Valeura Energy Inc expects to resume testing of on its Yamalik 1 NFW on the F18-c (Banarli) Deep licence in July 2018. Equipment, including a snubbing rig and a production test unit, have started to arrive on location and well operations are expected to begin in the coming weeks. The objective is to drill out the bridge and flow-through plugs in the well and flow all four previously tested intervals in a commingled fashion within the 5.5" production casing string. The company is then planning to immediately tie-in the well to existing production facilities via a new pipeline which is nearing completion. Tie-in will allow for gas sales and long-term testing.<P />In mid-January 2018, Valeura had suspended testing operations on the Yamalik 1 NFW due to limitations with the surface testing equipment, which could not cope with flowback during milling operations given the combination of high-pressure gas, condensate, frac sand and milling debris. The Yamalik 1 NFW was spudded in the NW Turkish province of Tekirdag (District I) on 13 May 2017 by the KCA Deutag T207 rig and reached a final TD of 4,196m in July 2017. A comprehensive testing programme, comprised of four production tests with two frac-stages for each test interval, was carried out in November and December.<P />As part of the third and fourth tests, fracs were completed in the Eocene Kesan formation to access a combined 92m of indicated net gas pay. The third test was carried out over a depth interval from 3,488m to 3,635m, with the well being produced for a total 37 hours. Over the final 24 hours of the test, the well produced at an average restricted rate of approximately 0.9 MMcfg/d and 20-30 bc/d. The fourth test was carried out over a depth interval from 3,488m to 3,635m, with the well being produced for a total 41 hours. Over the final 24 hours of the test, the well produced at an average restricted rate of approximately 0.4 MMcfg/d and 30-50 bc/d. Combined with the results from the first and second tests, the well tested an aggregate 24-hour rate of around 2.9 MMcfg/d, which exceeded expectations.<P />The estimated all-in cost of the Yamalik 1 testing programme is US$ 10.3 million, which will be funded by Statoil. The well forms part of Statoil's Phase 1 commitment under the Banarli Deep Rights Farm-in, which the companies completed in early January 2017. Under the agreement Statoil has the option to earn 50% equity in the deep formations of the Barnali licences (F18-c and F-19-d1 & d4) by investing in a three-phase exploration programme that includes payments and carried costs of at least US$ 36 million. The total cost for drilling, coring, logging and casing Yamalik 1 is US$ 12.85 million.<P />Yamalik 1 was designed as a first test of a deep, basin-centred gas play concept in the Thrace Basin. The key objectives of the well were to prove the presence of reservoir rock, confirm that the encountered reservoirs are over-pressured, and to demonstrate that there are significant sections of the reservoirs which are gas-saturated. Valeura currently operates the acreage with a 100% interest.
Yamalik 1 appraisal well by Valeura (50% op, Statoil 50%) in F18-C / F19-D1 / F19-D4 block (Banarli), 60-day testing programme complete, 4 tests + 2 frac stages / tested intv starting at the bottom of the well. The 1st such test was completed in the Kesan fm, 151m fracced below 3996m, flowed 800 Mcfg/d + 60-70 bc/d (56 API) avg for 24 hrs. The 2nd test in the Kesan was completed after 2 slick-water fracs to access 34m of net gas pay below 3819m.Â  The 39-hour test resulted in also 800 Mcfg/d avg. A 4th test in the Kesan accessed 66ms of net gas pay below 3320m, 400 Mcfg/d + 30-50 bc/d. The aggregate with the earlier tests now reach 2,9 MMcf/d TD=4196m.