McDermott-BHGE score Greater Tortue Ahmeyim LNG job

McDermott International and Baker Hughes, a GE company, have been awarded deals by BP for the Greater Tortue Ahmeyim natural gas project, located offshore Mauritania and Senegal.

McDermott said in its statement that the deals are for the subsea umbilicals, risers and flowlines (SURF) and subsea production system (SPS) equipment for the project.

McDermott was awarded the engineering, procurement, construction and installation (EPCI) SURF contract, and the company plans to use its upgraded Amazon vessel, DLV 2000, North Ocean 102 (NO 102) and third-party vessels to support installation scheduled to begin in late 2020.

McDermott-designed pipeline and riser structures will be fabricated at its yard in Batam, Indonesia.

BHGE will provide five large-bore deepwater horizontal xmas trees (DHXTs), a 6-slot dual bore manifold, a pipeline end manifold, subsea distribution units (SDUs), three subsea isolation valves (SSIVs), diverless connections and subsea production control systems, specifically designed to enable the future integration of additional wells for the first phase of the development.

These latest awards follow an initial front-end engineering and design (FEED) phase, awarded in March 2018, during which BHGE and McDermott worked together to define the technology and equipment scope for a four-well development phase.

Project management and engineering teams from BP, BHGE and McDermott will remain co-located at McDermott’s London offices for this next phase.

BP and its partner Kosmos Energy, reached the final investment decision on the project in December last year.

The Greater Tortue Ahmeyim project will produce gas from an ultra-deepwater subsea system and mid-water floating production, storage and offloading (FPSO) vessel, which will process the gas, removing heavier hydrocarbon components. The gas will then be transferred to a floating liquefied natural gas (FLNG) facility at a nearshore hub located on the Mauritania and Senegal maritime border.

The FLNG facility is designed to provide circa 2.5 million tonnes of LNG per annum on average, with the total gas resources in the field estimated to be around 15 trillion cubic feet.

Project execution activities are expected to commence in the first quarter of 2019, with first gas expected in 2022.

BP Gas Marketing has been selected as the sole buyer for the investor partners’ LNG offtake for Tortue Phase 1.