MULTIPURPOSE WELL SCREEN Russian patent published in 2009 - IPC E21B43/08 

Abstract RU 2364709 C2

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to mining industry, particularly to oil-and-gas production and can be used while reclamation of oil and gas wells. Multipurpose well screen contains perforated pipe with nipple and socket parts, concentrically to which it is installed filter element. Filter element is implemented of rings, butts of which are contacted. At one or both butts of rings it is implemented knurling. Knurling is implemented crosswise or tangential.

EFFECT: increasing of flow capacity of filter at winning of oil or gas.

6 cl, 12 dwg

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RU 2 364 709 C2

Authors

Solov'Ev Ehduard Fedorovich

Varlamov Sergej Evgen'Evich

Dates

2009-08-20Published

2007-11-06Filed