backing sand
英 [ˈbækɪŋ sænd]
美 [ˈbækɪŋ sænd]
填充砂
双语例句
- Various types of quadrants developed at lower water level, including low water fans, low water wedge, braided channel and lower cutting valley backing sand, will become favorable oil beds, and form subtle trap or compound traps.
低水位期发育的各类扇体，包括低水位扇、低水位楔、辫状水道以及下切河谷充填砂，都可能构成有效储层，并能形成隐蔽圈闭或复合圈闭。