TOOLS AND SYSTEM FOR COMPLETION OF WELLS AND METHOD OF OPERATING TOOLS FOR COMPLETION OF WELLS Russian patent published in 2023 - IPC E21B34/10 E21B34/14 E21B43/12 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to well completion and regulation of the flow of transported media. The well completion tool includes a tubular body having a valve chamber located inside its side wall. An internal opening extends into the valve chamber and forms a fluid path between the internal fluid path of the tubular body and the valve chamber. Located within the valve chamber is a time-delay valve configured to control the flow of fluid through the valve chamber. The time delay valve includes a main portion defining a chamber for receiving or storing a reagent fluid. In the main portion, adjacent to the chamber, there is a reactive material that reacts with the reactant fluid in response to contact with the reactant fluid from the valve chamber. The piston is located in the main part and is configured to move from an open state to a closed state in response to interaction of the reactive material with the reagent fluid to expand the reactive material in the volume for sliding of the piston to close the fluid path in the valve chamber after a predetermined time. The valve gate is located within the tubular body and is made with the possibility to open an internal opening between the valve chamber and the internal fluid path of the tubular body to activate the time-delay valve. A system for completing a well and a method for operating a tool for completing a well are claimed.

EFFECT: increasing the efficiency of well completion by ensuring the possibility of carrying out downhole operations in one trip of equipment.

20 cl, 19 dwg