Patent ID: 7894991
Filing Date: 2011-02-22
Classification: E21B

Abstract:
1. A method for optimizing production for a drilling operation in a field having a plurality of wells therein, the field having at least one well site with a drilling tool advanced into a subterranean formation with geological structures and reservoirs therein, the method comprising: identifying a production history and an injection history for the plurality of wells; determining a heterogeneity index value to each of the plurality of wells; responsive to determining the heterogeneity index value to each of the plurality of wells, determining a pattern personality for each of the plurality of wells; subdividing the production history and the injection history for the plurality of wells into a plurality of time intervals; determining at least two domains for each of the plurality of wells wherein each of the at least two domains for each of the plurality of wells are centered around each of the plurality wells, wherein a first domain of the at least two domains has a first orientation, and wherein a second domain of the at least two domains has a second orientation; determining an Oil Processing Ratio Strength Indicator for each of the at least two domains; in response to determining an Oil Processing Ratio Strength Indicator for each of the at least two domains, determining at least one meta pattern within the field; and in response to determining the pattern personality for each of the plurality of wells and to determining the at least one meta pattern, guiding an oilfield operation based on the pattern personality for each of the plurality of wells and the at least one meta pattern.