<p>The invention provides a method for cementing in a lining tube (5) in a bore hole (1), said method comprising placing said lining tube at a distal end of said bore hole, introducing a liquid hydraulic cement (10) containing a setting retarder into said distal end of said bore hole, and applying a fluctuating electromagnetic or magnetic field from within said lining tube whereby to heat cement outside said lining tube directly or via a electromagnetic radiation transmitter (17) positioned on the outside of said lining tube.</p>
