WELL TREATMENT METHOD Russian patent published in 2023 - IPC E21B43/27 E21B43/25 E21B43/22 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil industry and can be used in the technological processing of wells. According to the method, a production well is stopped. The well is disconnected from the manifold line. The exposed carbonate reservoirs are saturated with process fluid along the well annulus until the well annulus is completely filled with the process fluid. The hydrochloric acid treatment of the bottomhole zone along the annulus of the well is carried out by pumping the hydrochloric acid composition into the annulus at the rate of 1 m³ of the hydrochloric acid composition TATOL/TATOL-SKS grade HCI-15/2500 per 1 m of the perforated strata. The hydrochloric-acid composition is forced into the productive formations with a process fluid with a process soaking of the well for 2 days. The well is connected to the manifold line and the well is put into operation.

EFFECT: simplification of the method without reducing the efficiency of well treatment with a simultaneous expansion of the arsenal of technical means that can be used for technological well treatment.

3 cl, 3 dwg