Environmentally friendly technologies used in laying of the pipeline at Messoyakha
Development of the Messoyakha fields (on the Gydan peninsula, Yamalo-Nenets Autonomous Region), has seen the construction of the northernmost underwater pipeline river crossing in Russia, built using directional drilling. This method has allowed the natural landscape around the Indikyakha river to be kept intact, minimising man-made impacts in the laying of the pipeline.
The pressure pipeline running from the Messoyakhskoye fields
Construction of the pipeline (530 mm in diameter and running to a length of 100 km) was initiated in October 2014, connecting the Messoyakha fields with the northernmost point of the Zapolyarye-Purpe trunk pipeline network. For additional security, the pipeline walls are 30 percent thicker where the pipeline crosses the riverbed, increasing to 14 mm. To protect the environment from heat impacts the pipeline is insulated and set in a protective casing (of 1020 mm in diameter) with walls some 16 mm thick.
Further on, the pipeline crosses another river, the Muduiyakha, across which a further underwater crossing will be built. The entire length of the pipeline route will be equipped with fibre optic cable, allowing the ongoing monitoring of its integrity, and prompt response to any violation. It will also be equipped with fire and security response systems, and a video surveillance system.
The Messoyakha group of fields includes the Vostochno (Eastern) and Zapadno (Western) Messoyakhskoye acreages — the northernmost onshore oilfields in Russia. Licenses for prospecting and development at both fields are held by Messoyakhaneftegaz, jointly controlled by Rosneft and Gazprom Neft. Gazprom Neft is the operator on the project.
The Messoyakhskoye fields, first discovered in the 1980s, are located in the Gydan peninsula, in the Tazovsky district of the Yamalo-Nenets Autonomous Region, 340 kilometres north of Novy Urengoy, in Russia’s Arctic zone — a region of considerably underdeveloped infrastructure. Proven C1 and C2 reserves indicate 480 million tonnes of oil and gas condensate, as well as more than 480 billion cubic metres of natural and associated gas. Pilot operations at Vostochno-Messoyakhskoye saw the first oil from this field produced in October 2012.
Within Gazprom Neft, preparations to bring the Messoyakhskoye fields into production are being managed by the office of Messoyakha, part of Gazpromneft Razvitiye, responsible for the management of major projects on behalf of the parent company.