Unconventional Testing Alternatives

Mini-Frac’ or DFIT (Diagnostic Fracture Injection Test) is another #welltest alternative that might be worth considering to satisfy #AER Initial oil and gas (#LNG) well test requirements. In horizontal wellbores mini-frac’s can be successful if conducted through the toe port. Another strategy is to complete the multi-stage frac’, clean up the well some, install gauges below the pump and rods, and monitor the pressure for a few weeks, before pump start-up. Schedule a pump workover within 90 days to pull gauges. Analyze the build-up or...

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Mini-Frac’ DFIT Testing

Doubles For Initial Test… Mini-frac’ or Diagnostic Fracture Injection Tests (#DFIT) help double your #welltest efficiency if pressure gauges are downhole. G-Function analysis estimates closure stress, pore pressure, and leak-off type. After-Closure analysis may provide an estimate of flow capacity (kh) for use in fracture stimulation design. What isn’t specifically clear in #AER D40 is that pressure transient analysis (#PTA) is acceptable for estimating Initial Pressure Oil or Gas (#LNG) conditions (p*). Conceptionally, DFIT is...

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