oil drilling cement plug

oil drilling cement plug CEMENT BOTTOM PLUG & CEMENT TOP PLUG Bottom plug (Pumpdown plug) & Top plug (Liner wiper plug), thespecial tool for pumping slurry and releasing plug.Two types of cementing plug are typically used on a cementing operation as below. * cement bottom plug (PUMPDOWN PLUG) The cement bottom plug (Pumpdown Plug) has a series of four rubber wipers of different sizes and eachallows the plug to wipe the inside of tool joints and liner setting string. It performs well in highly-deviated and horizontal setting string. The plug is designed to seat securely into the wiper plug. The two plugs then move as one down the liner to the landing collar. * cement top plug (LINER WIPE PLUG) The Liner Wiper Plug may be shear-pinned on the bottom of the setting tool. The conjunction with pumpdown plug keeps mud to be separated from cement and removes the cement from the inside of the liner.BOTTOM PLUG (PUMPDOWN PLUG)