DART-FRIENDLY BUMPER SUB PROMOTES RELIABLE LINER INSTALLATION
Pressure-tested prior to every job, our bumper sub is friendly to cementing equipment and service technicians.
Innovative Features
- Avoids small internal diameters and square shoulders at internal transition points which limit compatibility with drill pipe wipers or darts
- Accommodating design helps technician determine neutral weight of drill throughout liner deployment
| DP Size (in.) | Tool ID (in.) | Tensile Rating (kips) | Compression Rating (kips) | Torque Rating (ft-lbs) |
| 3-1/2 | 2.25 | 250 | 390 | 20,020 |
| 4 | 2.25 | 250 | 390 | 20,020 |
| 4-1/2 | 2.75 | 770 | 790 | 31,600 |
| 5 | 2.75 | 770 | 790 | 31,600 |
