The invention is a system and method used to seal between an open wellbore and a tubing by bringing the wellbore wall inwardly so as to enable sections of earth from the wellbore wall to create the required seal against the tubing. The earth sections that make up the seal can be created by collapsing...http://www.google.de/patents/US20060180320?utm_source=gb-gplus-sharePatent US20060180320 - System and Method to Seal by Bringing the Wall of a Wellbore into Sealing Contact with a Tubing
