Patent ID: 8463585
Filing Date: 2013-06-11
Classification: E21B

Abstract:
1. A method of estimating fluid flow contribution from each production zone of a multi-zone production well for a model that is used for designing a multi-zone production well, the method comprising: (a) defining a wellhead pressure; (b) providing a model of fluid behavior of each production zone in a multi-zone production well: (c) determining, using the model, an integrated inflow performance relation (IPR (d) determining, using the model, an integrated inflow performance relation (IPRc) at a commingle point using IPR (e) defining an initial fluid contribution from the first production zone and an initial fluid contribution from the second production zone into the commingle point; (f) determining, by a computer using the model, a first total outflow performance relation between pressure and flow rate (TPR (g) determining a fluid contribution from each production zone by determining a first fluid contribution from the first production zone (Q wherein at least processes (c), (d) and (g) are iterated until a parameter of interest meets a selected criterion.