METHOD OF AUTOMATIC DISTRIBUTION OF TOTAL GAS FLOW THROUGH PRESSURE WELLS IN WATER-GAS METHOD EFFECT ON FORMATION Russian patent published in 2017 - IPC E21B43/16 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, in particular, to methods to methods for automatic control of the system for maintaining formation pressure during water-gas effect on the formation, and can be used for automatic distribution of the total gas flow between the pressure wells. The method determines integral volume of gas to be pumped into the pressure wells on the basis of gas flow rate measurement at the inlet to the system for maintaining the formation pressure. The total volume of gas to be distributed is determined by the difference between the integral volume of injection and target gas flow rates of those wells, for which the accounting flag is set to zero. After that the obtained total volume of gas is distributed between those pressure wells, for which the accounting flag in the distribution equals one, proportionally to their weight coefficients, which are obtained as a result of mathematical modelling and industrial experiments, or on the basis of regulatory documentation. In this case, the target gas flow rates for each well are automatically adjusted.

EFFECT: increase method efficiency due to provision of stable operating mode of the wells in the conditions of inconstancy of incoming gas.

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