Monday, February 6, 2023

UK-based firm to supply titanium pumps for Guyana’s largest capacity FPSO

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Amarinth, a world-leading, net-zero designer and manufacturer of low lifecycle cost centrifugal pumps and associated equipment, has won a further order from VWS Westgarth for two titanium API 610 OH2 pumps for use aboard the FPSO One Guyana which is destined for the Yellowtail development project, offshore the South American country.

Dutch floater specialist SBM Offshore has been contracted by ExxonMobil Guyana to build and operate the FPSO.

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The Yellowtail development project comprises of six drill centres and up to 26 production and 25 injection wells. Located some 200km offshore Guyana, the deepwater wells will be tied back to the One Guyana FPSO vessel for processing. The One Guyana FPSO will perform produced water treatment functions as well as oil separation and gas injection. It will have an optimum production capacity of 250,000 barrels per day (bpd) of oil and a storage capacity of two million barrels of crude oil, gas treatment capacity of 450 million ft³ a day, and water injection capacity of 300,000 bpd.

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VWS Westgarth approached Amarinth for the two titanium API 610 OH2 chemically enhanced backwash pumps following the successful delivery of similar pumps to the company by Amarinth for two FPSO vessels operating off Brazil.

To handle the highly corrosive fluid, all wetted parts of the pumps will be manufactured in titanium, including the casings, impellers and shafts. Titanium is a difficult material to work with and must be cast under a full vacuum using copper crucibles to prevent the molten titanium attacking the crucible walls. The UK has one of only a few foundries in the world with the capability to cast the large titanium components necessary for the pumps. In addition, Amarinth has a strong relationship with its supply chain enabling it to procure hard to source titanium components.

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The API 610 OH2 pumps will be ATEX Zone 2 certified for hazardous areas with IECEx certified motors. With very limited space within the FPSO vessel, the design includes a bespoke baseplate that incorporates a local control station within its footprint. The pumps will be supplied on a tight 38-week lead time, which is necessary to fit the FPSO build which is being undertaken in China and combines the new build, multi-purpose hull with several standardised topsides modules.

Oliver Brigginshaw, Managing Director of Amarinth, commented: “We are delighted that VWS Westgarth has placed a further order with Amarinth for these titanium API 610 OH2 pumps. This builds on our successful delivery of a previous order to VWS Westgarth and further underlines our capabilities in supplying API 610 pumps, manufactured in exotic alloys, which will operate reliably in the extremely arduous conditions experienced on FPSO vessels.”

Amarinth provides services primarily for the offshore and onshore oil and gas industries; nuclear and renewable energy generation; defence; desalination; process and industrial markets.

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