The first Russian offshore platform, Piltun-Astokhskoye-A (PA-A) — known as ‘Molikpaq’ after the Inuit word for ‘big wave’ — started year-round production in December 2008 and had an average daily production rate of 6.72 thousand tonnes (49.49 thousand barrels) of oil and 0.83 million cubic metres of associated gas in 2016. At the end of 2016, the operating well stock of the Molikpaq platform included 15 wells, five water injection wells and one intake well for re-injecting drill cuttings back into the reservoir.
At the Lunskoye-A platform, gas is produced from the largest diameter wells ever drilled in Russia. In 2016, two additional production wells were drilled and completed, bringing the total number of wells to 15. The platform’s average daily gas production rate in 2016 was 45.68 million cubic metres per day.
Piltun-Astokhskoye-B (PA-B) is the biggest offshore platform in the Sakhalin-2 project. At the end of 2016, the PA-B platform had 13 production wells, seven water injection wells, and two cutting re-injection wells. The platform’s average daily production rate in 2016 was 3.94 thousand tonnes (29.05 thousand barrels) of oil and 1.17 million cubic metres of gas.
A 300-kilometre undersea pipeline network links the three platforms to an onshore processing facility. From there an onshore system of 1,600 kilometres of pipelines takes the oil and gas to an LNG (liquefied natural gas) plant and oil export terminal, both at the Prigorodnoye production complex at Aniva Bay in the south of the island.