Proppant
From Wikimarcellus
Proppants are porous materials such as sand or ceramic beads that are used to prevent newly created fissures and fractures in the shale rock from closing up once it has been hydro-fractured.
Proppants are porous materials such as sand or ceramic beads that are used to prevent newly created fissures and fractures in the shale rock from closing up once it has been hydro-fractured.