  The paper provides introduction into the mathematical aspects of Multiwell
Deconvolution (MDCV) and Capacitance Resistance Model (CRM) and connection
between them. Both methods are trying to train a model over the long-term
history of surface flowrates and bottomhole pressure readings and then predict
bottomhole and formation pressure in response to a given production/injection
flowrate scenario (called "rate control simulation") or alternatively may
predict flowrate and formation pressure in response to a given bottomhole
pressure scenario (called "pressure control simulation"). It has been shown
that CRM can be viewed as a partial case of MDCV with a specific type of a
drawdown and cross-well pressure transient responses which is not always met in
practice. The paper also explains limitations which are common for both methods
and specify additional limitations of CRM which MDCV can handle.
