129 – Top Drive

5 July 2000

Alert 00 – 20 Dropped Blocks

Alert 00 – 20 Dropped Blocks WHAT HAPPENED: Crews were preparing to move a rig and, at the time of the incident, the blocks were near the
5 May 2000

Alert 00 – 14 Near Fatal Injury when Pipe Dropped from Elevators

Alert 00 – 14 Near Fatal Injury when Pipe Dropped from Elevators WHAT HAPPENED: Several incidents have occurred where 2-7/8″ drill pipe or 2-7/8″ pup joints have
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 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 March 1999

Alert 99 – 11 Drill Pipe Slips

Alert 99 – 11 Drill Pipe Slips WHAT HAPPENED: 1. Incident No. 1 – Employee caught his hand between the drill pipe slips and the elevators during a
6 March 1999

Alert 99 – 09 Brake Linkage Failure

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 – 03 Traveling Block-Crown Incident

Alert 99 – 03 Traveling Block-Crown Incident WHAT HAPPENED: An incident occurred where the traveling block bumped the crown on a drilling rig. The Crown-A-Matic was properly set