公开(公告)号：US20040256098A1

公开(公告)日：2004-12-23

申请号：US10894302

申请日：2004-07-19

Applicant: e2Tech Limited

Inventor： Christopher Ducasse ,  Peter Oosterling

IPC: E21B023/04 ,  E21B019/16

CPC classification number: E21B43/106 ,  E21B43/103 ,  E21B43/108

Abstract: The present invention provides apparatus and a method of anchoring an expandable conduit. A formation is provided on an outer surface of the conduit, the formation comprising a number of bands of a friction and/or sealing material. When the expandable conduit is radially expanded, the friction and/or sealing material engages a second conduit in which the expandable conduit is located. The engagement of the friction and/or sealing material provides an anchor for the expandable conduit.