Synonym: Pressure Build-Up (PBU) = Build-Up Survey (BUS)
Pressure transient survey in producer during the pressure rise period caused by shutting well down or reducing its production rate |
(see Fig. 1):
Fig 1. Build-up Survey starting after well is closed at 3,600 hrs and going through pressure recovering for 7 days (blue dots). The grey dash line shows bottom hole pressure history before 3,600 hrs in case it would have been recorded. |
Interpretation of PBU is based on:
In some cases one can uses Horner model with simplified version of PBU interpretation procedure.
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing / Pressure Transient Analysis (PTA)
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