Dual wiper plugs substantially increase cement slurry integrity by providing a barrier on each end of the cement slurry while the cement is pumped through the casing. Two drill pipe darts are incorporated to provide a protective barrier for the cement in the workstring while wiping the inside of the workstring. The darts then launch the appropriate casing wiper plug.
|Liner / Casing (in.)||Minimum ID (in.)||Top Dart No-Go (in.)||Lower Dart No-Go (in.)||Bump Pressure (psi)|
|9-5/8 & larger||2.313||2.500||2.370||4,000|