Specifications

stage collar
1. Open through pressure difference.
2. Inner closing structure
3. Non rotation and easy drill-out

Stage Collar Accessories

1. All accessories are made of easily drillable rubber and aluminum alloy.

 

 

2. The free-fall opening plug is filled with weighted material to reduce free-fall time.

 

 

3. The first-stage wiper plug is used for bumping during the first stage cementation.