SYSTEM AND METHOD OF CEMENTING AND PREVENTING SAND INGRESS Russian patent published in 2024 - IPC E21B43/14 E21B23/02 E21B43/04 

FIELD: mining.

SUBSTANCE: group of inventions relates to a system and a method for cementing and preventing sand production. Method includes detachable connection of tool for maintenance in casing string. Method also includes lowering the tool for servicing by means of a casing string into the wellbore. Method also involves placing a well completion system connected to the casing at a well location for performing a gravel packing operation. Method also includes lowering the working string into the well to the tool for servicing after placing the well completion system in the well location. Method also involves connection of the working string to the service tool by means of a latch on the lower end of the working string. Also, the tool is used for servicing after connection with the working string to perform well operations. Downhole operations include injection of gravel pulp through a working string, a latch, and a service tool. Besides, well operations include cement injection through working string, latch, and service tool.

EFFECT: provision of simultaneous cementing and arrangement of system to prevent sand ingress.

16 cl, 10 dwg