The Prirazlomnoye oil field in the Pechora Sea is located 60 km off the coast. Recoverable reserves of oil at the field are in excess of 70 million tonnes. The project operator and subsurface licence holder is Gazprom Neft Shelf LLC.
The Prirazlomnaya is a unique platform designed and built in Russia. The platform ensures the safety of all technical operations, including drilling, extraction, storage, preparation and loading of oil.
Extracted oil is held in tanks located in the platform caisson with its 3-metre thick concrete walls lined with a two-layer sheet of corrosion- and wear-resistant plated steel. The caisson's safety margin vastly exceeds actual loads. The platform’s "wet” oil storage method prevents oxygen from entering containers, thereby avoiding the formation of explosive mixtures.
The facility has a zero discharge system that prevents drilling and production waste from being dumped into the sea. Waste is pumped into a special absorption well or, if required, collected in containers and transported to shore for subsequent disposal.
Oil is loaded onto tankers by means of direct loading facilities located diagonally on opposite sides of the platform (south west and north east). Safety is a primary concern and oil is only loaded if all 30 of the required criteria are met simultaneously. The tanker loading line is equipped with an emergency shutoff system that has a maximum response time of seven seconds.
Enhanced ice-class Arc6 arctic oil tankers Mikhail Ulyanov and Kirill Lavrov with a deadweight of 70,000 tonnes, built specifically for transporting oil from the Prirazlomnoye field, allow for year-round delivery of oil from the field. Both vessels are equipped with the dynamic positioning (DP) system. They operate on the double action principle: they are capable of navigating through ice with the stern side forward, providing additional manoeuvrability in challenging ice conditions. The vessels, wearing the Russian flag, are owned by Sovkomflot.
Prirazlomnaya photo gallery