Plugs & Darts
Plugs & Darts
Plugs and darts act as a vehicle to displace cement during liner completions. When properly landed and latched they act as a back pressure valve to prevent cement from migrating back into the inside of the liner. The drill pipe dart is used to displace cement through the inside of the drill pipe until it latches into the liner wiper plug. Once latched the liner wiper plug acts to displace cement through the inside of the liner until it lands at the bottom of the liner. It then latches into a llanding collar which is placed a few joints above the bottom of the liner.
Click the Image Below to view the plugs & darts:
