1. A method for real-time oil and gas field production optimization using a proxy simulator, comprising: establishing a base model of a physical system in at least one simulator, wherein the physical system comprises at least an oil well and a processing system and wherein the at least one simulator simulates a flow of fluids in the oil well; defining boundary limits including an extreme level for each of a plurality of control parameters of the physical system, wherein the plurality of control parameters comprise a set of design parameters; fitting data comprising a series of inputs, the inputs comprising values associated with the set of design parameters, to outputs of the at least one simulator utilizing a proxy model, wherein the proxy model is a proxy for the at least one simulator; utilizing an optimizer with the proxy model to automatically determine design parameter value ranges; automatically generating, on a computer, utilizing the determined design parameter value ranges from the proxy model for real-time optimization and control with respect to selected parameters over a future period, a simultaneous display of a plurality of graphs, each of the plurality of graphs showing a plurality of predicted valve settings for optimizing production in the oil well, wherein each graph in the plurality of graphs represents a well location of the oil well and an associated valve location for regulating the fluid flow into the oil well, wherein a first axis of each graph in the plurality of graphs shows a range of predicted valve settings for the associated valve location for the oil well, and wherein a second axis of each graph in the plurality of graphs shows a range representing increments of time over the future period; and utilizing the simultaneously displayed plurality of graphs for real-time oil and gas field production optimization.