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PETROLEUM GEOLOGY OF NE IRAQ

BASIN DATA & EVALUATION PACKAGE

1. Location and National Data
2. General Basin Data
3. Tectonic Setting

Basin Type
General features
Passive margin
Content
Active margin/borderland
Descriptive summary
Structural Development
Basin Configuration
Basin shape
Principal trend(s)
Subsidiary trend(s)
Basin margins

7. Folds

Vertical movements
Tectonic processes
Ages or timing of tectonism
Attitudes
Fold types
Fold geometry
Fold orientations
Foldbelt lineation
Fold/Foldbelt locations
Timing or ages of folding
Intensity of folding
Fold origin

8. Faults

Fault types
Wrench assemblages
Fault sizes/groupings
Fault and faultbelt lineations and trends
Fault class and intensity
Ages or timing of faulting
Fault/faultbelt locaitons

9. Structure: Fractures and Joints

10. Folding, Faulting and Hydrocarbon Accumulation

11. Phanerozoic Stratigraphy

12. Marine Depositional Environments

Bathymetric/sea-level classification
Reefs/carbonate deposition
Evaporitic environments

13. Exploration and Drilling Results

14. Production, Reserves, and Fileds in General

Production: types and amounts
Commercial oil and gas fields (general)

15. Hydrocarbon Indication (Oil and Gas Seeps and Shows)

16. Petroleum Systems

17. Hydrocarbon Source Rocks

- Hydrocarbon migration factors

18. Source Rocks and Maturation

19. Effects of Tectonics on Hydrocarbon Generation, Migration and Accumulation

20. Reservoir Rocks

21. Traps and Trapping Mechanisms

22. Seals and Seal Formation

23. Hydrocarbon Potentials and Future Plays

24. Exploration Potential and Risk/Volume Factor Ratings

General Hydrocabron Exploration Potential

- Oil

- Gas and NG liquids

Risk Factor Rating

- Source rock potential

- Reservoir potential

- Hydrocarbon migration probability

- Trap potential

- Seal potential

C. Volume/Size Factors Rating

- Size of basin area

- Area left to explore

- Number of oil/gas fields expected

- Mean size and largest oil and gas fields expected

- Volume of discoverable reserves

25. History of Exploration

26. Oil and Gas Fields Summary

Abu Ghurab
Ain Zalah
Alan
Bai Hassan
Butmah
Chemchemal
Demir Dagh
Hamrin
Injana
Jabal Faugi
Jambur
Kirkuk
Naft Khaneh
Pulkhana
Qaiyarah
Saifaya
Sasan

27. Selected References

LIST OF TABLES

Table 1: Tectonic development in the geosynclinal areas of northwestern Zagros Basin in north and northeastern Iraq .

Table 2: Classification and description of facies-zones in Tertiary reef-complexes of northern Iraq .

Table 3: Reserves and production.

Table 4: Analysis of some source rocks from northeastern and western Iraq .

Table 5: Major source rocks in the Zagros Basin of north and northeast Iraq .

Table 6: Main reservoirs in Zagros Basin , northern Iraq .

Table 7: Main seals (cap rocks) in the Zagros Basin , northenr Iraq .

Table 8: Volume of undiscovered (recoverable) oil and gas reserves.

Table 9: Data for Naft Khaneh Field.

Table 10: Data for Abu Ghurab Field.

Table 11: Data for Jambur Field.

Table 12: Data for Bai Hassn Field.

Table 13: Data for Ain Zalah Field.

Table 14: Data for Butmah Field.

Table 15: Data for Kirkuk Field.

Table 16: Data for Injana Field.

Table 17: Data for Demir Dagh Field.

Table 18: Data for Sasan Field.

Table 19: Data for Alan Field.

Table 20: Data for Pulkhana Field.

Table 21: Data for Hamrin Field.

Table 22: Data for Chemchemal Field.

Table 23: Data for Jabal Faugi Field.

LIST OF FIGURES

Figure 1: Tectonic framework and oil fields of northern Iraq .

Figure 2: Section across the unstable shelf and geosynclinal areas, northern Iraq .

Figure 3: Isopach map of Upper Fars and Bakhtiari.

Figure 4: Facies map of Upper Fars and Bakhtiari.

Figure 5: Isopach map of Lower Fars .

Figure 6: Facies map of Lower Fars .

Figure 7: Isopach map of Euphrates Limestone.

Figure 8: Facies map of Euphrates Limestone.

Figure 9: Isopach map of Oligocene.

Figure 10: Facies map of Oligocene: Kirkuk Group.

Figure 11: Isopach map of Middle-Upper Eocene.

Figure 12: Facies map of Middle-Upper Eocene: Jaddala-Pilaspi-Aqana-Kurgush Formations.

Figure 13: Isopach map of Paleocene-Lower Eocene.

Figure 14: Facies map of Paleocene-Lower Eocene: Aaliji-Khurrmala-Singar-Kolosh Formations.

Figure 15: Isopach map of Upper Cretaceous.

Figure 16: Facies map of Upper Cretaceous: Shiranish-Tanjero-Plisener-Bekhma Formations.

Figure 17: Isopach map of Lower Senonian and Turonian.

Figure 18: Facies map of Lower Senonian and Turonian: Mushorah-Kometan Formations.

Figure 19: Isopach map of Albian-Cenomanian.

Figure 20: Facies map of Albian-Cenomanian: Upper Qamchuqa-Upper Balambo-Jawan-Nahr Umr.

Figure 21: Isopach map of Middle Jurassic.

Figure 22: Facies map of Middle-Jurassic: Sargelu-Muhaiwir Formations.

Figure 23: Isopach map of Valanginian-Aptian.

Figure 24: Facies map of Valanginian-Aptian Garegu-Sarmod-Lower Qamchuqa-Balambo.

Figure 25: Isopach map of Tithonian-Berriasian.

Figure 26: Facies map of Tithonian-Berriasian: Chia Gara-Karimia-Sulaiy Formations.

Figure 27: Isopach map of Upper Jurassic.

Figure 28: Facies map of Upper Jurassic: Naokelekan-Najmah Formations.

Figure 29: Bouger gravity anomaly map of northern Iraq .

Figure 30: Time temperature maturation model for the Aalenian-Holocene in northern Iraq oil fields ( Kirkuk ).

Figure 31: Different stages of the formation, maturation, trapping, and preservation of hydrocarbons in Qamchuqa reservoir of the study area. Source rocks are in Middle and Upper Jurassic formations (Sargelu and Naokelekan) and in Lower Cretaceous formations (Chia Gara, Lower Sarmord , Garagu, and Middle Sarmord).

Figure 32: Comparative specific gravity of Kirkuk crudes, North Iraq.