Drift

Sharing to be better

Reducing well control incidents and a focus on well integrity are significant for reducing the risk of major accidents, lost production and higher costs on the NCS.
Background photo

Norwegian Oil and Gas’ Drilling Managers Forum (DMF) took early 2010 an initiative for joint efforts by Norwegian Oil and Gas and NSA (Norwegian Shipowners Association) and established a task force with focus on reducing well incidents. One of the recommendations from the task force is to communicate actual well control incidents that have recently occurred on the NCS so lessons are shared and understood. A number of case histories has now been circulated to all installations.

The key message is to focus on what can be learnt from such events. It is hoped that sharing of such incidents will be helpful in our efforts to avoid or reduce the likelihood and severity of well incidents. Any feedback will be greatly appreciated by the task force.

Feedback can be sent to Drilling Manager Tove Rørhuus, tr@norog.no

Sharing to be better #1, Well control incident in 9,5 inch section
Sharing to be better #2, Well control incident in 8,5 inch section
Sharing to be better #3, Shallow gas incident
Sharing to be better #4, Gas influx from shale
Sharing to be better #5, Well control incident - Completion
Sharing to be better #6, Well control incident – pulling tie-back string
Sharing to be better #7, Drilling 8,5 inch reservoir section, HPHT
Sharing to be better #8, Incident – Drilling of reservoir section
Sharing to be better #9, Shallow gas incident
Sharing to be better #10, Incident - Work-over operations
Sharing to be better #11, Well control incident in 8,5 inch section
Sharing to be better #12, Swabbed kick from shallow reservoir
Sharing to be better #13, Total mud loss followed by kick from a semisubmersible drilling unit in "karstified carbonates"
Sharing to be better #14, Well control incident during plugging
Sharing to be better #15, Well control incident during completion operations
Sharing to be better #16, well control incident during preparation of side-track after plugging
Sharing to be better #17, well control incident during perforation

Sharing to be better #18, Influx while drilling with a Managed Pressure Drilling Unit in use

Sharing to be better #19, Influx in overburden section of (HPHT) exploration well - MAASP at shoe significantly exceeded