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It does not require new data acquisition at well site and makes use of historical dynamic data records, usually few months or longer.

Motivation

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Production rate in producing well depends on its productivity index 

q^{\uparrow}(t)=J \cdot (p_e(t) - p_{wf})

and as such depends on how formation pressure is maintained 

It keeps declining due to to the offtakes:

p_e(t) = p_e[q^{\uparrow}(t)]

and maintained by either aquifer or Fluid Injection and in the latter case depends on injection rates:

p_e(t) = p_e[q^{\downarrow}(t)]

The combination of 

The ultimate purpose of MRT is to extract maximum information from correlation between the long-term (few months or longer) flowrate history and BHP history (recorded by PDG).

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