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
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Production Analysis (PA) / Pressure Deconvolution / Multiwell deconvolution (MDCV)
[ RDCV @model ][ XDCV @model ]