12 – Bottom Hole Assembly

31 December 2007

Alert 07 – 39 Wire Rope Parted Results in a High Potential Near Miss

Alert 07 – 39 Wire Rope Parted Results in a High Potential Near Miss WHAT HAPPENED: While racking back a stand of 6-1/2″ drill collars, the winch
1 December 2006

Alert 06 – 43 Failure of Safety Devices Allowed Casing Stabbing Basket to Fall to Rig Floor

Alert 06 – 43 Failure of Safety Devices Allowed Casing Stabbing Basket to Fall to Rig Floor WHAT HAPPENED: While the rig crew was running a bottom
1 February 2006

Alert 06 – 05 Dropped Bushing Results in Amputation of Toes

Alert 06 – 05 Dropped Bushing Results in Amputation of Toes WHAT HAPPENED: Operation at the time of the incident was pulling out of the hole with
1 January 2006

Alert 06 – 03 High Potential Near Miss / Dropped Lifting Sub

Alert 06 – 03 High Potential Near Miss / Dropped Lifting Sub WHAT HAPPENED: When the driller broke out the lifting sub used to help make up
2 August 2005

Alert 05 – 31 Dropped Stand of Drill Collars Results in Near Miss

Alert 05 – 31 Dropped Stand of Drill Collars Results in Near Miss WHAT HAPPENED: While Pulling Out Of the Hole with the Bottom Hole Assembly, one
1 April 2005

Alert 05 – 15 Improper Use of Iron Roughneck Type Equipment Results in Damage

Alert 05 – 15 Improper Use of Iron Roughneck Type Equipment Results in Damage WHAT HAPPENED: The lower jaw on the Iron Roughneck™ was being used to
3 September 2004

Alert 04 – 36 Jars Fired with Drill String in Slips

Alert 04 – 36 Jars Fired with Drill String in Slips WHAT HAPPENED: The drill crew was tripping 4” drill pipe in the hole with a whipstock
3 June 2004

Alert 04 – 23 Discharge of Synthetic Based Mud Overboard

Alert 04 – 23 Discharge of Synthetic Based Mud Overboard WHAT HAPPENED: Approximately 60 barrels of Synthetic Based Mud (SBM) was discharged overboard when the trip tank
3 April 2004

Alert 04 – 15 Making Up Bit into Bit Sub Results in High Potential Near Miss

Alert 04 – 15 Making Up Bit into Bit Sub Results in High Potential Near Miss WHAT HAPPENED: The floor crew was in process of making up