X1
Transfer
X1 multifunctional sub with stabilizer sections. Short version of the lineup (760 mm). Used in full-string configurations with FRS to damp shocks and vibration in the upper interval.
Transfer lineup — operating effect
Stabilizing sections are kinematically decoupled — they rotate and shift radially relative to the body. Absorb wellbore geometry deviations, cut reactive lateral loads.
Kinematically decoupled stabilizer
Stabilizing sections rotate and shift radially relative to the body. No reactive lateral load transferred to the drill string.
Composite-reinforced bearing module
Adaptive floating bearing section reinforced with composite rings. Damps axial and torsional shocks.
One-piece body
Sub with no threaded connections in the load zone. Wear-resistant hardbanding on the stabilizing blades.
Sizes
| Parameter | 89 | 102 | 127 |
|---|---|---|---|
| Length, mm | 760 | 760 | 760 |
| Body OD, mm | 127.0 | 136.7 | 168.3 |
| OD across blades, mm | 136.7–152.4 | 142.9–152.4 | 212.7 |
| Wall thickness, mm | 10.4 | 10.4 | 12.7 |
| Hydraulic diameter, mm | 134.1–147.6 | 138.7–147.6 | 203.2 |
| Max lateral load, kgf | 3500 | 3500 | 3500 |
| Service life, M revolutions | 5 | 5 | 5 |
When to use
- 01
Full lineup on long wells: FRS + X1 + X6
- 02
Horizontal pairing: X1 + X6
- 03
Suppress stick-slip in the upper drill string
- 04
Compensate local wellbore geometry deviations
Run the numbers on your well
Send your well data and constraints — we'll run T&D modeling and come back with a configuration and the expected impact.