Wednesday, September 22, 2021

Flash gas compressor reinstalled on Liza Destiny FPSO, system being tested

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The repaired and upgraded flash gas compressor has been safely reinstalled on the Liza Destiny FPSO and a three-phase testing programme is now underway to monitor the performance of the system.

“Following the safe reinstatement of the repaired and upgraded components of the flash gas compression system, the team onboard the Liza Destiny FPSO initiated a comprehensive three-phase testing programme,” ExxonMobil Guyana Public and Government Affairs Advisor, Janelle Persaud said on Wednesday.

She pointed out that over the last few days, the team successfully completed the first two phases, which were intended to verify the effectiveness of the modifications to the equipment and control system logic.

“Pilot level flare was attained during the testing and a significant volume of process and mechanical data collected,” Persaud stated.

She said the final stage of testing will take place this week after removal of temporary instrumentation.

“The third phase involves monitoring the performance of the machine closely in normal, steady-state operation,” she stated, noting that the company will provide an additional update early next week.

The gas compressor had encountered difficulties on the Liza Destiny FPSO during oil production operations on January 27 and was sent for repairs to MAN Energy Solutions in Germany.

A detailed assessment had found that an axial vibration of the compressor rotor was the initiating event that led to the issues.

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