DEVICE FOR WELL CLOGGING AND METHOD OF TEMPORARY WELL CLOGGING Russian patent published in 2020 - IPC E21B33/12 

FIELD: mining.

SUBSTANCE: group of inventions relates to a device for clogging a well, a method for temporary blocking of a well using a device for clogging a well. Device for well clogging comprises well plug; a setting tool arranged on the side of the rear end of the well plug, wherein the setting tool actuates and installs the downhole plug; and one or more obstacles, which clog the flow path in the well plug. Downhole plug includes a hollow mandrel having an opening at least at the rear end. Installation tool includes a mounting rod and a mounting sleeve. Mounting rod is directly or indirectly connected to mandrel front end side. Mounting sleeve is arranged so that to cover at least part of mounting rod and at least part of well plug. Mounting rod is inserted through the hole on the back end of the mandrel into the hollow part of the mandrel. Obstruction is placed inside space inside locating tool.

EFFECT: disclosed invention makes it possible to reliably establish an obstacle to the seat of the well plug in a short period of time to ensure reduction of costs and the process of well drilling.

14 cl, 6 dwg