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2022 2nd Alert Hipo#14 Dropped MDW tool
On 08.02.2022 at 2034hrs drilling of 12 ¼”section was in progress. The MWD tool was prepared on the ground and picked up to the rig floor using the crane. At the rig floor, the elevator was latched on the lifting sub and the top sling was removed. A rope had been attached to the elevator as an aid to disengage the elevator from the lifting sub and make up TDS to continue drilling. The crane and the Driller started picking up the tool. While picking up the tool, the rope got caught by the safety clamp. The tension built on the rope opened the elevator and as the result one end of the tool fell on to the rig floor from the height of 3m while the other end was rigged to the crane. No injuries. No equipment damage.
Don’t use rope to open the elevators from the rig floor Always maintain zone management and be aware of the line of fire hazards Always perform pre-task risk assessment and implement controls Always hold pre-task safety meeting and review SOP Always intervene and exercise STOP Work Authority Always ensure adequate supervision STOP! Never use the rope and/or unlatch elevator until you make it up to Top Drive
The length of the tool was 10.46m. The weight of the tool was approx. 600kg. The entangled rope pulled the elevator. The elevator opened and the tool fell onto the rig floor No intervention was made to stop the job and free the entangled rope as it was not seen The SOP was not adequate and did not cover all the steps of the task The Zone management was maintained. No one was standing in the line of fire The dynamic risk assessment was not performed Supervision of the task was inadequate


Category:	Second Alerts	Document Type:	Safety
Format:	pptx<br/>	Viewers:	7
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