METHOD OF WELL OPERATION Russian patent published in 2008 - IPC E21B43/00 

FIELD: mining.

SUBSTANCE: flow column with perforation below packer is installed with rest on bottom hole. The packer, mounted above perforation on the flow column, divides payout beds. At low speed of swab lifting a lower payout bed is swabbed. Then packer releasing is carried out. Zone under the packer is filled with hydrochloric acid solution, the packer is installed, hydrochloric acid solution is pushed into the lower payout bed and process conditioning is performed. Swabbing is carried out at a high peed of swab lifting till liquid in a well drops to a level of 600-800 m, then swabbing is performed at a low speed of swab lifting till inflow from the lower payout bed appears, then swabbing is carried out at a high speed of swab lifting. After that the packer is released. The flow column with perforation above the packer is arranged with rest on the bottom hole. The packer installed below perforation on the flow column divides the payout beds. Swabbing of the upper payout bed is carried out at a low speed of swab lifting. Zone above the packer is filled hydrochloric acid solution, then this solution is pushed into the upper payout bed; and process conditioning is performed. Swabbing is carried out at a high peed of swab lifting till liquid in a well drops to a level of 600-800 m, then swabbing is performed at a low speed of swab lifting till inflow from the upper payout bed appears, then swabbing is carried out at a high speed of swab lifting. Then the assembly is lifted from the well. The down hole pumping equipment is lowered and the well is operated in a cyclic mode "pump running-process conditioning", after that the well is operated under "pump running" mode.

EFFECT: increased productivity of well.

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