| 摘要 |
A method for heating a composite tubular comprises establishing an electrical current in the composite material 148, 148 so as to heat the composite material, the composite material including a matrix 152 and a plurality of reinforcing elements 150 embedded within the matrix 152. The composite material 148, 148 may comprise carbon fibre reinforcing elements 150 embedded within a polyether ether ketone (PEEK) matrix 152. The electrical current may be established by applying an electric field (DC or AC) or by applying a time-varying magnetic field to induce a flow of current. The magnetic field may be applied using coils 582 or a magnet such as an electromagnet. The tubular may be formed from multiple composite layers 148, 148 and insulating layers such as glass 170, 178 or PEEK 146. The method may be used for heating a composite fluid conduit for use in a subsea environment for the removal of the build-up of wax and/or hydrates on an inner surface of the fluid conduit. Additionally or alternatively, the method may be used for deforming a composite fluid conduit, or for joining a composite fluid conduit 540a to a further component such as a further composite fluid conduit 540b. |
