Ansah-Knowles-Buba Functions
Ansah-Knowles-Buba (2000) dimensionless gas decline honouring pressure-dependent properties.
6 functions
PO.DCA.AKB.Rate
Calculates production rate using Ansah-Knowles-Buba (2000) semi-analytical decline model for bounded reservoirs. Units of volume {L3} and time {T} must be consistent.
PO.DCA.AKB.Prod
Calculates cumulative production using Ansah-Knowles-Buba (2000) semi-analytical decline model for bounded reservoirs. Units of volume {L3} and time {T} must be consistent.
PO.DCA.AKB.Time
Time to reach an economic rate limit for Ansah-Knowles-Buba (2000) decline, {T}. Returns the time when the production rate falls to the specified economic limit.
PO.DCA.AKB.EUR
Estimated Ultimate Recovery (EUR) to an economic rate limit for Ansah-Knowles-Buba (2000) decline, {L3}. Returns cumulative production up to the time the rate reaches the economic limit.
PO.DCA.AKB.Fit
Fit Ansah-Knowles-Buba (2000) decline to rate-time data and return parameters as a column array (Qi, Alpha, Beta).
PO.DCA.AKB.WFit
Weighted fit of Ansah-Knowles-Buba (2000) decline to rate-time data and return parameters as a column array (Qi, Alpha, Beta).