Ukrnafta launched another high-yield well in eastern Ukraine with an initial daily output of over 50 tonnes of oil, the company reported.

“The total depth of the new exploration well is 2,919 meters. The initial flow rate is 51.4 tonnes per day of practically anhydrous oil, water cut is 2-3%,” said company director Serhiy Koretsky.

Ukrnafta explained that its specialists worked with their own drilling rig. During the drilling process, they used their own developments: the department of industrial chemistry and core analysis, based on a basic recipe, developed a drilling fluid that was used to a depth of 2,013 meters.

“This made it possible to reduce the coefficient of cavernousness of the shaft and minimize the cost of chemicals and materials, which saved the company millions of hryvnias,” the company noted, adding that a promising deposit in the Serpukhivske deposits was discovered by a pilot shaft in the range of 2,894-2,898 meters.

The well section revealed three more promising deposits in Serpukhivske and Bashkirske deposits. Therefore, after mining the underlying deposits, the horizontal part of the well will be drilled in order to develop oil reserves in Bashkirske deposits, Ukrnafta shared its plans.

As reported, in early December, Ukrnafta drilled a new directional well with an initial daily oil flow rate of 25-30 tonnes in western Ukraine to explore reserves in the Stry deposits.