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The Liza Unity FPSO departed from Singapore in September (Photo: SBM Offshore)

ExxonMobil’s second FPSO

Liza Unity arrives in Guyana

THE Liza Unity, which was built to be the sec- of oil. Its only producing field is Liza-1, another
ond floating production, storage and off-load- section of Stabroek that came on stream in
ing (FPSO) vessel installed at Guyana’s Stabroek December 2019. The ExxonMobil subsidiary is
block, has arrived at the Liza-2 production site using another FPSO to develop the site.
offshore Guyana. This first FPSO, known as the Liza Destiny,
According to US-based ExxonMobil, which has had to suspend production several times
serves as operator of the block, the FPSO since early 2020 because of problems with its
reached the site in late October. In a statement, flash gas compressor (FGC) unit. ExxonMobil
the company’s ExxonMobil Guyana subsidiary Guyana has had the FGC replaced with a new
said: “The Liza Unity FPSO vessel has arrived in unit, while also having the faulty unit analysed.
the Stabroek block offshore Guyana after trav- Mike Ryan, the ExxonMobil affiliate’s pro-
elling for nearly 53 days and more than 11,000 duction manager, said in late October that his
nautical miles (20,370 km) on its journey from company did not expect to encounter similar
Singapore.” problems with the FGC on the new FPSO. “We
In its statement, the company noted that the recognise the challenges that we had with [the
new FPSO could support up to 220,000 barrels Liza] Destiny’s startup and the flash gas com-
per day (bpd) in oil production capacity. The pressor ... The flash gas compressor is a different
vessel can also handle 400mn cubic feet (11.3mn design on Unity, and we have confidence in this
cubic metres) of associated gas per day and store equipment that we’re going to be able to bring it
around 2mn barrels of crude, it said. up and meet our expectations,” he commented,
The cost of developing Liza-2 is likely to according to a report from OilNOW.gy.
reach $6bn. The project envisions the establish- Equity in the Stabroek project is split between
ment of six drilling hubs at the field and the sink- ExxonMobil Guyana, the operator, with 45%;
ing of around 30 new wells. Hess Guyana Exploration, with 30%; and China
ExxonMobil Guyana went on to say that the National Offshore Oil Corp. (CNOOC), with
Liza Unity would be connected to the spread 25%. As noted above, the partners brought Liza-
mooring before being prepared for testing and 1, their first development project, on stream in
commissioning. The vessel is due to start oper- December 2019. They are on track to launch
ating in early 2022, it added. Liza-2 in early 2022, followed by Payara in 2024
Guyana is currently producing 120,000 bpd and Yellowtail in 2025. ™

Week 44 04•November•2021 www. NEWSBASE .com P9