External casing anchor

Details External casing anchor External casing anchor

E - Fixed Constructions

21

B

E21B 17/08 (2006.01)

Patent

CA 2328190

A plurality of steel rings are affixed, as by crimping using hydroforming means, to the outside of a joint of steel well casing. The rings are distributed in spaced relation along the joint. The resulting anchor joint is run into a well as part of the casing string and cemented in place.

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