Sub Surface Release Plug System

Sub Surface Release Plug is installed in the underwater wellhead casing, and the plug release is precisely        controlled by the trigger device to achieve deep-water casing cementing operation.

Feature：

Two separate pump down plugs trigger to launch bottom and top plug. The top and bottom plugs are designed with        self-aligning anti rotation structure, the pump down plugs and the top and bottom plugs are provided with        matching self-locking structure;The pump down plug is designed with multiple sets of outer diameter rubber        bowls, which can be applied to composite drilling tools;The top and bottom plugs adopts differential coloring        design, which is easy to use and observe；The integrated design of swivel equalizer and rubber plugs, which is        maintenance free after system application;plug has strong wear resistance, can achieve good isolation effect,        and easy to drill. The system has good corrosion resistance to water-based / oil-based drilling fluid, and good        corrosion resistance to the marine environment.