E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/10 (2006.01)
Patent
CA 2225595
A centralizer (10) comprises a tubular body (12) provided with two spaced apart grooves (18). The ends of spring bows (20) are mounted on collars (24, 26) which are slidably mounted in respective ones of the grooves (18). In use, movement of the spring bow (20) against the tubular body (12) can be accommodated by movement of the collars (24, 26) along the grooves (18).
Un centreur (10) comprend un corps tubulaire (12) doté de deux rainures séparées (18). Des extrémités de balustres (20) sont montées sur des colliers (24, 26) fixés de façon à pouvoir coulisser sur leur rainure respective (18). Lors de l'utilisation, le déplacement du balustre (20) contre le corps tubulaire (12) est rendu possible par celui des colliers (24, 26) le long des rainures (18).
Hebert Brad Walter
Lirette Brent James
Martens James George
Vilyus Robert Porter
Mcfadden Fincham
Weatherford/lamb Inc.
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