Hydrocarbon Potential of Timan Basin,

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HYDROCARBON POTENTIAL OF THE TIMAN PECHORA BASIN RUSSIA

Contents

1.0 EXECUTIVE SUMMARY

2.0 GENERAL INTRODUCTION

3.0 EXPLORATION AND PRODUCTION HISTORY 3.1 Introduction 3.2 Exploration History 3.3 Production History 3.4 Current Activity

4.0 STRUCTURAL FRAMEWORK 4.1 Introduction 4.2 Plate Tectonics and Structural History 4.3 Present Day Tectonic Elements

5.0 STRATIGRAPHY 5.1 Introduction 5.2 Stratigraphic Section 5.3 Economic Basement 5.4 Ordovician 5.5 Silurian 5.6 Middle Devonian 5.7 Upper Devonian 5.8 Carboniferous 5.9 Permian 5.10 Triassic 5.11 Jurassic - Lower Cretaceous 5.12 Upper Cretaceous - Recent 6.0 HYDROCARBON SOURCE ROCKS 6.1 Introduction 6.2 Distribution of Source Rocks 6.3 Maturity 6.4 Migration and Entrapment

7.0 RESERVOIR AND SEALS 7.1 Introduction 7.2 Stratigraphic Distribution 7.2.1 Ordovician and Silurian 7.2.2 Lower Devonian 7.2.3 Middle Devonian 7.2.4 Upper Devonian 7.2.5 Lower Carboniferous 7.2.6 Middle Carboniferous to Upper Carboniferous 5 7.2.7 Upper Carboniferous to Lower Permian 7.2.8 Middle Permian 7.2.9 Upper Permian to Triassic 7.3 Aquifers and Hydrodynamics

8.0 TRAPPING MECHANISMS 8.1 Introduction 8.2 Structural Traps 8.3 Combination (Structural/Stratigraphic) Traps 8.4 Stratigraphic Traps 9.0 PLAY CONCEPTS AND FUTURE POTENTIAL 9.1 Introduction 9.2 Ordovician/Silurian - Anticlinal Traps 9.3 Silurian/Lower Devonian - Reef Traps 9.4 Middle Devonian - Anticlinal Traps 9.5 Middle Devonian - Stratigraphic Traps 9.6 Upper Devonian - Reefal Traps 9.7 Upper Devonian - Anticlinal Traps 9.8 Upper Devonian - Reef Drape Traps 9.9 Carboniferous - Anticlinal Traps 9.10 Permian - Reefal and Drape Traps 9.11 Permo-Triassic - Jurassic - Anticlinal Traps 9.12 Summary

BIBLIOGRAPHY

APPENDIX A - FIELD SUMMARY SHEET APPENDIX B - RUSSIAN COMPANIES

HYDROCARBON POTENTIAL OF THE TIMAN PECHORA BASIN RUSSIA

FIGURES 2.1 Study Area 2.2 Database

3.1 Fields in Production and Considered for Development with Associated Infrastructure 3.2 Foreign Joint Ventures/Production Sharing Agreements/Protocols

4.1 Structural Elements 4.2 Depth Map - Top Basement 4.3 N-S Cross-Section: Kolva to Pechora Kozhva Swells 4.4 Depth Map - Base Domanik (near Base Upper Devonian) 4.5 Depth Map - Top Permo-Carboniferous Carbonates 4.6 W-E Cross-Section: to Vuktyl 4.7 W-E Cross-Section: Izhma Pechora Depression to Korotaikha Trough

5.1 Lithostratigraphic Correlation 5.2 Isopach and Palaeogeography Ordovician - Lower Devonian 5.3 Isopach and Palaeogeography Middle Devonian - early Upper Devonian 5.4 Isopach and Palaeogeography Upper Devonian 5.5 Model of Upper Devonian Sedimentary Sequences 5.6 Isopach of Upper Carboniferous - Lower Permian Carbonates 5.7 Isopach of Permian Clastics 5.8 Isopach of Triassi

6.1 Stratigraphic Distribution of Source Rock 6.2 Geothermal Gradient Map 6.3 Present Day Temperature (°C) of Upper Devonian Domanik 6.4 Maximum Maturity of Upper Devonian Domanik (Ro) 6.5 Geothermal Gradient and Vitrinite Reflectance - Shapkina Yuryakha Swell 6.6 Geothermal Gradient and Vitrinite Reflectance - Upper Pechora Trough 6.7 Thermal Geohistory - Upper Pechora Trough 6.8 Geothermal Gradient and Vitrinite Reflectance - Izhma Pechora Depression 6.9 Thermal Geohistory - Izhma Pechora Depression 6.10 Timing of Generation - Izhma Pechora Depression 6.11 Depth Calibration of Temperature and Maturity - Izhma Pechora Depression 6.12 Thermal Geohistory - Pechora Kozhva Swell 6.13 Timing of Generation - Pechora Kozhva Swell 6.14 Depth Calibration of Temperature and Maturity - Pechora Kozhva Swell 6.15 Thermal Geohistory - Denisov Depression 6.16 Timing of Generation - Denisov Depression 6.17 Depth Calibration of Temperature and Maturity - Denisov Depression 6.18 Geothermal Gradient and Vitrinite Reflectance - Kolva Swell 6.19 Thermal Geohistory - Kolva Swell 6.20 Timing of Generation - Kolva Swell 6.21 Depth Calibration of Temperature and Maturity - Kolva Swell 6.22 Geothermal Gradient and Vitrinite Reflectance - Khoreyver Depression 6.23 Thermal Geohistory - Khoreyver Depression 6.24 Timing of Generation - Khoreyver Depression 6.25 Depth Calibration of Temperature and Maturity - Khoreyver Depression 6.26 Geothermal Gradient and Vitrinite Reflectance - Verandey Adz'vin Zone 6.27 Timing of Generation - Upper Pechora Trough 6.28 Depth Calibration of Temperature and Maturity - Upper Pechora Trough 6.29 API/Depth Plot - Izhma Pechora Depression 6.30 API/Depth Plot - PechoraKozhva Swell 6.31 API/Depth Plot - Shapkina Yuryakha Swell 6.32 API/Depth Plot - Kolva Swell 6.33 API/Depth Plot - Khoreyver Depression 6.34 API/Depth Plot - Varandey Adz'vin Zone

7.1 Log Correlation - Middle Devonian - Usa Field 7.2 Log Correlation - Carboniferous - Vuktyl Field 7.3 Log Correlation - Carboniferous - Shapkin Field 7.4 Porosity/Depth Plot (by lithology) 7.5 Porosity/Depth Plot (by tectonic area) 7.6 Porosity by Formation 7.7 Pressure/Depth Plot

8.1 Structural Traps 8.2 Depth Map Top, Permian Carbonates o Shapkina Yuryakha Swell and Kolva Swell 8.3 Combination (Structural/Stratigraphic) Traps

9.1 Reservoir and Source Relationships 9.2 Exploration Fairway - Middle Devonian 9.3 Exploration Fairway - Upper Devonian 9.4 Exploration Fairway - Carboniferous 9.5 Exploration Fairway - Permian, Triassic 9.6 Location of Potential Joint Venture Fields and Undrilled Prospects

HYDROCARBON POTENTIAL OF TIMAN PECHORA BASIN RUSSIA

ENCLOSURES

1. Database

2. Structural Elements and Field Location

3. Depth Map - Top Basement

4. Depth Map - Base Domanik (near Base Upper Devonian)

5. Depth Map - Top Permian

6. Cross-sections: Kolva to Pechora Kozhva Swells Yarega to Vuktyl Izhma Pechora Depression to Korotaikha Trough

7. Lithostratigraphic Correlation

8. Isopach/Palaeogeographic Maps

9. Seismic Lines 2098-16 Salyukin Field 889-24 Chernayu Field

10. Seismic Lines 486-02 Bagan Field 30386-03 Andryushkin Reef

11. Seismic Lines 11291-19 Lanvozh Structure 50484-10

12. Seismic Lines 8314-20 East Vuktyl and Mishparmin Fields

13. Exploration Fairways

HYDROCARBON POTENTIAL OF TIMAN PECHORA BASIN RUSSIA

TABLES

3.1 Oil/condensate and Gas Production 1950 - 1992 3.2 Fields in Production 1st January 1993 3.3 Fields Being Considered for Development 1993 3.4 Foreign Joint Ventures

6.1 Bottom Hole Temperatures and Geothermal Gradients 6.2 Depth to Maturity - Present Day Temperature 6.3 Vitrinite Reflectance 7.1 Physical Properties of Devonian Shales and Sandstones from Different Zones of Epigenesis