E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/08 (2006.01)
Patent
CA 2421765
A well screen (10) comprising a wire (14) spirally wrapped around a perforated base pipe (12) and spacing the perforated base pipe from a woven wire mesh filtering medium (16).
Ce tube filtre de puits (10) comprend un fil m~tallique (14) enroul~ en spirale autour d'un tuyau de base perfor~ (12) et assurant l'espacement entre le tuyau de base perfor~ et le support filtrant m~tallique maill~ (16).
Bruxelle David
Gillespie George A.
Malbrel Christophe
Neal Michael William
Vu Phong
Marks & Clerk
Weatherford/lamb Inc.
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