A520099 - Report - MRIR - Woodside Energy - Persephone Drilling And Subsea Installation Activities - Drilling And Completions

Written by Claude Haiku 4.5 from the extracted text on 27 Feb 2026. It can miss or misread redacted and scanned pages. Check the source before relying on it.

Woodside Energy reported a dropped objects incident during drilling and completions operations at the Persephone field in September 2016. On 14 September, a fairlead pin and grating fell to the seabed from the Ocean Apex MODU during anchor pretensioning operations. The incident breached Environment Plan Objective 22, which requires no significant dropped object incidents in operational areas. Woodside immediately halted operations, confirmed rig stability and safety, and relocated the vessel to a safe handling zone. The dropped objects were recovered on 16 September. Corrective actions included reviewing fairlead installation procedures, commissioning external third-party technical assessment of the fairlead system, and debriefing all crews involved in the incident to prevent recurrence.