关键词: 松辽盆地, 侏罗系, 构造分带, 构造带, 气田分布, 岩性油藏, 登娄库组, 构造油藏, 沉积前, 勘探方向

Abstract: In the light of evolutionary characteristics of deposition and structures in the course of ItS formation and development,the basin is divided into 4 structural zones of the 1st order: the main fault bending zone in the western part; the central fault foldng zone; the minor fault bending zone in the eastern part and the overlap folding zone on the margin.The first three zones constitute the main body of the basin.Local structures are classified from the view point of dynamics.After a synthetic study of the depositional characteristics of lake basins,their structural features anal types of oil pools,three ring-like zones of distribution of oil and gas fields with reservoirs of medium and shallow depth are proposed: inner zone with lithologic pool; middle zone with structural oil pools and outer zone with scattered oil pools.Prospects for each of these zones are reviewed,and a preliminary discussion of targets for exploration at depth is made at length.