Valeura Energy Inc., Calgary, will begin testing the Devepinar-1 well in the Thrace basin of Turkey after a fourth test of its Inanli-1 well flowed natural gas and condensate (OGJ Online, Sept. 26, 2019).
The fourth test targeted Eocene Kesan sandstone at 3,681-3,723 m, a gross section interpreted to have 37.6 net sand with porosity above 3% and average porosity of 6.8%.
With artificial lift to assist clean-up after placement of 100 tonnes of proppant, the well was flowed for 10 days. Average net gas output was 306 Mcfd with flow over the final 24 hr of 1.71 Mcfd.
The test yielded condensate at the rate of 23 bbl/MMcf of gas, with 97 bbl/MMcf in the last 24 hr.
Water production was 98 b/d in the last 24 hr and declining.
A planned fifth test of shallower zones will not occur, Valeura said, to ensure the well can be reentered.
With partner Equinor, Valeura is assessing potential of a basin-centered gas accumulation with the Yamalik-1, Inanli-1, and Devepinar-1 wells.
In Devepinar-1, 20 km west of Inanli-1, it will concentrate on testing deeper zones. The well had higher porosities than the Inanli and Yamalik wells through the target reservoir and will be the first deep well to be stimulated and tested in the western end of the basin.