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The Capacitance-Resistance Model (CRM) is a class of mathematical models relating the production rate history to the offset injection rate history with ability to account for the producers bottom-hole pressure variation.
In case the bottom-hole pressure data is available via Permanent Downhole Gauge (PDG) records it can be considered as the PDG interpretation facility in terms of injection → production connectivity.In case he bottom-hole pressure data is not available the bottom-hole pressure available it is considered constant over time.
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