Investigation Report
Synthetic-Base Mud Discharge During Cement-Unit Mixing Equipment Testing
05-14-2009 15:00 G23000 GC/847 Pollution
- BSEE
- Investigation Report
- Unknown
- Environmental protectionHydrocarbon release
- Fluid transfer
- Process pipework and pipelinesStorage tanksValve
- Job safety analysisLockout and tagoutPollution reportingSimultaneous operations coordination
- Upstream oil and gas
- Marine waters
Summary
Investigation of a Gulf of Mexico release during cement-unit mixing equipment testing. Open measuring-tank valves allowed synthetic-base mud to mix with drill water discharged overboard. Four barrels of mud contained 2.12 barrels of base oil. The report records valve lockout, job safety analysis and sequential-operation requirements introduced by the cement company.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Hydrocarbon release; hydrocarbon leak; oil and gas release.
Classifications: Fluid transfer; fluid loading; fluid offloading.
Classifications: Process pipework and pipelines; process piping.
Classifications: Storage tanks; atmospheric tanks.
Classifications: Valve; valves.
Classifications: Job safety analysis; JSA; job hazard analysis; JHA.
Classifications: Lockout and tagout; LOTO; lockout/tagout.
Classifications: Pollution reporting.
Classifications: Simultaneous operations coordination; SIMOPS; simultaneous operations.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Marine waters.