METHOD OF ELECTROCHEMICAL LIQUID PREPARATION, INJECTED IN THE OIL AND GAS-BEARING FORMATION, IN ORDER TO CHANGE THE SORPTION CAPACITY OF THE HEADER Russian patent published in 2017 - IPC C02F1/46 E21B43/22 

FIELD: oil and gas industry.

SUBSTANCE: for electrochemical preparation of the liquid, injected into the oil and gas bearing formation, it is used the electrode pairs with the areas ratio not equal to 1, located in different bodies from electrical insulating materials. Create potential difference on the electrode pairs due to polarization of the liquid pumped through them or by supplying to them the potential difference from the DC power supply, wherein the main part of the electric power is consumed not to cause the electrolysis processes, but to change polarization component of the liquid pumped through the electrode pairs. The electrical load is connected in any sequence to all or one of the electrode pairs, thus, keeping the potential, induced in the electrode pair, but not equal to 0 V.

EFFECT: sorption capacity change of the oil and gas header and the oil and gas production capacity due to the oil recovery factor change on the basis of minimization of any type of reagent interference in the relic component of the oil and gas bearing formation.

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