METHOD OF PACKER INSTALLATION INSIDE CASING STRING OF WELL Russian patent published in 2020 - IPC E21B33/12 E21B37/02 E21B21/00 

FIELD: machine building.

SUBSTANCE: invention relates to a method for installing a packer inside a casing string. Method for installation of packer inside casing string includes lowering into casing string of well assembled at the mouth of layout, consisting of packer, mechanical scraper, template, transportation tool, with templating, mechanical cleaning of packer inner walls internal casing scraper with packer margin sufficient for packer installation, arrangement of packer and its installation by means of transportation tool in setting interval. Assembly from below is additionally equipped with destructive tool. Template and packer with transportation tool are arranged in series above scraper. Total length of template is made not less than total length of transportation tool and packer. When the assembly stops, its contractions are drilled out with a destructive tool by means of rotation and unloading of the assembly. In case of not passing the pattern in the interval of packer setting and/or below it to the packer location in the landing interval additional cleaning is performed by the scraper of intervals above and/or below the interval of planting till further placement of the packer in the setting interval.

EFFECT: technical result is possibility of packer installation with minimum number of operations in complex structured wells.

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