这些砂体具有分布范围小、横向变化快、且互不连通的特点。
These sandstone lenses are characterized by a small range of extention, a rapid horizontal variation and the isolation from one another.
由于扶余油层特定的地质沉积条件，造成河道砂体横向上连通性极差、纵向多层错迭连片。
The bad horizontal communication and longitudinal stack of channel sand is because of the particular condition of geologic sedimentation of Fuyu oil reservoir.
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