WELL FILTER TO PREVENT ASPHALT/TAR AND PARAFFIN/HYDRATE DEPOSITS Russian patent published in 2009 - IPC E21B43/08 

Abstract RU 2347892 C2

FIELD: oil and gas industry.

SUBSTANCE: invention is applicable to the oil producing industry and can be used in gas production and water desanding. The well filter designed to prevent asphalt/tar and paraffin/hydrate deposits is shaped as a pipe with a male threaded top section and a coupling installed thereon and with holes on part of the pipe side. A filtering element is installed concentrically with the pipe. The pipe section without holes is fitted with permanent magnets The filter has a male treaded bottom section. The permanent magnets are mounted in longitudinal grooves on the outer surface of the pipe and filled with compound or in grooves on the surface or inside of the cylindrical body installed inside the well filter.

EFFECT: increased well rate as a result of preventing asphalt/tar and paraffin/hydrate deposits in the filter and tubing.

4 dwg

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RU 2 347 892 C2

Authors

Varlamov Sergej Evgen'Evich

Bolotin Nikolaj Borisovich

Varlamov Dmitrij Sergeevich

Nefedova Elena Nikolaevna

Dates

2009-02-27Published

2007-01-09Filed