Hydrocarbon recovery employing an injection well and a production well having multiple tubing strings with active feedback control

In a system that produces fluids from a subterranean hydrocarbon reservoir traversed by an injection well and a production well, wherein the injection well includes an injector segment that is completed with at least one slotted liner and the production well includes a producer segment that is completed with at least one slotted liner, wherein the injector segment of the injection well is positioned in the hydrocarbon reservoir above and generally parallel to the producer segment of the production well, wherein the injector segment of the injection well is logically partitioned into a plurality of sections and the producer segment of the production well is logically partitioned into a plurality of sections that correspond by relative location to the sections of the injector segment to define a plurality of injector-producer section pairs, wherein a plurality of injection tubing strings are configured to supply stimulating fluid to associated sections of the injector segment where the stimulating fluid flows into the at least one slotted liner of the injector segment and exits through the at least one slotted liner into the hydrocarbon reservoir in the vicinity of the injector segment of the injection well, and wherein a plurality of production tubing strings are configured to carry fluids produced from associated sections of the producer segment of the production well, a production control method comprising:

• employing, a plurality of surface-located control devices that are configured to control head pressure of stimulating fluid flowing through the respective injection tubing strings in order to regulate the flow of stimulating fluid flowing through the injection tubing strings;
• and
• employing a plurality of controllers for the injector-producer section pairs, wherein each controller is configured to control at least one process variable for one of the injector-producer section pairs over time, wherein each given controller calculates an error value associated with the at least one process variable of the corresponding injector-producer section pair over time, wherein the error value is used in a control function processed by the given controller, wherein the control function is configured to minimize the error value over time by adjusting a control variable over time, and wherein the adjusted control variable is used to control the surface-located control device for the injection tubing string that supplies stimulating fluid to the injector section of the associated injector-producer section pair.