Pressure transient survey in producer during the pressure fall period caused by opening well for production or increasing its production rate |
(see Fig. 1).
Fig 1. Drawdown pressure decline (blue dots) for 2,300 hrs after opening the well for production at 100 m3/d. |
Interpretation of DD is based on:
Fig. 1. PTA Diagnostic Plot for vertical well in single-layer homogeneous reservoir with impermeable circle boundary (PSS). Gauge pressure is in blue and log-derivative is in red. | Fig. 2. Pressure diffusion model fitting to pressure gauge data. Gauge pressure is in blue and log-derivative is in red. |
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing / Pressure Transient Analysis (PTA)
[ Pressure Transient Analysis (PTA) ][ Pressure Build-Up (PBU) = Build-Up Survey (BUS) ][ Injection survey ]