DEVICE FOR TEMPORARY CONSERVATION Russian patent published in 2021 - IPC E21B33/35 

FIELD: mining industry.

SUBSTANCE: device for temporary conservation has been declared. The device includes a cylindrical body, the device is divided into two zones. The device contains a mechanical seal that prevents the flow of liquid from one zone to another. An anode protection is installed on the outer surface of the body. The device contains a handle mounted on the dogs on both sides of the specified body, which automatically fix the device body on the connecting profile of the underwater head system by moving the guide screws installed in the specified dogs. The specified handle is made with the possibility of locking in the raised and lowered positions. A hydraulic interface for supplying a chemical reagent is installed on the body, made with the possibility of connecting to a remote-controlled underwater vehicle and including a receiving device mounted on the body. The fittings are mounted on the body and on the receiving device and connected by tubes. The check valve is located in the center of the device and prevents the inhibitor from being withdrawn back into the receiving device through a nozzle with a tip mounted on it. The receiving device contains a plug to protect the receiving device from the environment.

EFFECT: providing the possibility of remote installation using a remote-controlled underwater vehicle in order to protect the connecting profile of the underwater column head system from damage, ingress of foreign objects, providing the possibility of supplying an inhibitor or drilling fluid into the wellbore for its conservation and prevention of environmental pollution with technical fluids.

1 cl, 3 dwg