Method and system for avoiding damage to behind-casing...

Details Method and system for avoiding damage to behind-casing... Method and system for avoiding damage to behind-casing...

E - Fixed Constructions

21

B

E21B 29/06 (2006.01) E21B 19/12 (2006.01) E21B 23/02 (2006.01) E21B 23/03 (2006.01) E21B 41/00 (2006.01) E21B 47/09 (2006.01)

Patent

CA 2419687

A structure is positioned on the outer surface of a casing or liner to enable cutting the casing in substantially any azimuth over a given length of casing without damaging the structure. After placing the casing in a wellbore, the position of the structure on the casing may be determined with reference to an orienting slot in an indexing coupling. Thereafter, a non-colliding region on the casing may be identified for cutting the casing.

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