Computer-implemented systems and methods for forecasting performance of polymer flooding of an oil reservoir system
AssigneeChevron U.S.A. Inc.
InventorsKhyati Rai, Arnaldo L. Espinel, Ganesh C. Thakur
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Abstract
Systems and methods are provided for forecasting performance of polymer flooding of an oil reservoir system. For example, property data of the oil reservoir system and polymer flooding scenario data are received. Numerical simulations are performed to generate values of an effective mobility ratio and response time for the polymer and water flooding. A correlation for the polymer flooding effective mobility ratio is determined and used in a predictive model to generate polymer and water flooding performance data, representative of oil recovery by the polymer and water flooding of the oil reservoir system.
Claims23
A computer-implemented method for forecasting performance of polymer flooding of an oil reservoir system, said method comprising:
- receiving, through one or more data processors, data related to properties of the oil reservoir system and data related to a polymer flooding scenario;
- performing, through the one or more data processors, numerical simulations to generate values of an effective mobility ratio for the polymer flooding;
- determining through the one or more data processors, a correlation for the polymer flooding effective mobility ratio as a function of a mobility ratio of the polymer flooding, a mobile oil saturation of the oil reservoir system, and a vertical permeability distribution of the oil reservoir system;
- and
- using, through the one or more data processors, the determined correlation for the polymer flooding effective mobility ratio in a polymer flooding predictive model to generate polymer flooding performance data;
- wherein the generated polymer flooding performance data is representative of oil recovery by the polymer flooding of the oil reservoir system.
A computer-implemented system for forecasting performance of polymer flooding of an oil reservoir system, said system comprising:
- one or more data processors;
- a computer-readable memory encoded with instructions for commanding the one or more data processors to perform steps comprising:
- receiving data related to properties of the oil reservoir system and data related to a polymer flooding scenario;
- performing numerical simulations to generate values of an effective mobility ratio for the polymer flooding;
- determining a correlation for the polymer flooding effective mobility ratio as a function of a mobility ratio of the polymer flooding, a mobile oil saturation of the oil reservoir system, and a vertical permeability distribution of the oil reservoir system;
- and
- using the determined correlation for the polymer flooding effective mobility ratio in a polymer flooding predictive model to generate polymer flooding performance data;
- wherein the generated polymer flooding performance data is representative of oil recovery by the polymer flooding of the oil reservoir system.
A non-transitory computer-readable storage medium encoded with instructions for commanding one or more data processors to perform a method for forecasting performance of polymer flooding of an oil reservoir system, said method comprising:
- receiving data related to properties of the oil reservoir system and data related to a polymer flooding scenario;
- performing numerical simulations to generate values of an effective mobility ratio for the polymer flooding;
- determining a correlation for the polymer flooding effective mobility ratio as a function of a mobility ratio of the polymer flooding, a mobile oil saturation of the oil reservoir system, and a vertical permeability distribution of the oil reservoir system;
- using the determined correlation for the polymer flooding effective mobility ratio in a polymer flooding predictive model to generate polymer flooding performance data;
- wherein the generated polymer flooding performance data is representative of oil recovery by the polymer flooding of the oil reservoir system.
Dependencies are inferred from the claim text.