The Yetagun gas and condensate field straddles blocks M12, M13 and M14 in the Gulf of Martaban, Andaman Sea, covering an area of approximately 24,130km². The field is estimated to hold three trillion cubic feet of gas and 80 million barrels of condensate in reserves.
Petronas Carigali Myanmar holds a 40.91% interest and operates the field. The other working partners in the field include Myanmar Oil and Gas Enterprise (MOGE, 20.45%), PTTEP International Limited (PTTEPI, 19.32%,) and Nippon Oil Exploration (Myanmar) (19.32)%.
The Yetagun field was discovered in December 1992. The field development activities started in 1996, construction of pipeline and associated facilities were performed in 1998 and 1999, and commercial production started in May 2000. The field is expected to continue production until 2030.
Sanctioned in late 2012, the development of the Yetagun North satellite field is close to completion.
The Yetagun field was initially developed by Premier Oil, the former operator, with an investment of $650m. Premier and its partners were earlier awarded the licences for M13 and M14 in 1990 and Block M12 in 1992. Petronas gained operatorship of the blocks in September 2004.
The development involved the construction of the Yet A wellhead platform, Yet B processing platform, the leased Yetagun floating storage and offloading (FSO) vessel, and installation of an approximately 202km-long offshore pipeline and a 270km-long onshore pipeline, including an operating centre and metering station for the latter. The leased FSO, owned by SBM Offshore, has a storage capacity of 606,000 barrels (bbl).
Kirinskoye is the first offshore field in Russia to utilise a subsea system for natural gas production.
The 13,708t Yetagun booster compression platform (Yet C) was commissioned in July 2012, while the upgrade of the field’s process systems, being performed by Petro6 since 2009, is still in progress.
Natural gas produced from the field is supplied to Petroleum Authority of Thailand (PTT) through the Taninthayi Pipeline, whereas the condensate from the field is stored in the Yetagun FSO vessel and sold to both domestic and international customers.
The Yetagun North Field is located 12km north-east of the main field. The satellite field’s development involves the installation of the new Yet D WHP, which is tied to the existing processing facilities, and drilling of two production wells. Yetagun North is estimated to produce 70 million cubic feet a day of gas.
The project further involves the installation of a 10in diameter and 11.2km-long pipeline from Yet D to the existing Yet C platform, host tie-in works and modification works on the Yet B and Yet C platforms.
The front-end engineering design (FEED) phase for the project was completed in the third quarter of 2012. The drilling of the two development wells was completed and the installation of the new four-legged WHP and pipeline was 98.6% completed as of September 2014.
The engineering, procurement, construction, installation and commissioning (EPCIC) contract for the Yet D WHP was awarded to Larsen & Toubro (L&T) in January 2013. L&T has subcontracted Hyundai Heavy Industries (HHI) to perform the transportation and installation of the Yet D structures and to install the pipeline between the new platform and the existing Yet C platform.
The Yet C platform’s superstructure was built by Nippon Steel Engineering’s Marine Engineering & Construction Division, while the jacket was built by Nippon Steel Batam Offshore Service (NS Batam).
The conversion of the Yetagun FSO from a supertanker was performed by Keppel Shipyard. Other contractors involved in the offshore field development include Petrofac, SapuraKencana, Kvaerner and Technip.
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