Drilling of the Lapgiriai-1 well on the Raiseiniai license onshore Lithuania has started. The primary target of this well is a Silurian reservoir that encountered oil in an adjacent Soviet era well.

The old well, drilled in the 1980's, was never properly produced even though it tested oil to surface. Lapgiriai-1 is being drilled as a 'twin' well to the old well to appraise the reef like feature originally penetrated with a view to conduct a long term production test of the target formation.

The Lapgiriai-1 well is planned to be drilled vertically to a total measured depth of just under 1,200 metres. Drilling operations are expected to last for 40 days.

Tethys Oil has a 26% indirect interest in the Raiseiniai license through a shareholding in Jylland Olie APS.

Tags: Tethys Oil