• Published: 14 Jan 2014
  • Incident ID: 3482

Beatrice Alpha Test Separator Line Leak

Cause & Consequence

  • Failure of vessels or pipework
Incident Consequence
Hydrocarbon release

Incident Location

Fixed Installation

Incident Activity


Specific Incident Equipment

2" Bore dead leg close to the test separator.

Lessons Identified

  • Concerns were raised because we could not see from the events summary that all ESDVS, wing valves and other ESD equipment had operated as expected.
  • It was clear after the event that the indication status for critical valves was poor and a known issue but nothing had been done formalle about this; Thus it was reliant on the CRO being aware of the plant status. This was not always obvious.

Incident Recommendations

  • Investigate why a safety critical element was out of commission without an appropriate ORA and act on the identified rooy causes
  • Investigate why both ESDV's had been tested and recorded as failed but had not been adequately reparied or replaced and act on the identified rooy causes
  • Identify the cause of failure of the two ESDV's (ESV 30011-1 & ESV 30011-2) and take appropriate action
  • Review inspection details, corrosion risk assessment and other data relevant to the management of corrosion of this line. Take appropiate action based on this review
  • Complete the dead lef register and put a programme in place for the management of dead leg integrity
  • Determine whether the loss of fluids to both the test separator and the leak are in line with the inventory from the wells (to the known closed in points)
  • Review criticality of all manual operational valves and key isolation valves to form the basis of a cost/risk reduction benefit analysis to identify priorities for change-out

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