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High flow-rate of deep-strata light crude obtained at Gazprom Neft’s Vostochno-Messoyakhskoye field; northernmost in Russia

Messoyakhaneftegaz, the Rosneft—Gazprom Neft joint venture, has completed of its first deep-strata horizontal production well at the Vostochno-Messoyakhskoye field, with initial inflow of 250 tonnes of oil per day confirming the high potential of developing the deep strata of the Messoyakha fields.

The Vostochno-Messoyakhskoye field is Russia’s northernmost; the full field was commissioned in 2016. The project has had to be developed in the absence of pre-existing industrial and transport infrastructure, with 400,000 tonnes of freight being delivered by water transport and ice roads throughout 2015–2016.

The currently produced high-viscosity oil of the Vostochno-Messoyakhskoye field is pre-heated at a central processing facility (CPF) prior to transportation. Production volumes at the Vostochno-Messoyakhskoye field totalled 3.1 million tonnes of oil in 2017.

The newly tapped deep strata deposits are Early Cretaceous, formed 136 million years ago, and contain lighter crude than the main reservoir under development, located 800 meters underground. The depth of the new well, with two pilot boreholes, runs to 3.3 kilometers, with a total length of 4.4 kilometers.

The first of the Messoyakha-group fields—the Zapadno- (Western-) Messoyakhskoye field—was discovered in 1983, and the second—the Vostochno-Messoyakhskoye—in the 1990s. These are the northernmost onshore fields currently under development in Russia. Complex underlying geology, however, together with the absence of any transport infrastructure, meant development at Messoyakha was delayed until the second decade of the 21st century.

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