E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/042 (2006.01) E21B 17/00 (2006.01) E21B 43/12 (2006.01)
Patent
CA 2232925
An improved connection and method for making the connection for connecting sucker rods in a sucker rod string used to drive downhole pumps for producing fluid from an underground formation, the connection having an outside diameter no greater than one and one half times the outside diameter of the sucker rod and which uses the contact between the mating threads of the connection for transferring loads between connected sucker rods coupling.
L'invention porte sur un raccord amélioré et concerne une méthode de raccordement des tiges d'un train de tiges de pompage servant à entraîner des pompes de fond pour extraire du fluide provenant d'une formation souterraine. Le raccord présente un diamètre externe ne mesurant pas plus d'une fois et demie le diamètre externe de la tige de pompage et utilisant le contact entre les filets d'accouplement du raccord pour transférer les charges entre les couplages des tiges de pompage reliées.
C-Fer Technologies (1999) Inc.
Na
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