Fracturing control

A system comprising:

• one or more processors;
• and
• at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the system to:
• receive diagnostics data of a hydraulic fracturing completion of a wellbore;
• access a fracture formation model that models formation characteristics of fractures formed through the wellbore into a formation surrounding the wellbore during the hydraulic fracturing completion with respect to surface variables of the hydraulic fracturing completion;
• select one or more subsurface objective functions from a plurality of subsurface objective functions for changing one or more of the formation characteristics of the fractures;
• and
• apply the fracture formation model based on the diagnostics data to determine values of the surface variables for controlling the formation characteristics of the fractures to converge on the one or more subsurface objective functions.

A non-transitory computer-readable storage medium comprising:

• instructions stored on the non-transitory computer-readable storage medium, the instructions, when executed by one or more processors, cause the one or more processors to:
• receive diagnostics data of a hydraulic fracturing completion of a wellbore;
• access a fracture formation model that models formation characteristics of fractures formed through the wellbore into a formation surrounding the wellbore during the hydraulic fracturing completion with respect to surface variables of the hydraulic fracturing completion;
• select one or more subsurface objective functions from a plurality of subsurface objective functions for changing one or more of the formation characteristics of the fractures;
• and
• apply the fracture formation model based on the diagnostics data to determine values of the surface variables for controlling the formation characteristics of the fractures to converge on the one or more subsurface objective functions.