泌阳凹陷双河油田是中国东部大型构造-岩性复合油藏之一。
Shuanghe oilfield in Biyang depression is one of the large structural-lithologic composite oil reservoirs in eastern China.
深层的泥盆系内大型构造十分发育，并组成了近南北向与近东西向构造带的分带、分块与叠加现象。
Big scale structures developed well in Devonian strata which is in the deep area, and formed the approximately south and north, east and west zones.
随着松辽盆地南部大型构造圈闭勘探的不断深入，勘探的目标区已经逐渐转移至以岩性因素起主导作用的非构造油气藏。
With further exploration of major structural traps in southern Songliao basin, the prospecting target has gradually focused on the non-structural reservoirs dominated by litho-stratigraphic traps.
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