PUMP ROD Russian patent published in 2010 - IPC E21B17/00

Abstract RU 2403368 C2

FIELD: oil and gas industry.

SUBSTANCE: pump rod includes hollow body with outer diametre equal to outer diametre of coupling and welded threaded ends. Inner diametre of rod is determined from condition of equality of masses submerged into working fluid of the proposed rod and solid rod with standard parametres according to the equation:

EFFECT: improving reliability and life time of pump rod.

1 dwg, 2 tbl

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RU 2 403 368 C2

Authors

Lachinjan Leonid Artem'Evich

Dates

2010-11-10—Published

2009-01-28—Filed