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2022 2nd Alert Hipo#08 Drill pipe slid out from pipe cat basket opening and dropped
while laying down 4” Drill Pipe singles, using Pipe-Cat (hydraulic catwalk system), BX Hydraulic elevator & Top drive. After lowering the drill pipe joint on the pipe cat trough and adjust the skate, Driller unlatch the BX elevator and lower it down. Once drill pipe joint released from elevator, it came out of skate hood opening and slide all the way down to ground and rested on pipe racks. Red zone was fully implemented. No injury and no damages.
Ensure to adjust pipe cat skate hood height before each trip to accommodated tubular size. Ensure to release the elevators only when the tubular is completely supported by the trough Always refer DOP to refresh job steps. Maintain No-Go zone below catwalk at all times while operating pipe cat Install Hard barrier on pipe cat skate on all units to avoid any potential drop. Adjust pipe cat skate hood height according to tubular size in use.
Red zone and No-Go zone management was fully implemented (verified by CCTV). Skate hood was not adjusted to accommodate 4” Drill Pipe. The adjustment of skate hood details mentioned in DOP but not discussed in TBT and JSA. Driller and Floor hands trained for operating pipe cat Driller failed to identify the elevator is not fully opened before lowering it on this specific joint
Category:
Second Alerts
Document Type:
Safety
Format:
pptx<br/>
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