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Description

During drilling activities in a deep well, a significantly damaged I-beam located below the drilling rig crown block was identified when a melted piece of metal fell to the rig floor. The drill line was spooled incorrectly and had cut almost completely through the I-beam, which was located below the crown block and water table. This could have led to a serious incident.

  • Guards or barriers were not present to prevent the drill line from passing above the water table Ibeam (from the block to the fast-line sheave) when the crown was reeved (threaded).
  • The job safety analysis (JSA) and rig-specific procedures did not identify this risk or the correct routing of the drill line.
  • Personnel, including the supervisor, who were all very experienced, did not identify the incorrect spooled drill line during string up (rig laid down) or subsequent dropped object inspections.

Life Saving Rule

SafeMechanicalLifting.png

Safe Mechanical Lifting:

  • I confirm that the equipment and load have been inspected and are fit for purpose

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