Equinor and Transocean should undertake varied enchancment measures following a evaluate of managed stress drilling operations involving the semisubmersible Songa Equinox on the Troll oil province within the North Sea.

The Petroleum Safety Authority (PSA) performed an audit to confirm that the 2 firms, together with Enhanced Drilling and different drilling and nicely service suppliers, have been planning and executing managed stress drilling (MPD) operations utilizing the Controlled Mud Level (CML) drilling technique in compliance with rules and outlined requirements.


This included acquisition, processing, and use of information from MPD operations for steady enchancment and danger discount.

The audit recognized poor performance for drawing off gasoline volumes which will ascend return strains within the CML system. It additionally highlighted unclear necessities for licensed nicely management competence in respect of particular person roles.

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Equinor and Transocean should reply by Oct. 25 on how they plan to deal with these points.

Source: www.offshore-mag.com

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