The lower formation is consisted of loose limestone, shale and sandstone, with low formation pressure coefficient.
下部地层以石灰岩、泥页岩、砂岩为主，地层疏松，易漏失，属低压高产地层。
The dimensionless average formation pseudo pressure is directly proportional to the dimensionless producing time if the influence of wellbore storage coefficient and skin factor is neglected.
在不考虑井筒储集系数和表皮系数影响的情况下，无量纲平均地层拟压力与无量纲生产时间成正比。
The formation above Dongying group belongs to nor- mal pressure system while the pressure coefficient of Shahejie group is more than 1.
埕海油田二区构造复杂，断层发育，其东营组以上地层属于正常压力系统，而沙河街组压力系数大于1。
The top formation is active and the pressure coefficient is low in WangGu1 well.
王古1井地层压力系数低，上部地层活跃。
However, its function was often lost upon the serious circulation loss occurring to the formation with low pressure coefficient and relatively macro fractures.
但对地层压力系数低且裂缝较大的严重井漏往往失去作用。
However, its function was often lost upon the serious circulation loss occurring to the formation with low pressure coefficient and relatively macro fractures.
但对地层压力系数低且裂缝较大的严重井漏往往失去作用。
应用推荐