摘要
以黄骅坳陷第三系为例，系统论述了冲积扇、水下扇、重力流水道、堡坝、三角洲及河流等沉积砂体的层内非均质性。其中辫状河沉积砂体属于强非均质层，堡坝沉积砂体属于均质层，不同沉积砂体的非均质性特点受沉积条件及沉积方式的控制，而成岩作用也有一定的影响。
Taking the Huanghua depression in Tertiary as an example,the authors systematically discuss mesoscopic heterogeneities in depositional sandbodies of alluvial fan, subaquatic fan,gravity channel,barrier bar,delta and fluvial environment etc.,in which the braided channel depositional sandbody belongs to strong heterogeneity and barrier bar depositional sandbody belongs to relative homogeneity. The heterogeneities of different depositional sandbodies were controlled by sedimentary environment and processess, the diagenesis played certain effect as well.
出处
《现代地质》
CAS
CSCD
1995年第4期501-508,共8页
Geoscience
关键词
黄骅坳陷
沉积环境
层内非均质性
油藏
储集层
Huanghua depression
sedimentary environment
reservoir
mesoscopic heterogeneity
