Centralizer, protector and stabilizer for use in wellbore...

Details Centralizer, protector and stabilizer for use in wellbore... Centralizer, protector and stabilizer for use in wellbore...

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 17/22 (2006.01)

Patent

CA 2067808

2067808 9105936 PCTABS00005 Apparatus for use with a tubular member, which apparatus comprises: a generally cylindrical hollow body (11, 41, 61, 81, 110, 141, 151) having an inner surface of substantially uniform diameter, an outer surface, a first end and a second end, and disposable on a tubular member, a plurality of ribs (16, 46, 66, 86, 116, 136, 156, 173, 174) extending from and spaced apart on said body, characterized in that the distance between at least one adjacent pair of ribs and/or the thickness of the generally cylindrical hollow body is not uniform throughout the length of the apparatus.

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