| Verkhnechonskoye field | |
| Country: | Russia |
| Region: | Eastern Siberia |
| Location: | Kataganskiy district, Irkutsk Oblast |
| Offonshore: | onshore |
| Operator: | Verkhnechonskneftegaz |
| Partners: | TNK-BP (68.51%) Rosneft (25.94%) East Siberian Gas Co. (5.48%) |
| Discovery: | 1978 |
| Start Development: | 2002 |
| Start Production: | 2008 |
| Oil Production Bbl/D: | 23500 |
| Production Year Oil: | 2009 |
| Est Oil Bbl: | 1886 |
| Est Gas Bcm: | 95.5 |
| Formations: | Precambrian formations |
The Verkhnechonskoye field is a giant oil field in Eastern Siberia, Russia. The field is located in Kataganskiy district, Irkutsk Oblast, about north-east from Irkutsk. It is considered the largest oil field in Eastern Siberia.
The field was discovered in 1978 and development started in 2002.[1] Pilot operation of the field was started in 2005 and on 15 October 2008, first oil produced at the Verkhnechonskoye field was delivered.[2] As of 2007, total proved reserves of Verkhnechonskoye were of oil equivalent, and proved, possible and probable (3P) reserves amounted to .[3] Natural gas reserves are 95.5 billion cubic meters. In 2009, the field produced through 41 oil wells 1.181 million tons of oil, equal to . The field is operated by Verkhnechonskneftegaz, a joint venture of TNK-BP (68.51%), Rosneft (25.94%), and East Siberian Gas Co. (5.48%).[4]
Produced oil is shipped by an 85km (53miles) pipeline to Surgutneftegaz' Talakan field where it supplied to the Eastern Siberia – Pacific Ocean oil pipeline.[1]