Cause & Consequence
- Handling, lifting or carrying
Incident Location
Any Location Type
Incident Activity
Maintenance
Incident Info Source
ENFORM
Specific Incident Equipment
Single Bolt Rod Clamp
Lessons Identified
Investigation produced the following preventive recommendations:
Single bolt polish rod clamps must not to be used for flush-by or well servicing operations. The single bolt rod clamp is intended to be used as a secondary clamp only for the drive head clamp.
In this incident, the single bolt rod clamp showed considerable wear from continued use, which limited its ability to grip on the rod and caused it to fail when used to support the rod string weight.
Any single bolt clamps, being used only as a secondary clamp, must be inspected and replaced as required.
Incident Recommendations
A procedure will be developed to identify this specific hazard and will be communicated to service providers through safety meetings and hazard assessments.
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