Environmental Statement - Maersk Oil

Hydrocarbon Spills
7 ‐ 4
Balloch Field Development Environmental Statement
28. Offshore crews and supervisory teams are trained and competent.
Section 7 Conclusions
29. Approved OPEPs are in place prior to any activities being undertaken and OPEP
commitments (training, exercises, etc.) are captured in the environmental audit
programme.
30. Well specific control measures include:
Robust BOP pressure and functional testing regime;
Routine Remotely Operated Vehicle (ROV) inspections of the BOP on the seabed,
as well as visual integrity checks whenever BOPs are recovered to the surface;
Appropriate mud weights are used to ensure well control is maintained;
Higher hazard and risk awareness and understanding in light of lessons learned
from the Deepwater Horizon incident.
31. Operations specific control measures include:
Platform import and export facilities are secured by a combination of topside
Emergency Shut Down Valves (ESDV) and Subsea Isolation Valves (SSIV);
Export is ceased from the oil export line from the GPIII following a low pressure
indication on the export line or following a report of a spill at sea which would
prompt a controlled shut down;
Balloch pipelines are protected by pressure indicators and leak detection system.
7.3. OVERALL CONCLUSION
Following the implementation of the mitigation and control measures identified, the long term and
cumulative environmental impacts associated with the proposed Balloch development are considered
to be acceptable.