A method of lining a borehole, a system and components of same

A tubular liner coated with a hardenable composition is expanded within a borehole using pressurized fluid to conform and harden, addressing handling and water ingress issues, ensuring stable borehole integrity and reducing operational disruptions.

EP4437301B1Active Publication Date: 2026-06-03MINOVA INT LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
MINOVA INT LTD
Filing Date
2022-11-25
Publication Date
2026-06-03

Smart Images

  • Figure IMGF0001
    Figure IMGF0001
  • Figure IMGF0002
    Figure IMGF0002
  • Figure IMGF0003
    Figure IMGF0003
Patent Text Reader

Abstract

A method of lining a borehole (10) including an open end with an inner surface leading away from the open end, the method including the following steps: introducing a tubular liner (25) with a blind end (40) in an inverted state to the open end of the borehole (10); forcing the tubular liner (25) into the borehole (10) by supplying pressurised fluid to the tubular liner whereby the pressurised fluid causes the tubular liner to abut against the inner surface (20) of the borehole (10) and the liner blind end (40) is forced in a direction away from the open end of the borehole; and, maintaining an overpressure within the tubular liner until a hardenable composition present in the tubular liner (25) hardens.
Need to check novelty before this filing date? Find Prior Art