First results ofpilot development ofthe Messoyakha project have been announced. Under the project, well tests began at two well pads last year. The results show that the actual rates of the five horizontal producing wells drilled last year exceeded the expected value byan average of 17 percent. The maximum oil rate reached 250 tons per day.
The well tests confirmed that t horizontal drilling may be the best development scenario for the Messoyakha fields. The exploration data gathered in 2012 has produced more accurate geological models ofthe field and more detailed reservoir modeling than previous studies. The modeling work was a joint effort by Gazpromneft NTC and Halliburton.
In 2013 the pilot project will continue, with five more development wells to be drilled. It is also planned to put in five exploration wells for a better understanding of the field. The data obtained through drilling will shed more light on the geologic structure of the Messoyakha group of fields and help conduct pilot work atthe new sites inorder tosubsequently prepare optimal strategic plans for developing the fields and their infrastructure. Full-scale production at the Messoyakha project will begin after construction of the Arctic Circle-Purpe trunk oil pipeline.
The group of Messoyakha fields includes the East Messoyakha and West Messoyakha areas. The licenses to both areas belong to CJSC Messoyakhaneftegaz, which Gazprom Neft and TNK-BP control on an equal basis. Gazprom Neft acts as the project operator.
The fields were discovered in the 1980s, and are the furthest north of Russia’s known oil fields on land. The Messoyakha group islocated onthe Gydan Peninsula, in Tazovsky District of Yamalo-Nenets Autonomous Okrug, 340 kilometers north ofNovy Urengoy, inthe arctic climatic zone in aregion with undeveloped infrastructure.
At present, 57 exploration wells have been drilled atMessoyakha group offields with aspacing of 3-8 kilometers. Most of the reserves consist of heavy, high-viscosity oil.