DOWNHOLE SPLIT FILTER Russian patent published in 2014 - IPC E21B43/08

Abstract RU 2504643 C1

FIELD: oil-and-gas industry.

SUBSTANCE: proposed filter comprises bearing carcass, filtration round brushes made up of cylindrical case with radially directed bundles of frieze, bundles diameter exceeding ID of operating tubing. Bearing carcass is composed of a perforated tube. Holes are made in said cylindrical case between frieze bundles. Tube space between bearing carcass and operating tubing is covered by splitter arranged above the filter.

EFFECT: higher quality of filtration.

1 dwg

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RU 2 504 643 C1

Authors

Danchenko Jurij Valentinovich

Dates

2014-01-20—Published

2012-08-15—Filed