Specifications

1.Mechanical Stage Collar
2.API Spec
3.Best service,good quality
4.Anti-rotation mechanism
5.Easily drillable material

Model YFZ-C Mechanical Drill-out Free Stage Collar

1. The circulation ports are mechanically opened by free-fall opening plug.

 

2. After circulation ports are closed, keep building up pressure will enable the sliding sleeves and other accessories to free fall to bottom, eliminating drill-out.

 

3. The stage collar is designed with internal closing structure.

 

The closing sleeve is designed with hold down mechanism.

 

4. Applicable well inclination: ≤25°.