UD2 from January18 Jul 2018 15:40
RNS Number : 5244C
Frontera Resources Corporation
22 January 2018
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22 January 2018
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Frontera Resources Corporation
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("the Company")
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Update on Ud-2 well
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Frontera Resources Corporation (AIM: FRR), the European focused oil and gas exploration and production company, is pleased to provide an update regarding interim results on testing of the Ud-2 well, situated inside the 950km2Â Mtsare Khevi Gas Complex area, located in onshore Block 12, Georgia.
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Sustained deliverability of natural gas from the Gareji formation has been confirmed during Stage 2 of the current stimulation and testing program. The flowing interval, for Stage 2 testing, which is situated between 2519m - 2554m has indicated the presence of commercial gas within the Miocene-aged Gareji reservoir.
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State Oil and Gas Service Company has performed analysis of the flowed natural gas. Chemical composition is shown below:
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Methane - 94.58%
Ethane - 2.50%
Propane - 1.90%
Nitrogen - 0.43%
Others - 0.59%
Lower Calorific value - 9230 kcal/m3Â (State standard: not less than 7600 kcal/m3)
Higher Calorific value - 9910 kcal/m3
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The natural gas quality satisfies all requirements of the applicable GOST standard and corresponds to the applicable regulations of the State Standard 5542-87, which makes it acceptable for distribution through Georgia's natural gas grid.
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As previously announced on 28 November 2017, residual formation debris ('skin damage') from historical drilling operations was encountered together with natural gas flow during Stage 1 flowback operations while testing Miocene aged Gareji reservoir interval situated between 2600m - 2620m.Â
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Debris-free natural gas flow has now been successfully established following the modifications to the perforation, stimulation and flowback design for Stage 2 operations, while testing Miocene aged Gareji reservoir interval situated between 2519m - 2554m. For reference, Stage 1 was completed with 15 metric tons of proppant whereas Stage 2 included a 20 metric tons of proppant stimulation.
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Post Stage 2 stimulation analysis has determined that the contributing intervals to current natural gas production are less than 15% of the perforated and stimulated wellbore section situated between 2519m - 2554m. When combined with reservoir and production analysis, it has been concluded that a larger and more advanced mechanical stimulation will greatly enhance natural gas production rates from the targeted interval.Â
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The next phase of testing operations will now focus on establishing larger commercial gas production volumes from the Stage 2 testing interval.
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While continuing testing of the second interval of the Miocene aged Gareji reservoir, situated between 2519m - 2554m, additional pressure pumping equipment is being mobilized to conduct a mechanical stimulation with 70 metric tons of proppant and improve well performance. T