Alert 04 – 36 Jars Fired with Drill String in Slips


The drill crew was tripping 4” drill pipe in the hole with a whipstock assembly at 1,824 feet. With the drill string suspended in the slips in the rotary and the elevators latched onto the drill pipe, the jars in the hole fired unexpectedly. The drill string “jumped” in the slips several times due to the recoil effect of the drill string. Each recoil resulted in the drill string setting lower in the slips until the elevators caught the load and prevented the drill pipe from possibly falling into the hole.

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