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 - Videos
Pryor Trust Incident (Oklahoma)
Identifying and responding to weak operational signals
WCI - Video 16-1 - Well Control Event When Using an MPD system
WCI - Video 16-2 - Well Control Event During Completion Installation
IOGP - WCE Alert 21-4
Sharing to be better - Incidents
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
Sharing to be better #20, Well control incident - Drilling 8-1/2" hole section
Sharing to be better #21, Well Control Incident - Failed downhole mechanical isolation barrier
Sharing to be better #22, Serious (yellow) well control incident - Influx during displacement operation
Sharing to be better #23, Plug and abandonment of old subsea well