Expanded Thrace basin well testing mulled

Valeura Energy Inc., Calgary, and Equinor might expand testing of the Inanli-1 appraisal well in their basin-centered gas accumulation play of northwestern Turkey based on results from the first tested zone.

Valeura Energy Inc., Calgary, and Equinor might expand testing of the Inanli-1 appraisal well in their basin-centered gas accumulation play of northwestern Turkey based on results from the first tested zone (OGJ Online, June 25, 2019).

Inanli-1 is the first of two wells drilled to appraise the 2017 Yamalik discovery (OGJ Online, Oct. 9, 2018). The other appraisal well is Devepinar-1. All three Thrace basin wells encountered more than 1,300 m of overpressured tight gas, Valeura reported recently.

The first Inanli-1 reservoir stimulation was relatively small, with one third of the originally planned amount of proppant injected into the zone at 4,263-4,284 m.

Petrophysical data indicate the zone is moderately fractured with 14.2 m of net sand above a 3% porosity cutoff with average porosity of 5%.

On artificial lift through production tubing installed after reservoir stimulation, the well flowed at an average rate of 643 Mcfd for the first 8 days, excluding artificial-lift gas.

Water production during flowback declined steadily to 44 b/d on the eighth day of production.

The measured condensate-gas ratio is 5 bbl/MMcf.

Valeura, the operator, and 50-50 partner Equinor originally planned to stimulate and test four zones in Inanli-1. Valeura said they’re considering increasing the number of stimulations and tests.

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