D(t) Functions Functions
Instantaneous decline rate D(t) for each decline model.
9 functions
PO.DCA.Arps.D
Calculates instantaneous decline rate D(t) for Arps decline, {1/T}. D(t) = Di/(1+b×Di×t). Computed numerically.
PO.DCA.ModHyp.D
Calculates instantaneous decline rate D(t) for Modified Hyperbolic decline, {1/T}. Computed numerically.
PO.DCA.PLE.D
Calculates instantaneous decline rate D(t) for Power Law Exponential (PLE) model, {1/T}. D(t) = D∞ + n×Di0×t^(n-1). Computed numerically.
PO.DCA.SEDM.D
Calculates instantaneous decline rate D(t) for Stretched Exponential model, {1/T}. D(t) = (n/τ)×(t/τ)^(n-1). Computed numerically.
PO.DCA.EEDM.D
Calculates instantaneous decline rate D(t) for Extended Exponential Decline Model (EEDM), {1/T}. Computed analytically.
PO.DCA.Duong.D
Calculates instantaneous decline rate D(t) for Duong model, {1/T}. Computed numerically.
PO.DCA.LGM.D
Calculates instantaneous decline rate D(t) for Logistic Growth Model (LGM), {1/T}. Computed analytically.
PO.DCA.THM.D
Calculates instantaneous decline rate D(t) for Transient Hyperbolic Model, {1/T}. Computed analytically.
PO.DCA.AKB.D
Calculates instantaneous decline rate D(t) for Ansah-Knowles-Buba (2000) decline, {1/T}. Computed numerically.