Gazpromneft-Sakhalin, a subsidiary of Gazprom Neft has discovered a new offshore field with estimated reserves of 225million tonnes of oil.
The announcement comes following the completion of the drilling of a prospecting and appraisal well at its Ayashsky licence block, located on the continental shelf of the Okhotsk Sea, western Pacific.
A detailed assessment of the estimated reserves will be prepared by mid-2018.
The decision to drill at the Ayashsky prospective formation was taken on the basis of 3D seismic data.
Exploration data received during offshore works at the Okhotsk Sea was carefully analysed prior to the development of the drilling programme.
The drilling was completed on schedule.
Alexander Dyukov, chief executive of Gazprom Neft, said: “The development of Gazprom Neft’s offshore assets remains a strategic priority for the company.
“We continue the development and exploration of all offshore licence blocks in our portfolio.
“The discovery of a major field in the Okhotsk Sea proves the relevance of our experience and allows us to reassess prospects for developing offshore projects.”
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