unina.it Résumé -Dolomitisation tardo-diagénétique dans les calcaires de bassins triassiques de l'Apennin Méridional (Italie) -Les carbonates pélagiques triassiques de l'Unité de Lagonegro, dans l'Apennin méridional hébergent des corps dolomitiques discordants. Ces dolomies montrent les structures typiques connues comme "zébra" ou dolomite "à selle". Dans cette note, on présente les résultats d'observations de terrains et pétrographiques et les données géochimiques obtenues sur trois affleurements. Les données de terrain indiquent que les structures de type "zébra" et bréchifiées sont contrôlées par la stratification très régulière des calcaires micritiques. La dolomitisation a comporté le remplacement du calcaire et de la précipitation de dolomite cristalline dans les vides sous un champ de contraintes extensionnelles. Les températures d'homogénéisation sont comprises entre 80 et 120 °C, avec un mode à (95 ± 10) °C. Après une correction de pression, elles indiquent une température maximale de formation de la dolomie d'environ 110-115 °C. Les températures de fusion de la glace indiquent une salinité comprise entre 2 et 6 wt% NaCl eq, avec une moyenne de 4.2 %. Les valeurs de δ 13 C sont comparables à celles de l'eau de mer triassique, tandis que les valeurs de δ 18 O sont fortement appauvries. Les valeurs du rapport 87 Sr/ 86 Sr sont au contraire plus élevées que celles estimées pour l'eau de mer triassique, mais comparables à celles du Miocène Moyen-Supérieur. Ces résultats indiquent une dolomitisation accomplie par des fluides relativement chauds avec une salinité voisine de celle de la mer et une composition isotopique comprise entre celle de l'eau de mer et celle de saumures de bassin. On propose que cette dolomitisation a été achevée par les eaux expulsées par les formations qui entourent les carbonates pélagiques triassiques ou celles du mélange sous-jacent. L'intégration des données sur l'histoire thermique et de la déformation indique, si l'on assume un équilibre thermique avec les roches encaissantes, que ce phénomène ait eu lieu après le pic d'enfouissement pendant les premiers stades de l'exhumation. Enfin, puisque les dolomies sont assez répandues dans la région, il est bien possible qu'une importante circulation de fluides ait intéressé l'entier fold-and thrust-belt pendant la déformation, y compris les unités de la Plate-forme Apulienne, qui héberge des importants réservoirs d'hydrocarbures. Abstract

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Section: Discussionmentioning

confidence: 99%

Late Dolomitization in Basinal Limestones of the Southern Apennines Fold and Thrust Belt (Italy)

Iannace

Gasparrini

Gabellone

et al. 2012

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…The Hercynian basement of the Apulian platform, folded and commonly metamorphosed, is covered by Permian-Triassic continental clastics (Pieri, 1969;Flores et al, 1991;Mattavelli et al, 1993). These are followed by thick evaporitic deposits, the Burano Formation (Figure 7).…”

Section: Apulian Platformmentioning

confidence: 99%

“…The shale horizons in the subsurface evaporites of the Triassic Ionian and Triassic-Lower Jurassic pre-Apulian zones are known only in boreholes (IGRS-IFP 1966;Karakitsios, 1995;Karakitsios and Rigakis, 2007). The important function of Triassic formations, which are commonly associated with evaporites, in the peri-Adriatic domain as hydrocarbon source rocks (Mattavelli et al, 1993), has a particular significance in the context of the Ionian zone (Epirus region, northwestern Greece). In fact, organic-rich shale fragments have been observed in the Triassic breccias that constitute the surface expression of the subsurface Ionian evaporites (Rigakis and Karakitsios, 1998;Karakitsios and Rigakis, 2007).…”

Section: Petroleum Systems Source Rocksmentioning

confidence: 99%

“…Triassic evaporites and subflysch hemipelagites correspond to the main detachment levels. Main source rock (SR) intervals are shown (Mattavelli et al, 1993). (1) Rigakis, 1996; Rigakis and Karakitsios, 1998;Karakitsios and Rigakis, 2007).…”

Section: Petroleum Systems Source Rocksmentioning

confidence: 99%

“…The eastern part of the Greek Ionian Sea belongs to the pre-Apulian zone, whereas the western part, to the Apulian platform. Hydrocarbon source rocks of the Apulian platform are mainly the organic-rich sediments into the Triassic Burano evaporites (Mattavelli and Novelli, 1990;Mattavelli et al, 1993). Generally, in the periAdriatic area, most of the major hydrocarbon concentrations originate from source rocks occurring in Triassic formations (commonly associated with evaporites) that were deposited in intracontinental basins (Bosellini and Hsü, 1973;Pieri and Mattavelli, 1986;Zappaterra, 1994).…”

Section: Petroleum Systems Source Rocksmentioning

confidence: 99%

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Western Greece and Ionian Sea petroleum systems

Karakitsios¹

2013

Bulletin

119

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In western Greece, the Ionian and pre-Apulian zones represent, respectively, the basin and the transitional zone (slope) to the Apulian platform. The Apulian platform constitutes the weakly deformed foreland of the external Hellenides. The pre-Apulian zone appears in the Ionian Islands and the eastern Ionian Sea, whereas the Apulian platform is exclusively found in the Ionian Sea. The Ionian zone consists of Triassic evaporites, Jurassic–upper Eocene (mostly pelagic carbonates, minor cherts, and shales), overlain by the Oligocene flysch. Organic-rich source rocks occur within Triassic evaporites and Jurassic–Cretaceous pelagic argillaceous-siliceous rocks. The pre-Apulian zone consists of Triassic to Miocene deposits, mainly mixed neritic-pelagic carbonates. Hydrocarbon source rocks include pelagic and hemipelagic deposits rich in marine organic material, although terrigenous organic matter is also found in siliciclastic layers. Apulian platform source rocks are mainly the organic-rich shales within the Triassic Burano evaporites. Western Greece contains major petroleum systems, which extend into the Ionian Sea. Ionian, pre-Apulian, and Apulian petroleum systems contribute to the probable hydrocarbon accumulations within the big offshore (Ionian Sea) anticlines. Western Greece contains important oil and gas shale reservoirs with a potential of unconventional exploration. Promising areas for hydrocarbons need systematic and detailed three dimensional seismic data. Exploration for conventional petroleum reservoirs, through the interpretation of seismic profiles and the abundant surface geologic data, will provide the subsurface geometric characteristics of the unconventional reservoirs. Their exploitation should follow that of conventional hydrocarbons to benefit from the anticipated technological advances, eliminating environmental repercussions

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Microbial Gas

Katz¹

2020

Encyclopedia of Petroleum Geoscience

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Petroleum exploration in Italy: a review

Cited by 59 publications

References 2 publications

Late Dolomitization in Basinal Limestones of the Southern Apennines Fold and Thrust Belt (Italy)

Late Dolomitization in Basinal Limestones of the Southern Apennines Fold and Thrust Belt (Italy)

Western Greece and Ionian Sea petroleum systems

Microbial Gas

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