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Sandface pressure response drop in well "m" to the constant unit-rate production
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p_{u,mm}(t) = p_{{\rm wf}, mm}(0) -p_{{\rm wf}, mm}(t)|_{q_m = 1} >0, \quad p_{u,mk}(0) = 0
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Fig. 1. A sample of typical DTR (pressure drop P in blue and log-derivative P' in red) presented on PTA type-library log-log plot |
See Also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing / Unit-rate transient response (UTR)
[ Well & Reservoir Surveillance ] [ Cross-well Transient Response (CTR) ]
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