The Urengoyskoye oil, gas and condensate field was discovered in 1966 in the northern part of the Tyumen Region. With its initial C1+C2 gas reserves totaling 10.9 trillion cubic meters, the field ranked as the world’s largest at the time.
Within a short timeframe, the Urengoy oil, gas and condensate complex was created in the harsh natural and climatic conditions of the Extreme North. Gas production started on April 22, 1978.
At present, the Urengoyskoye field prospects hinge on the development of hard-to-reach Achimov deposits.
The C1 reserves of the Achimov deposits in Gazprom Dobycha Urengoy’s fields amount to over 1 trillion cubic meters of gas and 400 million tons of condensate.
The Achimov deposits lie at depths of some 4,000 meters and have a much more complex geological structure than the Cenomanian (1,100–1,700 meters deep) and Valanginian (1,700–3,200 meters) deposits. In addition, the Achimov deposits are characterized by an abnormally high formation pressure (over 600 atm), a multiphase structure, and the presence of tectonic and lithological screens and heavy paraffins.
First pilot block
In 2003, Gazprom Dobycha Urengoy (a wholly-owned subsidiary of Gazprom) and Wintershall Holding (a wholly-owned subsidiary of BASF) set up the Achimgaz joint venture to develop the first pilot block (Block 1A) of the Achimov deposits in the Urengoyskoye field.
In 2008, Achimgaz commenced pilot production from Block 1A.
In 2011, the block was brought into commercial production.
The annual design capacity of Block 1A is over 9.6 billion cubic meters.
Second pilot block
In 2009, Gazprom started independently producing gas from the second pilot block (Block 2A) of the Achimov deposits in the Urengoyskoye field.
Upon reaching its design capacity, Block 2A will annually yield 8.7 billion cubic meters of gas.
Third, fourth, and fifth pilot blocks
At present, Gazprom is preparing the third (3A), fourth (4A), and fifth (5A) pilot blocks for development.
After the five blocks reach their full capacity, the overall gas output will be around 36.8 billion cubic meters per year.
In 2015, Gazprom and Wintershall inked the Agreement regarding an asset swap deal. As a result, Gazprom raised its share in WINGAS, WIEH, and WIEE to 100 per cent and received a 50 per cent stake in WINZ. Wintershall, on its part, received 25.01 per cent in the project for the exploration and development of Blocks 4A and 5A of the Achimov deposits in the Urengoyskoye field.
In 2016, Gazprom and OMV signed the Basic Agreement regarding the asset swap. Upon completing the deal, as set forth in the document, Gazprom will receive a 38.5 per cent stake in OMV Norge AS, a company focused on geological exploration and production in Norway. In exchange, OMV will obtain a 24.98 per cent stake in the project for developing Blocks 4A and 5A of the Achimov deposits in the Urengoyskoye oil, gas and condensate field.