Atteris conducted a technical review on the decommissioning options for the BMG fields. The technical considerations covered both recovery and non-recovery scenarios as well as an extended non-production phase. The review concentrated on the risks associated with different decommissioning methods and decommissioning cost estimates. The objective was to aid the Company to assess technical feasibility of the decommissioning options based on current asset conditions.
The review considered the field layout, conditions of subsea structures, water depth, geotechnical and metocean data. It was considered technically feasible to recover the subsea assets and risks such as lifting point integrity, PLEM/UTA suction forces and release of oily water were noted as part of the key items for consideration. Atteris also presented the available subsea intervention tools that could aid the recovery effort
Recommendations for non-recovery and extended non-production phase were provided, as well as decommissioning cost estimates for the recovery option.
