泌阳凹陷南部陡坡带核三段砂体沉积和油气分布特征  

Sand body deposition and reservoir distribution characteristics of the Eh_3 in the southern steep slope zone in the Biyang Depression

作　　者：刘良刚[1] 罗顺社[1] 刘启亮[1] 伍媛[1] 

机构地区：[1]长江大学地球科学学院

出　　处：《油气地球物理》2010年第4期32-37,共6页Petroleum Geophysics

摘　　要：泌阳凹陷南部陡坡带核三段发育有扇三角洲砂体、辫状河三角洲砂体和曲流河三角洲砂体3种类型。不同类型的砂体分布在凹陷中的不同位置,受物源等地质条件的影响,其砂体沉积特征、储集性能和油气分布均具有明显的差异。本文通过岩石组成、层理类型、内部相带的发育情况等方面阐述了这3种类型的沉积砂体特征,并进一步对其储集性能及油气分布做了论述。Three types of sedimentary sand body, which are fan delta, braid river delta and meandering river delta, developed in the Eh3 of the southern steep slope zone in the Biyang Sag. The different types of sand body are at the different locations in the Biyang Sag. Their sand body deposit features, accumulation ability and hydrocarbon distribution have obvious difference as impacted by geologic condition such as matter source. The three kinds of sand body feature are expounded through the rock composition, bedding type, internal facies belt, and the accumulation ability and hydrocarbon distribution are discussed further.

关 键 词：砂体沉积 储集性能 油气分布 泌阳凹陷 

分 类 号：P618.130.2[天文地球—矿床学]