关键词: 辽河盆地, 深层, 烃源岩, 储层, 圈闭

Abstract: On the basis of integrated geological studies on deep reservoirs in the west sag of Liaohe Basin,this paper presents substructures and their evolution,the depositional feature,sandbody spatial distribution of deep reservoir beds,the deep reservoir characteristics as well as the dominant factors of deep reservoir.A conclusion from the studies is that the favorable source rocks buriedat 5000 m or more are in their mature phase and have longer oil generation--expelling window,indicating that the petrophysicalproperties of Sha l-2 numbers fan-delta frontal sandbody and Sha3 braided channel sandbody of sublacustrine fan are the bestreservoir in the deep area.Especially a series of structural and lithologic traps are found by using various reservoir predictingmethods,a number of favorable areas are pointed out

Key words: Liaohe Basin, deep strata, source rock, reservoir, trap