PREFORME SOUPLE DURCISSABLE IN SITU POUR LE TUBAGE D'UN PUITS OU D'UNE CANALISATION, ET PROCEDE POUR LA METTRE EN PLACE SANS CIMENT DANS LE PUITS OU LA CANALISATION

摘要

A preform comprises, distributed along its wall, annular curable zones (3) which are radially and outwardly deformable so that they apply against the wall (20) of the well (2), or of the conduit, and which form, after curing, anchoring and sealing locks for the casing. Application: casing of wells, particularly oil wells, or conduits, without using cement.