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1. (WO2016057977) END FITTING FOR SUCKER RODS AND SUCKER ROD

Pub. No.:    WO/2016/057977    International Application No.:    PCT/US2015/055026
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Sat Oct 10 01:59:59 CEST 2015
IPC: E21B 17/00
E21B 17/06
E21B 17/04
E21B 47/00
E21B 47/06
Applicants: JOHN CRANE PRODUCTION SOLUTIONS INC.
Inventors: GERNENTZ, Ryan Scott
MARTIN, Dustin Wayne
HRICISAK, Karol
Title: END FITTING FOR SUCKER RODS AND SUCKER ROD
Abstract:
An end fitting attachable to an end of a sucker rod includes a generally cylindrical body having a receptacle portion, a coupling portion, and a longitudinal axis. The receptacle portion has a receptacle extending inwardly from an open end surface of the body along the longitudinal axis for receiving the end of the sucker rod therein, with the receptacle having at least one annular cavity. The coupling portion extends from a coupling end surface of the body opposite the open end surface and is configured to connect the end fitting to another component. The coupling portion may further include an area of predictive failure. A diagnostic sensor may be included in a cavity of the end fitting.