Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.


A cross-well type of Unit-rate Transient Response (UTR):  Sandface pressure response drop in well "m" to unit-rate (Sandface pressure response 

LaTeX Math Inline
bodyq_k=1
) production from the well "k":

LaTeX Math Block
anchor1
alignmentleft
p_{u,mk}(t) = p_{{\rm wf}, m}(0) - p_{{\rm wf}, mk}(t)|_{q_m =1} > 0, \quad p_{u,mk}(0) = 0


It's a virtual analogue of a unit-rate step-response pressure interference test to the shut-in well "k" from the constant unit-rate production  in well "m" to unit-rate (

LaTeX Math Inline
bodyq_km=1
) production from  from the well "k"m"


Image Added

Fig. 1. A sample of typical CTR (pressure drop P in blue and log-derivative P' in red) presented on PTA type-library log-log plot


See Also

...

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing / Unit-rate transient response (UTR)

Drawdown Transient Response (DTR) ]