Gazprom Neft is preparing to drill a second well to appraise its Neptune discovery in the Okhotsk Sea in far eastern Russia after increasing the resource assessment by 60% (OGJ Online, Oct. 4, 2017).
The company calls Neptune, on the Ayashsky license block in 60-70 m of water 55 km northeast of Sakhalin Island, its “most important discovery of 2017.”
Its new estimate of C1+C2 reserves, which under the Russian system includes “preliminary reserves,” at 415.8 million tonnes of oil equivalent.
Gazprom Neft said its subsidiaries have cored and logged the discovery well, studied fluids, and built a geologic model.
The Ayashsky block is part of the Sakhalin III project.
