The Amoca oil field is located in Area 1 of Campeche Bay in the Gulf of Mexico, approximately 1,200km west of Ciudad del Carmen, Mexico. The field is being jointly developed by Eni (65%) and Qatar Petroleum (35%)
The project is a part of the Area 1 development plan, which also involves the development of two other offshore oilfields, Mizton and Tecoalli.
The studies on the reservoir and production testing on the Amoca and Mizton oilfields were performed in December 2017. The Amoca oil field is expected to start full field production by late 2020.
Amoca oil field location
Amoca oil field is located approximately 30km offshore Dos Bocas port in south-east Mexico.
Amoca oil field development details
Amoca oil field will have an unmanned wellhead platform 1 (WHP1), which will be deployed in Contract Block 1 at a water depth of 93ft. The WHP1 will have 12 wells, including eight producer wells and four water injection wells.
The four-deck topsides of the platform will comprise two main decks weighing 2,924t with four-legged jacket and piles weighing approximately 1,785t.
The heavy lift and pipelay vessel Sapura Kencana 3500 will perform multiple operations of cable-laying, installation, and lifting. The vessel features a 10-point mooring system, as well as a cable spooling unit and a shoreside pull-in winch.
The oil and gas output will be processed by a floating production, storage and offloading (FPSO) vessel, which will be equipped with a state-of-the-art modular tensioning system and advanced equipment and systems.
Details of the FPSO
Built in 2009, the 157,667dwt Suezmax tanker Felicity Modec was acquired by Modec from a Belgian ship-owner Euronav for $42m to transform it into an FPSO.
The FPSO, with a disconnectable tower yoke mooring system, will be positioned 10km offshore Mexico at approximately 32m water depth in Area 1.
The FPSO will have the processing capacity of 90,000bopd, 75 million cubic feet gas per day, and 120,000 barrels of water injection per day. The vessel will have a crude oil storage capacity of 900,000 barrels.
Amoca oil field exploration and appraisal
Two appraisal wells, namely Amoca-2 and Amoca-3, delivered positive results during the exploration studies in Area 1 in December 2017. Mexico’s National Hydrocarbon Commission approved the Area 1 development plan in August 2018.
McDermott was awarded the engineering, procurement and construction (EPC) contract for the WHP1 in April 2019. The WHP1 will be constructed by its engineering centre in Mexico City and fabrication yard in Altamira, Mexico.
Designed by Ulstein Design & Solutions, the pipelay vessel Sapura Kencana 3500 will be supplied by Sapura Energy. Frontera and Maritime Developments received the contract for the installation of modular cable lay equipment aboard the vessel in March 2019.
Japanese offshore floating solutions supplier, Modec received the engineering, procurement, construction, mobilisation, installation, operation and maintenance contract of the FPSO in April 2019. The mooring system for the FPSO will be designed and supplied by its subsidiary, Sofec.
Modec subcontracted COSCO Shipyard for the modification of the Felicity Modec tanker into FPSO.
Area 1 offshore development details
Situated at a shallow depth of 33m, Area 1 holds approximately 2.1 billion barrels of hydrocarbons, containing 1.89 billion barrels of world-class oil reserves.
Eni and Qatar Petroleum entered the Area 1 production sharing contract in December 2018. The early production phase of the Mizton field started in July 2019 with the production capacity of 15,000bopd.
The production capacity of Area 1 is expected to reach approximately 90,000 barrels of oil per day (bopd) by 2021.