Sakhalin I Onshore Processing Facility is an oil & gas processing facility which processes 34,000 metric tons (250,000 barrels) per day crude oil and 22.4 million m3 (800 million ft3) per day gas produced from the Sakhalin I fields (Chayvo, Odoptu and Arkutun-Dagi).
Located off the north-eastern shore of Sakhalin Island, the Sakhalin-I Project was developed within the framework of a product sharing agreement signed between a consortium of Russian, Indian, Japanese and U.S. companies and the Russian government. Signed in 1996, the agreement covered the Chayvo, Odoptu and Arkutun-Dagi fields where potential recoverable resources were 307 million tons of oil and 485 billion m³ of natural gas. The crude oil is stabilized for shipment to the international market (through De Kastri Oil Export Terminal built by ENKA) and gas is separated for re-injection to the field to maintain reservoir pressure, or treated and supplied to the Russian domestic market.
In May 2005, ENKA was awarded the contract for the installation of the mechanical and piping systems for the Onshore Processing Facility by Fluor Daniel Eurasia Inc. the EPCM Contractor, on behalf of Exxon Neftegas Limited.
ENKA completed the works at Onshore Processing Facility by the end of December 2006, two months ahead of schedule with 800 personnel at peak and a total of 2.8 million person-hours without any lost time incident.