Interim Report on Patterson Oklahoma Blowout

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Interim Report on Patterson Oklahoma Blowout

13 October 2018

After some comments on Linkedin regarding the Patterson Blowout that occurred in Oklahoma back in January this year, which stated that they were drilling the well underbalanced. I tracked down the interim report of the incident on the internet.

They indeed had an RCD installed and attempted to increase the hydrostatic pressure once the bit was in the vertical section of the well and then tripped out of the hole.

Have a read it makes for interesting reading.

Think well control barriers and procedures for monitoring the primary barrier.

What would you have done different