IOGP Well Control Incident Lesson Sharing

The International Association of Oil & Gas Producers (IOGP) Well Control Incident lesson sharing system was established as a means of notifying fellow IOGP members and the wider community of the lessons learned from well control incidents and near misses. The sharing of these lessons will help to promote learning and avoid the repetition of similar errors. The result will move the industry to a higher level of well control safety. IOGP is grateful for all contributions and the continued support of the Well Control Incident Database reporting system.

A small number of the alerts are restricted to IOGP member companies. The full set of lesson sharing reports is available to IOGP member companies at

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19 Records Found
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2017 Oct

Several contributing factors add up to a NAF discharge overboard

2017 Jul

Shallow Water Flow in Land Well

2017 Jul

Break of formation in a narrow mud weight window drilling. Well controlled using the modified wait and weight method

2016 Dec

Misinterpreted swabbed kick from shallow reservoir leads to delicate well control situation

2016 Dec

Wrong circulating volume calculation leads to gas in drilling riser

2016 Nov

P&A: Trapped gas released when punching tubing

2016 Jun

Barrier verification missed: Open fluid loss valve leads to well control incident

2016 May

Well control event when using an MPD system

2015 Nov

Reduction of fluid density based on pressure points measured in the reservoir leading to kick

2015 Sep

Well kick due to liner top seal failure

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