Canadian oil and gas exploration company Valeura announced on Monday the successful flow of stable gas in the Inanli-1 well in Turkey’s Thrace Basin.
Each of the four zones tested in the Inanli-1 well successfully showed stable gas production with evidence that there is both fracture and matrix contributions to the gas flow, Valeura said.
Sean Guest, CEO of Valeura said in a written statement that with the completion of the fourth test interval at Inanli-1, Valeura now feels it has a much better understanding of the vertical variability of its tight gas play.
"While more work will be required to understand the implications of this condensate in the shallow zones, we are commencing reservoir and economic modelling based on the gas test results. Given the strong gas price realizations in Turkey and the readily accessible infrastructure through our owned gathering network, we believe there will be zones that can be economic in the longer-term," Guest noted.
"We are particularly encouraged by the stable rates of dry gas flowed from the deeper intervals, as these results exceeded our expectations," he said.
The company was encouraged by the very high condensate yields on the test and is pleased that there were no instances where fluid composition prevented gas flow in Inanli-1, he added.
Subsequent to the completion of this test at Inanli-1, Valeura and its partners now plan to move testing to the Devepinar-1 well where operations are expected to commence within the week.
"With that in mind, we are now moving to Devepinar-1 well to test the deepest intervals there. Early results from the Devepinar-1 will allow us to commence discussions and planning for the next step of the appraisal of our play," he added.
The fourth test targeted an interval between 3,681 meters and 3,723 meters in the Kesan Formation, which was stimulated by placing approximately 100 tonnes of proppant into the reservoir.
According to the company, the flow results of the fourth test were similar to the results of the third test conducted between 3,855 and 3,925 meters.
"Utilizing artificial lift to assist in cleaning up the well, the interval was flowed for 10 days. Average net gas rate over the flowing period was 306 Mcf/d (thousand cubic feet per day), and the rate for the final 24 hours of flow was 171 Mcf/d," Valeura explained.
By Murat Temizer