RU159650U1 - SUBMERSIBLE BARBED ELECTRIC PUMP - Google Patents

Abstract

Submersible rodless electric pump containing a motor with hydraulic protections, a module section of the pump with folding channels, a differential attachment-disperser with receiving channels, a shank with a receiving channel, a centralizer screen, characterized in that it additionally contains an upper and a lower device with a check valve for magnetic processing of oil-gas mixture, with placed permanent magnet magnetic systems on the outer surface of ferromagnetic housings, the lower of which is equipped with discharge channels.

Description

The utility model relates to the oil industry, in particular to submersible rodless electric pumps with devices for magnetic processing of oil-gas mixtures to prevent asphalt-tar and paraffin deposits in underground oilfield equipment, to reduce the corrosive activity of the produced fluid.

A device for magnetic fluid processing as a non-reagent means of protecting oilfield equipment from asphalt-resin-paraffin deposits is known. A distinctive feature of the design of the device is the placement of a magnetic system of permanent magnets on the outer surface of the ferromagnetic casing. Due to this, an axial magnetic field is formed inside the hollow body - in the working channel (see PM No. 12409 IPC ⁶ C02F 1/48). The disadvantage of this device is the insufficient efficiency of magnetic processing of the entire volume of the incoming fluid due to low operational reliability.

A device for magnetic fluid treatment containing a ferromagnetic pipe, on the outer surface of which are placed magnets, is new that the lower part of the ferromagnetic pipe is equipped with a check valve and a lower centralizer with sealing cuffs and a packer, the magnets are interconnected by pipe connecting pipes on the thread, the upper part of the ferromagnetic pipe is equipped with an upper centralizer with a sealing collar, a coupling with holes and a fishing head with a left-hand thread. (Patent for PM No. 77913 from 05/26/2008 g IPC F02M 27/04)

The disadvantage of this technical solution is that the device descends with the packer on the pipes into the well, regardless of the ESP.

This increases additional operating costs for separate descent and lifting of the magnetic device. The possibility of increasing the deposition of asphalt-resinous paraffin formations, salts, corrosion of the production string in the well zone with a reduced oil pressure in the well is not excluded.

Known submersible rodless electric pump containing a motor with hydraulic protections, a module section of the pump with flow channels, a differential attachment-disperser with receiving channels, a shank with a receiving channel, a centralizer screen. (Patent ПМ No. 120157 dated 03/27/2012, IPC F04D 13 / 10 prototype) However, the proposed design does not solve the problem of performing magnetic processing of the oil and gas mixture in order to prevent asphalt-resin-paraffin deposits in underground oilfield equipment, to reduce the corrosiveness of production my fluid.

The objective of which the present utility model is aimed is to create a reliable and efficient submersible rodless electric pump with devices for magnetic processing of oil and gas mixtures in order to prevent asphalt-resin-paraffin deposits in underground oilfield equipment to reduce the corrosive activity of the produced fluid.

This task is achieved by the fact that in the proposed submersible rodless electric pump containing an engine with hydraulic protections, a module-section of the pump with folding channels, a differential attachment-disperser with receiving channels, a shank with a receiving channel, a centralizer screen, in contrast to the prototype, it additionally contains upper and lower device with a check valve for magnetic processing of oil-gas mixture, with placed permanent magnet magnetic systems on the outer surface of the ferromagnetic housing , The bottom of which is provided with a switchblade channels.

The drawing shows a submersible rodless electric pump. A submersible rodless electric pump contains a motor 1 with hydroprotection 2,3, a module section of the pump 4 with flow channels 5, a differential attachment disperser 6 with receiving channels 7, a shank 8 with a receiving channel 9, a centralizer screen 10, upper 11, lower 12 device with a check valve 13, magnetic systems 14, 15 on the outer surface of the ferromagnetic housings 16 and 17, which is equipped with discharge channels 18

During operation of a submersible rodless electric pump, the borehole fluid from the formation 19 enters through the intake channel 9 into the liner 8, and from it into the ferromagnetic body 17 of the lower device 12 with a check valve 13, for magnetic processing of the oil-gas mixture with a magnetic system 15 made of permanent magnets on the external surface ferromagnetic casing 17, de in the low pressure zone 20 it is subjected to magnetic treatment. From the bottom device 12, the magnetized borehole fluid through the passage channel 21 enters the module section of the pump 4, which pumps it through the flow channels 5 into the pressure zone in the borehole 22 created by the centralizer screen 10. From this zone, the VNGS enters through the reception channels 7 into the dispersant attachment 6, which pumps the VNGS into the upper device 11 for magnetic processing of the oil-gas mixture with the placed magnetic system 14 of permanent magnets on the outer surface of the ferromagnetic body 16. Here, the downhole fluid l after complex processing in the zone of high pressure 22 is again subjected to magnetic treatment. The dispersant prefix 6 also receives an additional volume of well fluid from the reservoir 19 through the flow channels 18 to the high pressure zone 22. In this case, a complex additional processing of the magnetized oil in the high pressure zone occurs. When VNGS passes through the ferromagnetic bodies of the upper 16 and lower device 17, it is subjected to axial magnetic fields directed along and towards the flow, as a result of which it is activated, preventing the deposition of asphalt-tar-paraffin substances on the surface of oilfield equipment.

Thus, a reliable and effective device for magnetic fluid treatment is created, which allows to increase the reliability of submersible electric pumps in difficult operating conditions by preventing deposits of paraffin, salts, and mechanical impurities.

Claims (1)

Submersible rodless electric pump containing a motor with hydraulic protections, a module section of the pump with folding channels, a differential attachment-disperser with receiving channels, a shank with a receiving channel, a centralizer screen, characterized in that it additionally contains an upper and a lower device with a check valve for magnetic treatment of oil-gas mixture, with placed permanent magnet magnetic systems on the outer surface of ferromagnetic housings, the lower of which is equipped with discharge channels.

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