Captured this footage during a sliding operation on the rig. Vibration levels were noticeably high, even though we were expecting a smoother run.
High vibration while sliding isn’t uncommon, but it’s always worth digging into the “why.” Some of the possible contributing factors we considered:
- Inefficient Weight Transfer
Sometimes the WOB (weight on bit) doesn’t transfer effectively to the bit—especially in long tangent or deviated sections. That leads to low ROP and increased vibration from bit bounce or micro stick-slip. - BHA Design & Stabilizer Placement
If the BHA isn’t optimized for sliding—like improper spacing between stabilizers, or a stiffer assembly—it can cause increased friction and lateral vibration. The wrong motor bend setting can also contribute. - Formation Interaction
When formation changes suddenly (e.g. interbedded layers or harder streaks), it can trigger vibration—especially torsional (stick-slip) or lateral (whirl). In this case, we suspect some reactive shale was causing erratic bit behavior. - Hole Cleaning & Cuttings Accumulation
Cuttings buildup while sliding can increase drag and vibration, especially in low-angled or deviated sections. This can also impact toolface control and motor yield. - Downhole Motor Issures
Excessive rotor-stator wear or incorrect flow rates can make the motor vibrate more during sliding, reducing efficiency and increasing the risk of tool damage.
We’re currently reviewing the downhole data (shock/vibe, RPM fluctuations, torque signature) to narrow it down.