SYSTEM MEANT FOR MAGNETIC PROCESSING OF FLUID IN WELL EQUIPPED WITH ELECTRIC CENTRIFUGAL PUMP WITH SUBMERSIBLE ELECTRIC MOTOR (VERSIONS) Russian patent published in 2009 - IPC E21B41/02 E21B37/00 C02F1/48 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to oil industry, and namely to systems intended for magnetic processing of formation fluid of various watercut in the well. System includes the device used for magnetic processing of flow-through fluid with a tube through which the produced fluid flow flows, and a magnetic block which is enclosed in a tight housing and installed on the tube. Device is located below the submersible electric motor and made as connected thereto by means of a connection as a perforated branch pipe. On the one end, the latter is connected to submersible electric motor, and on the other end - to the tube of the above device. According to the first version, the opposite tube end located at a distance from the branch pipe is equipped with a disk-shaped centralising interlocking device, and diameter of its cross section approximately corresponds to diameter of the well casing. According to the second version, the branch pipe is enclosed in a tight housing-screen with its simultaneous covering the submersible electric motor and partial covering the above casing.

EFFECT: improving efficiency of protection against deposits at any watercut of the produced fluid.

14 cl, 2 dwg