The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
2
In the design of sandbasin, the first problem is to select the calculation method of suspended silt deposition rate.
设计沉沙池时，首先要解决的问题之一是悬移质泥沙沉降计算方法。
3
There exist a lot of Neogene meander sand bodies in Bohai Sea basin, and they give an important share of hydrocarbon reserves (or production ) in the east part of China.