Perforation Inflow Diagnostic Tests

Perforation Inflow Diagnostic (PID) Tests are an excellent, and cost effective, method for obtaining a quality estimation of initial reservoir pressure conditions. As the name implies, these tests are conducted during or immediately after perforating – so reservoir pressure transients are limited. Subsequent completion, stimulation, clean-up, and testing operations often seriously affect our ability to acquire quality pressure build-up data for analysis. Using subsurface pressure recorders will also satisfy ERCB Initial Pressure Gas (IP...

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Diagnostic Fracture Injection Testing (DFIT)

Characterizing Reservoir Properties using Diagnostic Fracture Injection Testing (DFIT) was presented at a recent Society of Petroleum Engineers (SPE) luncheon. A great talk – and a great reservoir diagnostic test – as our example Level 2 eREPORT illustrates: DFIT2 Mini-frac’ Fall-off. But…here in Alberta…as per ERCB Bulletin 2010-38 surface (or acoustic well sounder) data are no longer acceptable for Initial Pressure Gas or Initial Pressure Oil requirements. For compliance with Initial Pressure requirements the...

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