Downhole sealing for production tubing

Details Downhole sealing for production tubing Downhole sealing for production tubing

E - Fixed Constructions

21

B

E21B 33/10 (2006.01) E21B 29/00 (2006.01)

Patent

CA 2564290

A method of providing a downhole seal, such as a packer (12), in a drilled bore between inner tubing (11) and outer tubing (16) comprises: providing an intermediate tubing section (18) defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension (40a, 40b). The extension creates a sealing contact with the outer tubing (16).

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