If the case is built around analysing the interference between one well with BHP readings and off-set wells without BHP records the RDCV @model is used.
If the case is built around analysing the interference between one well with BHP readings and off-set wells which also have BHP records the XDCV @model is used.
See also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Production Analysis (PA) / Pressure Deconvolution / Multiwell deconvolution (MDCV)
[ RDCV @model ][ XDCV @model ]