METHOD FOR ADAPTATION OF GEOLOGICAL AND HYDRODYNAMIC RESERVOIR MODEL Russian patent published in 2021 - IPC E21B47/06 E21B47/10 E21B49/00 

FIELD: historical data comparison methods.

SUBSTANCE: invention generally relates to the comparison of historical data and the prediction of hydrocarbon production from subterranean formations and, in particular, to those methods that use a geological-hydrodynamic model to help optimize the comparison of historical data in order to increase hydrocarbon production. The method includes obtaining, with a given time step, data on the history of wells in the simulated field; obtaining, as a result of the study of the field and wells located on it, the structural and petrophysical parameters of this field. Based on the obtained components and parameters, the values ​​of the dependent parameters for the field are calculated; construction of geological and hydrodynamic models, in which the values ​​of the calculated parameters of the field are changed; calculation of the objective function for each constructed geological and hydrodynamic model, taking into account the calculated and historical values ​​of the components, the time step, normalization to the measurement error, weight coefficients. A geological and hydrodynamic model is selected for field development, which corresponds to the target function with the lowest value. A system and method for adapting the geological and hydrodynamic model of the reservoir, field are also proposed.

EFFECT: improvement of comparison of historical data and the prediction of hydrocarbon production from subterranean formations.

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