Through the study of regional geology

basin geology

petroleum system

play

hydrocarbon accumulation characteristics was delineated in various type of basins

and resources potential in major basins were evaluated.The plates of the Middle East and Central Asia experienced a divergent tectonic evolution in the south and a convergent evolution in the north.Four prototype basins are recognized:Cratonic basin

rift basin

passive margin basin and foreland basin.On the plane view

oil and gas are distributed in the Mesozoic paleo-passive margin in the northwest of Arabian plate

the southeastern margin of Eastern Europe platform

and the relatively stable areas in tectonically active zones such as the Zagros fold belt and Skiff-Turan tectonic belt.Stratigraphically

petroleum reserves are largely confined to five reservoir intervals:Carboniferous

Permian

Jurassic

Cretaceous and Neogene.Carbonate and clastic rocks contain the bulk of the petroleum reserves

with the former accounting for 80.45%.Based on the integrated geological assessment

this paper evaluates resources potential of 71 plays in 8 major basins.By taking the "play" as the assessment unit

and then type Ⅰ and Ⅱ favorable accumulation areas are determined in the Middle East and Central Asia region.