E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/00 (2006.01) E21B 17/10 (2006.01)
Patent
CA 2081941
ABSTRACT OF THE DISCLOSURE A sucker rod string for a well tubing having a known curvature which is provided with centralizers which are adapted to move longitudinally through the curved portion of the tubing with minimum abrasion and stress imparted thereto, a sucker rod provided with such centralizers, and a method for installing the centralizers on a sucker rod.
Blake Cassels & Graydon Llp
Guideco Corporation
LandOfFree
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