Casing

Casing pipes are connected to each other by means of coupling or non-coupling (integral) threaded connections.

Casing threaded connections provide:

• permeability of columns in wellbore of complex profile, including in zones of intense curvature;
• sufficient strength for all types of loads and the required tightness of the pipe string joints;
• the possibility of passing tools and devices for carrying out technological operations inside the pipe strings.