Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble.
高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。
Suitable for medium to medium hard formations such as sandstone, limestone and dolomite.
适用于中至中硬地层中使用，如砂岩、石灰岩及白云岩。
Reservoir rocks of lower Paleozoic mainly include dolomite and limestone; reservoir rocks of upper Paleozoic mainly include sandstone reservoir.
下古生界白云岩和灰岩为主要的储集岩类，上古生界则主要以砂岩储层为主。
应用推荐