Petroleum Geology and Exploration Potential of Argentina

Transcription

1 Petroleum Geology and Exploration Potential of Argentina Table of Contents Page EXECUTIVE SUMMARY... TABLE OF CONTENTS... i viii INTRODUCTION... 1 OBJECTIVES... 1 SCOPE AND STEPS IN INVESTIGATION... 1 DATA SOURCES AND LIMITATIONS... 3 ORGANIZATION OF REPORT... 4 REGIONAL GEOLOGY... 6 PRECAMBRIAN... 6 PALEOZOIC... 6 MESOZOIC TERTIARY OIL AND GAS PRODUCTION AND EXPLORATION FAVORABILITY INTRODUCTION GENERAL PETROLEUM SETTING DISPOSITIONAL HISTORY EXPLORATION HISTORY... 32

2 PRODUCING Northwest Basin Cuyo Neuquen Basin San Jorge Basin Austral (Magallanes) NON-PRODUCING Chaco-Parana Basin Rio Salado Basin Rio Colorado Basin Nirihuau Basin Malvinas Basin RECOMMENDATIONS NEUQUEN BASIN GENERAL STRATIGRAPHY Introduction Pre-Jurassic Basement Jurassic Lower and Middle Jurassic Middle and Upper Jurassic Uppermost Jurassic and Lower Cretaceous Upper Cretaceous Uppermost Cretaceous and Lowermost Tertiary Tertiary TECTONICS AND STRUCTURE Introduction Triassic and Jurassic Rifting Cretaceous Tectonism Tertiary Tectonism PETROLEUM GEOLOGY

3 Exploration and Production History Source Rocks, Maturation and Migration Nature of Source Rocks Total Organic Carbon Values Kerogen Types Maturation Timing of Peak Generation Reservoirs Traps Seals SAN JORGE BASIN GENERAL STRATIGRAPHY Basement Uppermost Jurassic and Lower Cretaceous Uppermost Lower Cretaceous and Upper Cretaceous Cenozoic TECTONICS AND STRUCTURE Tectonic History Structure General Bounding Structures Structures Within Basin PETROLEUM Exploration and Development History Fields, Production and Reported Reserves Source Rocks, Maturation and Migration Reservoir Rocks Traps Seals AUSTRAL BASIN

4 GENERAL STRATIGRAPHY Basement Rocks Sedimentary Fill and Sequences Upper Jurassic Lower Cretaceous (Sequence 1) Mid Cretaceous Mid Upper Cretaceous (Sequence 2) Upper Cretaceous (Sequence 3) Mid Maastrichtian Paleocene (Sequence 4) Mid Eocene Lower Oligocene (Sequence 5) Oligocene Lower Miocene (Sequence 6) Miocene (Sequence 7) Pliocene Quaternary (Sequence 8) TECTONICS AND STRUCTURE PETROLEUM GEOLOGY Exploration and Production Reported Reserves Fields San Sebastian Field La Sara Field Reservoir Rocks Traps Seals Source Rocks Nature of Source Rocks Maturation and Hydrocarbon Generation Peak Generation and Migration CHACO-PARANA BASIN GENERAL STRATIGRAPHY Introduction Basement and Lower Paleozoic

5 Ordovician Silurian Devonian Permo-Carboniferous Jurassic-Cretaceous Serra Geral Basalts Alhuampa Group Upper Cretaceous Tertiary TECTONICS AND STRUCTURE Introduction Lower Paleozoic Tectonism Upper Paleozoic Tectonism Mesozoic Tectonism Tertiary Tectonism Present Day Structure PETROLEUM GEOLOGY Exploration and Production History Fields, Production and Reported Reserves Source Rocks, Maturation, and Migration Nature of Source Rocks Total Organic Carbon Content Kerogen Types Maturation Timing of Peak Generation Migration Silurian-Devonian Upper Paleozoic Reservoirs Traps Seals Exploration Targets MALVINAS BASIN

6 INTRODUCTION General Geological Boundaries STRATIGRAPHY Introduction Basement Middle to Upper Jurassic Lower Cretaceous Upper Cretaceous Tertiary TECTONICS AND STRUCTURE Structural Setting Northern Basin Area Southern Basin Area Tectonic History Pre-Jurassic Jurassic Late Jurassic Early Cretaceous Late Cretaceous Recent Present Day Structural Setting PETROLEUM GEOLOGY Exploration and Production History Field Examples Source Rocks Maturation and Migration Nature of Source Rocks Total Organic Carbon Content Kerogen Types Maturation Migration Lower Inoceramus Upper Inoceramus Reservoir Rocks Traps

7 Seals Exploration Targets CONCLUSIONS BIBLIOGRAPHY