SUCKER-ROD CENTRALIZER Russian patent published in 2001 - IPC

Abstract RU 2176717 C1

FIELD: well equipment of oil-producing industry; applicable in oil well pumping units in directional wells in capacity of safety devices. SUBSTANCE: sucker-rod centralizer is sectional. Each section has one roller. Sections are interconnected by means of hinges and centralizer is connected with sucker-rods through sucker-rod heads hinged with centralizer sections. EFFECT: increased service life of pumping equipment, reduced failures of sucker-rod strings. 2 dwg

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RU 2 176 717 C1

Authors

Pchelintsev Ju.V.

Kljuev S.I.

Dates

2001-12-10—Published

2000-06-13—Filed