6 December 1999
Alert 99 – 36 Traveling Block/Power Swivel Collision with Stand of Pipe WHAT HAPPENED: A fully retracted travelling block and power swivel, during its descent, collided with
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- Weather
6 October 1999
Alert 99 – 32 Top Drive Swivel Stem Parted WHAT HAPPENED: The rig experienced a drilling break. While picking up the drill string to check for flow,
6 October 1999
Alert 99 – 31 High Pressure Release of Trapped Nitrogen WHAT HAPPENED: Following the foam cementation of 20″ (50 cm) casing in deepwater from a semi-submersible rig,
6 October 1999
Alert 99 – 30 Marine Riser Buoyancy WHAT HAPPENED: While pulling the first section of marine riser through the drill floor, a section of buoyancy module weighing approximately
6 August 1999
Alert 99 – 24 Cementing Casing WHAT HAPPENED: After running approximately 1,600 feet of 8-5/8 inch casing a floorhand climbed onto the top of the casing and cementing
6 June 1999
Alert 99 – 18 Power Tong Incident WHAT HAPPENED: The power tongs became stuck while tripping out of the hole. The floorman, who had his back to
6 March 1999
Alert 99 – 10 Manual Tong Safety WHAT HAPPENED: The IADC Health, Safety and Environment Committee’s Safety Engineering by Design Sub-committee has identified the following concerns and recommendations
6 March 1999
Alert 99 – 09 Brake Linkage Failure WHAT HAPPENED: The drill crew was preparing to pull the drill string from the well to log it. The drill
6 January 1999
Alert 99 – 04 Rig Tong Snub Lines WHAT HAPPENED: During an inspection on a rig, the rig company found that the rig was using incorrect size
