77 – Rig Floor

6 December 1999

Alert 99 – 36 Traveling Block/Power Swivel Collision with Stand of Pipe

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
6 October 1999

Alert 99 – 32 Top Drive Swivel Stem Parted

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

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

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

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 July 1999

Alert 99 – 23 Unsecured Cover Fractures Arm

Alert 99 – 23 Unsecured Cover Fractures Arm WHAT HAPPENED: While rigging up a rig, a floorman working with members of his crew noticed a cover falling
6 June 1999

Alert 99 – 20 Unloading Casing Elevators

Alert 99 – 20 Unloading Casing Elevators WHAT HAPPENED: While preparing to run casing on an offshore platform, the order was given to bring a basket containing the
6 June 1999

Alert 99 – 19 Top Drive Incident

Alert 99 – 19 Top Drive Incident WHAT HAPPENED: A drilling rig recently experienced a major incident when the gooseneck and kelly hose became completely detached from the
6 June 1999

Alert 99 – 18 Power Tong Incident

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