Enwell to advance Ukraine license development plan

Enwell Energy PLC will continue its plan to develop the Svystunivsko-Chervonolutskyi (SC) exploration license in the Poltava region of Ukraine. Strong flow rates at the SC-4 well demonstrate the potential of the license area, which will be developed “as circumstances permit,” said company chief executive officer Sergii Glazunov. 

Development is expected to include installation of flow lines and gas processing and production infrastructure and the drilling of additional wells.

SC-4 is the company's first well on the license and is primarily an appraisal well, targeting production from the V-22 horizon in the Visean formation. The well was spudded in August 2021, and, after a period of suspension due to the conflict in Ukraine, was drilled to its final depth of 5,585 m (OGJ Online, Mar. 15, 2022). Three intervals, at drilled depths of 5,530-5,533 m, 5,483-5,486 m, and 5,416-5,419 m within the V-22 Visean formation were perforated and underwent initial testing.

The two former intervals flowed gas, but not at a sustained rate. However, the latter interval, which was the primary target for the well, demonstrated strong productivity and stabilized flows. Accordingly, this interval underwent more extensive testing, using a variety of choke sizes, and produced at a stabilized flow rate of about 3 MMscfd gas and 3 b/d condensate (535 boe/d in aggregate). The well will now be suspended for future production.

The well was intended to also explore the shallower V-16 and V-21 Visean horizons. However, as the primary target of the well in the V-22 formation produced a stabilized flow, testing of these shallower horizons was not considered necessary at the present stage of development as it is intended that the V-22 horizon will be put on production once surface infrastructure is completed.