System and method for determining production from a plurality of wells

A system comprising:

• a plurality of sensors disposed in an oil field, wherein the plurality of sensors comprises a plurality of pump-off controller (POC) sensors disposed on a plurality of well-pumps and a plurality of commingled-flow measurement sensors disposed on a pool-line;
• a data acquisition unit configured to:
• receive field measurement data of a plurality of well-pumps disposed respectively in a plurality of wells from the plurality of POC sensors, wherein the field measurement data are representative of speed data and run-time data of the plurality of well-pumps;
• and
• receive commingled-flow measurement data using the plurality of commingled-flow measurement sensors, wherein the commingled-flow measurement data are representative of a combined fluid flow data of the plurality of wells;
• an optimizer unit communicatively coupled to the data acquisition unit and configured to:
• generate a plurality of conservation constraints using a constraint generator, based on the commingled-flow measurement data and the field measurement data;
• and
• determine well-flow data corresponding to the plurality of wells based on the commingled-flow measurement data, the field measurement data, and the plurality of conservation constraints, wherein the well-flow data are representative of fluid flow data from each of the plurality of wells;
• and
• a controller communicatively coupled to the data acquisition unit and the optimizer unit and configured to control operation of at least one of the plurality of well-pumps based on the well-flow data to control fluid production from the plurality of wells.

A non-transitory computer readable medium having instructions to enable at least one processor module to:

• receive field measurement data of a plurality of well-pumps disposed respectively in a plurality of wells from a plurality of pump-off controller (POC) sensors, wherein the field measurement data are representative of strokes per minute data and duty cycle data of the plurality of well-pumps;
• receive commingled-flow measurement data using a plurality of commingled-flow measurement sensors, wherein the commingled-flow measurement data are representative of a combined fluid flow data of the plurality of wells;
• determine well-flow data of the plurality of wells based on the commingled-flow measurement data, the field measurement data, and a plurality of conservation constraints generated by a constraint generator, wherein the well-flow data are representative of fluid flow data from each of the plurality of wells;
• and
• control operation of at least one of the plurality of well-pumps based on the well-flow data to control fluid production from the plurality of wells.