Drainage volume of a given well which is formed dynamically depending on the nearby well production and injection.
The more wells are producing or injecting in the same reservoir the smaller the dynamic drainage volume around each well is.
See Potential drainage volume to assess maximum drainage volume of a well in case it would have been producing or injecting alone.
See also
Physics / Fluid Dynamics / Percolation
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Field Study & Modelling / Drainage (fluid flow)
[ Drainage area (Ae) ] [ Drainage radius (re) ]